Electrical Connections for Current Transformer Input Module CT3 ............ 30 1.20 Adding or Replacing an IO Module......................31 CHAPTER 2 MINI8 CONTROLLER LED INDICATORS ................... 32 Status Indication for Enhanced DeviceNet ....................33 2.1.1 Module Status Indication ............................33 2.1.2...
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OPC Server ................................. 44 CHAPTER 4 CONFIGURATION USING ITOOLS ..................... 45 Configuration ..............................45 4.1.1 On-Line/Off-line Configuration ..........................45 Connecting a PC to the Mini8 Controller ....................45 4.2.1 Configuration Cable and Clip ..........................45 4.2.2 Scanning ..................................45 Cloning ................................46 Configuring the Mini8 Controller ......................
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Output Definition Table ............................. 136 11.11.6 Requested Packet Interval ..........................136 11.12 Example - Connect Mini8 Controller to Allen-Bradley PLC via EtherNet/IP ....... 137 11.12.1 Installation................................137 11.12.2 Setting Up The Link Between Windows And The Plc Network ..............137 11.12.3...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 13. CHAPTER 13 APPLICATIONS ........................165 13.1 Humidity ..............................165 13.1.1 Overview ................................165 13.1.2 Temperature Control of an Environmental Chamber ..................165 13.1.3 Humidity Control of an Environmental Chamber ................... 165 13.1.4 Humidity Parameters ............................166 13.2...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.9.6 Fast ..................................235 19.10 PV Start ..............................235 19.11 Configuring the Programmer ......................236 19.12 Programmer Run Status ........................239 19.13 Creating a Program ..........................240 19.14 Program Editor ............................240 19.14.1 Analog View ................................ 241 19.14.2...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 28.1 Version 1.xx Parameter Tables ....................... 318 28.1.1 Configuring the Programmer (V1.xx) ....................... 318 28.1.2 To Select, Run, Hold or Reset a Program (V1.xx).................... 319 28.1.3 Creating a Program (V1.xx) ..........................319 28.1.4 To Select, Run, Hold or Reset a Program (Version 1.xx) ................320 28.2...
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It is important to maintain a record of instrument configurations or use an elevated ambient Eurotherm iTools to make clone copies of fully working instruments. This is temperature environment. described in section 4.3. Store this securely as a back up to be used to restore the configuration.
The Mini8 controller is pre-assembled in the factory to give the I/O required for the application as specified in the order code. With standard applications the Mini8 controller is also supplied configured. Alternatively, the Mini8 controller is configured using Eurotherm’s iTools configuration suite running on a personal computer.
To Install the Controller Use 35mm symmetrical DIN Rail to EN50022-35 x 7.5 or 35 x 15, Mount the DIN Rail horizontally as indicated in Figure 1.1. The Mini8 controller is NOT designed to be mounted in other orientations. Hook the upper edge of the DIN rail clip on the instrument on the top of the DIN rail and push.
Electrical Connections – Common to All Instruments The Mini8 controller is intended for operation at safe low voltage levels, except the RL8 relay module. Voltages in excess of 42 volts must not be applied to any terminals other than the RL8 relay module.
The configuration port (Modbus) is on an RJ11 socket. It is always fitted just to the right of the power supply connections. It is a point to point RS232 connection. Eurotherm supply a standard cable to connect a serial COM port on a computer to the RJ11 socket, part no.
Modbus Connectors In the Mini8 controller two RJ45 sockets are provided on the front panel for modbus connections. One is for the incoming connection to a PC acting as a master, the second may be used either to loop onto the next instrument or for a line terminator, see Figure 1-9.
A Modbus terminator is available from your supplier which is designed to fit into the spare RJ45 connector on the Mini8 controller. The order code is SubMin8/RESISTOR/MODBUS/RJ45. It is coloured black.
RS485 to RS232 Converter In practice it is often necessary to use a buffer to convert RS485 (or RS422) connections from the Mini8 controller to the RS232 port of the PC. The Eurotherm Controls KD485 Communications Adapter unit is recommended for this purpose.
1200m. Up to 31 slaves and one master may be connected. Slaves may be Mini8 controllers or other instruments such as Eurotherm controllers or indicators. The communication line must be daisy chained from device to device and, if the communications line is more than around two meters long, it must be correctly terminated.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 1.5.6 Wiring Connections for Modbus Broadcast Communications The Digital Communications module for the master must be the Field Comms and is only RS485/RS422. RS232 is not available. The Digital Communications module for the slave can be the Config port (RS232 only) or the Field Comms port (Not RS232).
DeviceNet and CANopen both use a 5 way, 5.08mm pitch, connector/screw terminal. The DeviceNet bus is powered (24V) from the system network, not from the instrument. The Mini8 controller requirement is a load of around 100mA. For the address switch see section 11.5.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 1.6.2 Network Length Network length depends on Baud rate:- Network Length Varies w/speed, up to 4000m possible w/repeaters Baud Rate 1M (CANopen) Thin trunk 100m (328ft) 100m (328ft) 100m (328ft) Max drop 6m (20ft) 6m (20ft)
This version of DeviceNet has been added for use in the Semiconductor industry. Configuration for both versions is the same and is described in the DeviceNet Handbook HA027506 which can be downloaded from www.eurotherm.com. The Enhanced DeviceNet interface uses a different connector, as described below, but cabling, cable specification and termination are the same as described in the previous section.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Electrical Connections for Profibus DP Two Profibus communications board options are available for the Mini8 controller. Standard Profibus 3 wire RS485 9 pin D connector intended for installation using standard Profibus cabling. Note that in this arrangement line terminations must be catered for in the cabling.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Electrical Connections for EtherNet (Modbus TCP) The EtherNet connection uses standard Cat5E patch cables (RJ45). These would be used with a 10BaseT hub to create a network. A crossover patch cable may be used ‘point-to-point’ i.e. to connect a single instrument directly to a PC.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 1.10 Electrical Connections for EtherNet/IP P A B RN CC LED Indicators See section 2 Configuration Port See section1.4.4 NET MOD Status Indication See section 2.2 RJ45 Socket Feature Switch See section 11.11.1 ...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 1.11 Electrical Connections for EtherCAT EtherCAT stands for Ethernet for Control Automation technology. A further description is given in section 11.13. The EtherCAT slave uses full duplex Ethernet physical layers. EtherCAT slaves can be daisy chained using RJ45 sockets in a wide Variety of network topologies.
The RTT module provides 4 RTD / Pt1000 inputs for 2, 3 or 4 wire CH1 Sense - connections. CH1 Current - Up to 4 modules may be fitted in a Mini8 controller and they may CH2 Current + be placed in any slot. CH2 Sense +...
Electrical Connections for Logic Input DI8 +24V The DI8 module provides 8 logic inputs. +24V They may be placed in any slot in the Mini8 controller. Up to 4 modules may be fitted in a Mini8 controller. +24V +24V +24V +24V Digital Inputs : ON requires +10.8V to +28.8V.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 1.17 Electrical Connections for Relay Output RL8 The RL8 module provides 8 relay outputs. RLY1 A Up to 2 modules may be fitted and in slots 2 and/or 3 only RLY1 B RLY2 A Relay contacts for full contact life: RLY2 B Maximum 264V ac 2amps with snubber fitted.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 1.19 Electrical Connections for Current Transformer Input Module CT3 This provides inputs for 3 current transformers. Reserved The heater load cables are threaded through the transformers. Reserved Each input is 50mA max into 5 ohms. Reserved...
Avoid touching components, keep fingers on the green connectors or the edge of the printed circuit boards. Remove screw → ← Remove screw Figure 1-17: Mini8 controller Cover Retaining Screws Remove all connectors. Remove the 2 screws indicated above Remove the cover.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 2. Chapter 2 Mini8 Controller LED Indicators LED indicators P, A and B are common to all Mini8 controllers and indicate the power and the state of the output relays as shown in the following table.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Status Indication for Enhanced DeviceNet If an Enhanced DeviceNet module is fitted (section 1.7), two bi-colour LEDs are NET MOD used to indicate Module and Network status. These two LEDs replace the single LED shown as FC on other modules. See previous section.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Status Indication for EtherNet/IP If an EtherNet/IP module is fitted (section 1.10) two bi-colour LEDs are used to NET MOD indicate Module and Network status. These two LEDs replace the single LED shown as FC on other modules. See previous section.
If an EtherCAT module (section 1.11) is fitted, the status of the module is indicated by four LEDs which have the meanings listed below: RUN ERR 2.3.1 ‘OP’ – Mini8 Run Status Indication Note: This indicator is equivalent to ‘RN’ in other protocols. LED State Colour...
The main communications port, FC, offers Modbus, DeviceNet, CANopen, Profibus, EtherNet TCP or EtherNet/IP and is normally connected to the system of which the Mini8 controller is a part. It is the means by which the Mini8 controller is operated.
Modbus master. Mini8 Controller Execution The nominal update of all inputs and function blocks is 110ms. However, in complex applications the Mini8 controller will automatically extend this time in multiples of 110ms. For example, eight simple heat/cool loops each with two alarms (40 wires) will run at 110ms, while the full EC8 configuration will run at 220ms because of the extra wiring and functionality.
First it is necessary to go ‘on-line’ to the Mini8 controller(s). This assumes the communication ports have been wired up to the COM port on the iTools computer (Chapter 11).
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MINI8 CONTROLLER: ENGINEERING HANDBOOK To view or change a parameter: Highlight the folder Press to get the parameter window or open up the parameter list by clicking on the required folder. Right click in the parameter list to reveal or hide columns.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Recipe Editor Press for this feature. Up to 8 recipes can be stored. They can also be named by the user. Recipes allow the operator to change the operating values of up to 24 parameters in an instrument for different batch items/processes by simply selecting a particular recipe to load.
Opening the COM port will show the attached instruments as shown below. The ‘ID001-Mini8’ folder will contain all the same folders for the instrument that would have been seen in iTools itself. Expand the folder and double click on the blue item tag to add to the List Window. The List Window shows all the selected parameters and their current value.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 3.9.1 OPC Scope List Window Context Menu Command Description Save Saves the OPC Scope configuration as <filename>.uix See Section 3.9.3 Copy Item DDE link Saves the DDE path to the clipboard. ‘Paste Special’ in an Excel cell and select ‘Paste Link’ and the current parameter value will be displayed in the cell.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK iTools Trend Graph showing Loop1 SP and PV icon allows the chart to occupy all the window space. HA028581 Page 43 Issue 15 Nov 15...
Close the server. Now if you double click on an OPC Scope file e.g. Mini8 Project.uix then this file will open OPC Scope and in turn, in background, OPC scope will open the OPC Server with this instrument file loaded. OPC Scope will then be active with live data from the instrument(s).
Alternatively iTools can be used ‘off-line’ without a real Mini8 controller connected at all. This virtual Mini8 controller can be created in iTools and again saved to disk as a clone file. This file can later be loaded into a real Mini8 controller to create the required real application.
Cloning Saving a Clone File On the iTools menu ‘File – Save to File’ allows the clone file of the attached Mini8 controller to be saved to disc as <user name>.UIC file. This can be loaded into another Mini8 controller.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Configuring the Mini8 Controller Once iTools is successfully connected to a Mini8 controller, it can be configured for the application in hand. Configuration involves selection of the required elements of functionality called ‘function blocks’ and setting their parameters to the correct values.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.4.2 Soft Wiring Soft Wiring (sometimes known as User Wiring) refers to the connections that are made in software between function blocks. Soft wiring, which will generally be referred to as ‘Wiring’ from now on is created during the instrument configuration using the iTools configuration package.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Simple Worked Example Using function blocks and wiring the following sections will show a blank Mini8 controller being configured to have one PID loop. 4.5.1 The I/O With the Mini8 controller successfully connected to iTools configuration can begin.
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The other thermocouple channels can be found by using the 2, 3, 4…7, 8 tabs on the top of the parameter window. Slot 2 in the Mini8 controller has a CT3 input card and this is configured elsewhere so the Tabs 9 to 16 are not shown.
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In the IO list ModIDs select the type of module. RTD modules are 4 input modules [RT4Mod (173)]. Figure 4-6: Mini8 Controller IO Module1 Defined as RTD RTDs can be defined as 2-wire [RTD2 (32)], 3-wire [RTD3 (33)] or 4-wire [RTD4 (34)] in the module definition list. It is important that the ‘IO Type’...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.5.2 Wiring The IO that has been configured now needs to be wired to PID loops and other function blocks. Select (GWE) to create and edit instrument wiring. The Graphical Wiring Editor window To add a function block drag it from the list and drop it on this editor.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Use drag and drop to select the first thermocouple from IOMod 1, the Cool output from IOMod 17 and the Heat output from IOMod 25 and drop them on the wiring window. Finally take the first PID block from Loop/Loop 1 and drop it on the wiring window. Note that as each block is used it greys out on the list.
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Once downloaded the dotted lines around the function blocks and the wires will become solid to show that the application is now in the Mini8 controller. The upper status line also shows that 3 wires have been used out of those available. Max is 250 but quantity depends on number of wires ordered (30, 60, 120 or 250).
MINI8 CONTROLLER: ENGINEERING HANDBOOK Graphical Wiring Editor Select (GWE) to view and edit instrument wiring. You can also add comments and monitor parameter values. Drag and drop required function blocks into the graphical wiring from the list in the left pane...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.1 Graphical Wiring Toolbar Download Grab & Pan Pan Drawing Delete, Undo & Redo Copy a Diagram Fragment to a File Copy Paste a Diagram Fragment to a File Create a Compound IO Setup Select Zoom Drawing...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.5.1 Function Block Context Menu Right clicking displays the context menu with the following entries. Function Block View Brings up an iTools parameter list which shows all the parameters in the function block. If the block has sub-lists these are shown in tabs...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.7 Function Block State The blocks are enabled by dragging the block onto the diagram, wiring it up, and downloading it to the instrument When the block is initially dropped onto the diagram it is drawn with dashed lines.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.8 Using Wires 4.6.8.1 Making A Wire Between Two Blocks • Drag two blocks onto the diagram from the function block tree. • Start a wire by either clicking on a recommended output or clicking on the icon at the bottom right corner of the block to bring up the connection dialog.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.8.3 Wire Colours Wires can be the following colours: Black Normal functioning wire. The wire is connected to an input which is not alterable when the instrument is in operator mode and so values which travel along that wire will be rejected by the receiving block Blue The mouse is hovering over the wire, or the block to which it is connected it selected.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.10 Using Monitors Drag a monitor onto the diagram and connect it to a block input or output or a wire as described in ‘Using Comments’. The current value (updated at the iTools parameter list update rate) will be shown in the monitor. By default the name of the parameter is shown, double click or use the context menu to not show the parameter name.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.13 Colours Items on the diagram are coloured as follows: Function blocks, comments and monitors which partially obscure or are partially obscured by other items are drawn red. If a large function block like the loop is covering a small one like a math2 the loop will be drawn red to show that it is covering another function block.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.15 Wiring Floats with Status Information There is a subset of float values which may be derived from an input which may become faulty for some reason, e.g. sensor break, over-range, etc. These values have been provided with an associated status which is automatically inherited through the wiring.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 4.6.16 Edge Wires If the Loop.Main.AutoMan parameter were wired from a logic input in the conventional manner it would be impossible to put the instrument into manual via communications. Other parameters need to be controlled by wiring but also need to be able to change under other circumstances, e.g.
5. Chapter 5 Mini8 controller Overview Input and output parameters of function blocks are wired together using software wiring to form a particular control strategy within the Mini8 controller. An overview of all the available functions and where to get more detail is shown below.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Complete list of Function Blocks. The list opposite represents an unconfigured Mini8 controller that has been ordered with all features enabled. If a particular block or blocks do not appear in your instrument then the option has not been ordered.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 7. Chapter 7 Instrument Folder Instrument / Enables The following table lists the options that can be enabled in the instrument. Enable flags are one bit for each item – i.e.Bit (0=1) enables item 1, Bit 1 (=2) item 2, Bit(3=4) item 3 and so on to Bit7(=128) enables Item 8.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Instrument / Diagnostics This list provides fault finding diagnostic information as follows:- Folder: Instrument Sub-folder: Diagnostics Name Parameter Description CPUFree This is the amount of free CPU Time left. It shows the percentage of the tasks ticks that are idle.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder: Instrument Sub-folder: Diagnostics Name Parameter Description Segments Left Number of Available Program Segments Gives the number of unused program segments. Each time a segment is allocated to a program, this value is reduced by one.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8. Chapter 8 I/O Folder This lists the modules fitted into the instruments, all the IO channels, the fixed IO and the current monitoring. The IO folder lists all the channels of each of the IO boards in the 4 available slots. Each board has up to 8 inputs or outputs making a maximum of 32 channels.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Logic Input Each DI8 card provides 8 logic input channels (voltage controlled) to the system. These can be wired to provide digital inputs to any function block within the system. 8.2.1 Logic Input Parameters Folder – IO Sub-folder Mod.1 to .32...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Logic Output If a slot is fitted with a DO8 board then 8 channels will be available to be configured and connected to Loop outputs, alarms or other logic signals. 8.3.1 Logic Out Parameters Folder – IO Sub-folder Mod.1 to .32...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.3.2 Logic Output Scaling If the output is configured for time proportioning control, it can be scaled such that a lower and upper level of PID demand signal can limit the operation of the output value.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Relay Output If slot 2 and/or 3 is fitted with a RL8 board then 8 channels will be available to be configured and connected to Loop outputs, alarms or other logic signals. 8.4.1 Relay Parameters Folder – IO Sub-folder Mod.9 to .24...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Thermocouple Input A TC4 offers 4 channels and the TC8 board offers 8 channels which may be configured as thermocouple inputs or mV inputs. 8.5.1 Thermocouple Input Parameters Folder – IO Sub-headers: Mod .1 to .32...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – IO Sub-headers: Mod .1 to .32 Name Parameter Description Value Default Access Level Fallback PV Fallback value Instrument range Conf See also section 8.5.5. Filter Time Input filter time. Off to 500:00 (hhh:mm) 1s600ms...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.5.2 Linearisation Types and Ranges Input Type Units Units Range Range Range Range Thermocouple type J -210 1200 -346 2192 Thermocouple type K -200 1372 -328 2501 Thermocouple type L -200 -328 1652 Thermocouple type R...
The high reliability factor of this method has favoured its use for long term monitoring. 8.5.3.5 CJC Options in Mini8 Controller Series 0 – Internal CJC measurement at instrument terminals 1 –...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.5.6 User Calibration (Two Point) All ranges of the controller have been calibrated against traceable reference standards. However in a particular application it may be necessary to adjust the displayed reading to overcome other effects within the process. A two point calibration is offered allowing offset and slope adjustment.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.5.8 Using TC4 or TC8 channel as a mV input Example – a pressure sensor provides 0 to 33mV for 0 to 200 bar. Set IO type as mV Set the Linearisation Type as Linear Set DisplayHigh to 200 (bar)
MINI8 CONTROLLER: ENGINEERING HANDBOOK Resistance Thermometer Input The RT4 module offers 4 resistance inputs which can be linear or PT100. 8.6.1 RT Input Parameters Folder – IO Sub-headers: Mod .1 to .32 Name Parameter Description Value Default Access Level Ident...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – IO Sub-headers: Mod .1 to .32 Name Parameter Description Value Default Access Level Cal State Calibration State. Idle Conf Calibration of the PV Input is described in Chapter 23.5 Status PV Status 0 - OK...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Analogue Output The AO4 offers 4 channels and the AO8 module 8 channels which maybe configured as mA outputs. An AO4 or AO8 may only be fitted in Slot 4. Folder – IO Sub-folder: Mod.25 to Mod.32...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Fixed IO There are two digital inputs, designated D1 and D2. Folder: IO Sub-folder: Fixed IO.D1 and .D2 Name Parameter Description Value Default Access Level Ident Channel Ident LogicIn LogicIn Read Only IO Type IO Type...
Current Monitor The Mini8 controller, with a CT3 card, has the capability of detecting failures of up to 16 heater loads by measuring the current flowing through them via 3 current transformer inputs. The failures that can be detected are:...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.9.2 Single Phase Configurations 8.9.2.1 Single SSR triggering With this configuration, failures of individual heater loads can be detected. For example, if the current detected flowing through Heater 3 is less than its PLF threshold then this will be indicated as Load3PLF.
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Mod.18 MINI8 Pre-Scaling controller As the Mini8 controller has the capability of detecting faults with up to 16 heater loads it can handle this type of application even if all 8 loops have split time proportioning outputs. HA028581 Page 89...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.9.3 Three Phase Configuration Configuration for Three Phase supply applications is similar to that for Single phase using three CT inputs All currents passed through an individual CT must come from the MINI8 same phase controller...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.9.4 Parameter Configuration If Current Monitor is enabled in the folder Instrument/Options/Current Monitor then the current monitor configuration folder appears as a subfolder in IO. Folder: IO Sub-folder: CurrentMonitor/Config Name Parameter Value Default Access Level Description...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.9.5 Commissioning 8.9.5.1 Auto Commission Auto commissioning of the Current Monitor is a feature that automatically detects which time proportioning outputs drive individual heaters (or heater sets), detects which CT input individual heaters are associated with and determines the Partial Load and Over Current thresholds using a 1:8 ratio.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 8.9.5.2 Manual Commission Manual Commissioning is also available and is intended for those users who want to commission the Current Monitor off-line or do not want to accept auto commissioned settings. How to Manual Commission Set Commission to Manual. CommissionStatus will display Commissioning and Load1 configuration parameters will become available Set Load1DrivenBy to the IO Module that is connected to the heater load.
Calibration A Mini8 controller supplied from factory with the CT3 card already installed the CT inputs will have been factory calibrated. If the CT3 card is installed at a later date then default calibration values are automatically loaded into the instrument.
Alarms are used to alert the system when a pre-set level has been exceeded or a particular condition has changed state. As the Mini8 controller has no display to show alarms the alarm flags are all available over communications in status words See Alarm Summary (Section 9.7).
MINI8 CONTROLLER: ENGINEERING HANDBOOK Analogue Alarms Analogue alarms operate on variables such as PV, output levels, etc. They can be soft wired to these variables to suit the process. 9.2.1 Analogue Alarm Types Absolute High - an alarm occurs when the PV exceeds a set high threshold.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Digital Alarms Digital alarms operate on Boolean variables. They can be soft wired to any suitable Boolean parameter such as digital inputs or outputs. 9.3.1 Digital Alarm Types Pos Edge The alarm will trigger when the input changes from a low to high condition...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Alarm Parameters Four groups of eight analogue alarms are available. The following table shows the parameters to set up and configure alarms. Folder: Alarm Sub-folders: 1 to 32 Name Parameter Description Value Default Access Level Type...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 9.5.1 Example: To Configure Alarm 1 Change Access level to configuration. In this example the high alarm will be detected when the measured value exceeds 100.00. The current measured value is 27.79 as measured by the ‘Input’ parameter. This parameter will normally be wired to an internal source such as a thermocouple input.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Digital Alarm Parameters Four groups of eight digital alarms are available. The following table shows the parameters to set up and configure alarms. Folder: DigAlarm Sub-folders: 1 to 32 Name Parameter Description Value Default Access Level...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Alarm Summary This is a summary of all the alarms in the Mini8 controller. It provides global alarm and acknowledge flags as well as 16 bit status words which can be read over communications by the supervisory system.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder: AlmSummary Sub-folders: General Name Parameter Description Value Default Access Level SBrkAlarmStatus1 16 bit word for IO channels Mod.1 to 8 Bit 0 Mod.1 fault Bit 1 Alarm 1 not ack’d Bit 2 Mod.2 fault Bit 3 Alarm 2 not ack’d...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Alarm Log A list of the last 32 alarms to have occurred is maintained in an Alarm Log. Folder: AlmSummary Sub-folder: AlmLog Name Parameter Description Value Default Access Level ClearLog Clear Alarm Log Yes/No Oper Entry1Ident...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 10 BCD Input The Binary Coded Decimal (BCD) input function block uses a number of digital inputs and combines them to make a numeric value. A very common use for this feature is to select a setpoint program number from panel mounted BCD decade switches.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 10.1.1 Example: To wire a BCD Input The BCD digital input parameters may be wired to digital input terminals of the controller. A DI8 module may be used and there are also two standard digital input terminals in FixedIO, D1 and D2.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 11 Digital Communications Digital Communications (or ‘comms’ for short) allows the Mini8 controller to be part of a system by communicating with a PC or a programmable logic controller (PLC). The Mini8 controller also has a configuration port for ‘cloning’ or saving/loading instrument configurations for future expansion of the plant or to allow you to recover a system after a fault.
These are shown in the wiring section of the manual section 1.4. Mini8 controller version 1.xx offers Modbus and DeviceNet, Version 2.xx adds CANopen, Profibus, EtherNet Modbus- TCP, EtherNet/IP and EtherCAT. These protocols are described in the following sections.
The switch is situated at the bottom of the Comms module. The switch gives addresses from 1 to 31. If Address 0 is set the Mini8 controller will then take the address and parity settings entered in the configuration of the instrument, see section 11.4.2.
Mini8 Controller Broadcast Master The Mini8 controller broadcast master can be connected to up to 31 slaves if no segment repeaters are used. If repeaters are used to provide additional segments, 32 slaves are permitted in each new segment. The master is configured by selecting a Modbus register address to which a value is to be sent.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.4.2 Modbus Parameters The following table shows the parameters available for Modbus. Folder – Comms Sub-folder: FC (Field Communications) Name Parameter Description Value Default Access Level Ident Comms Module Identity Modbus Modbus Read only Protocol Digital communications...
DeviceNet Only 2 parameters have to be set on the Mini8 controller for use with DeviceNet, baud rate and address. Both can be set on the hardware address switch situated under the DeviceNet connector. Each Mini8 controller must have a unique address on the DeviceNet network and all units must be set to the same Baud rate.
A standard CANopen Network is designed to work at data transfer rates of up to 1Mbits/s (depending upon bus length). Four baud rate settings are set on the comms DIP switches: 125K, 250K, 500K and 1M. 11.8.2 Mini8 Controller CANopen Features The main features of the Mini8 controller CANopen Slave Interface are: • CANopen-to-Modbus Gateway •...
Receive PDOs are typically used to configure instrument settings, for example, TargetSP. For the Mini8 controller the number of PDOs is limited to 4 transmit PDOs and 4 receive PDOs, giving a maximum of 16 transmit and 16 receive scaled integer parameters.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.4 Network Management (NMT) CANopen slave nodes include the following state machine, which allows the slaves to be in different operating states. Initialisation Boot Up FC LED: Off Pre-operational SDO communications Emergency Heartbeat/Node Guard Sync Stopped...
The Mini8 controller PDOs are preconfigured with a standard set of parameters. PDO blocks may be Enabled or Disabled via SDO communications. In the Mini8 controller the transmit PDOs can also be set to transmit cyclically, or on change of state, or both.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.6.2 Transmit PDO1 This contains the Analogue Alarm Status words. As default it is Enabled and configured to transmit when any of the status word values change. Object Sub Index Parameter Data Type Index 1A00h Number of Supported Entries [4] Unsigned8 AlmSummary.AnAlarmStatus1...
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Integer16 Loop.n.Main.AutoMan Integer16 Loop.n.OP.ManualOutVal Integer16 11.8.6.7 Receive PDO2 This contains control loop PID parameters, the loop number must be specified in order for the Mini8 controller to set the correct loop instance parameters. Object Sub Index Parameter Data Type Index...
11.8.7 Enabling and Disabling PDO Communications The Mini8 controller is supplied with all 8 PDOs enabled. Every PDO has a mapping object and a communication object as shown. The PDO is enabled by resetting the appropriate bit and disabled by setting the appropriate bit. This is done using SDO communications.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.8.1 Commstab Example 1 Remap Receive PDO 1 with UsrVal.1-4.Vals: Receive PDO1 from the Object pick list in Appendix C is shown below Object Parameter Data Type SCADA Index Index Address 2000h Receive PDO1 Note: Sub indices 02h – 04h are letter boxed via sub index 01h.
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Modbus Address Pick List Tx PDO 3 UsrVal.3.Val 15843 2000h 1Ch 1A02h 04h Use Commstab to remap PDO blocks. It is simpler and the remapping is saved in the Mini8 controller clone file. HA028581 Page 121 Issue 15 Nov 15...
Enable PDO by resetting bit 31 sub index 1 of the PDOs communication object. For example, remapping Receive PDO1 of a Mini8 controller with a node address of 1 with UsrVal.1-4.Vals the following 8 “writes” must be executed: This is the screen shot of the first write in 3 above.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.9.2 Using Device Configuration Software. This shows one step of the example above using configuration software. From the CANopen parameter tables in Appendix C UserVal 1 to 4 have sub-ibex C3h to C6h, or 195 to 198 so delete the existing elements in the Mapped Objects and add elements 195 to 198.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.10 Enabling & Disabling PDO Change of State transmission. It is possible to change the way a transmit PDO works – either cyclically or on change of state (COS), or both. Object Index 2002h allows COS transmission of PDOs to be enabled or disabled.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.11.2 Error Register Index Sub Index Description Value (U32) Bit set = error 1001h Generic Error: Mandatory Bit set = ANY error not supported Current: not supported Voltage: not supported Temperature: Communication Error: Bit set = error...
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Largest Sub-Index supported (1) Save all parameters (PDO mapping & Communication Objects) The Mini8 controller CANopen Interface supports the saving of parameters on request only i.e. does not support the saving of parameters autonomously. This is indicated when sub-index 01h is read:...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK In order to avoid saving parameters by mistake, saving is only executed when a specific signature is written to sub-index 01h. The signature is “save”: ASCII: Hex: Or Using the IXXAT Node Manager, select ASCII Data and write ‘save’...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.8.11.7 Heartbeat Time A heartbeat message will be generated cyclically at this interval (specified in ms). The default value is 0 indicating that the heartbeat messages are disabled. Index Sub Index Description Value milli-secs (U32) 1017h Heartbeat Message Interval 0 = disabled.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.9 Profibus Up to 127 Nodes can be connected to a Profibus Network and the address is set via the comms DIP switches. The Baud Rate is auto-detected and set by the master. Not Used...
Each EtherNet module contains a unique MAC address, normally presented as a 12 digit hexadecimal number in the format "aa-bb-cc-dd-ee-ff". In the Mini8 controllers MAC addresses are shown as 6 separate decimal values in iTools. MAC1 shows the first pair of digits in decimal, MAC2 shows the second pair of digits and so on.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.10.3.4 Preferred Master The "Comms" tab also includes configuration settings for "Preferred Master". Setting this IP address to the IP Address of a particular PC will guarantee that one of the 4 available EtherNet sockets will always be reserved for that PC (reducing the number of available sockets for anonymous connections to 3).
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.10.5 EtherNet Parameters These are listed in the ‘Comms’ ‘FC’ list in iTools. Folder - Comms Sub-folder: FC Name Parameter Description Value Default Access Level Ident Identifies that the EtherNet EtherNet EtherNet Read only comms module is fitted.
V8.68 or later, may be used to configure EtherNet communications. Using the RJ11 configuration port (CC), connect the Mini8 controller to the serial comms port of a pc running iTools. Ensure the Feature switch is set as shown in the diagram above and scan for the instrument in the normal way.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.11.3 EtherNet/IP Parameters EtherNet/IP parameters are shown under ‘Comms’ ‘FC ‘as shown in Figure 11-2 below. Figure 11-2: EtherNet/IP Parameters The parameter list is similar to the EtherNet TCP section 11.10.5 without the Preferred Master IP addresses (PrefMstr).
PLC 3. Connect an EtherNet cable between the EtherNet port on the PLC (typically an RJ45 socket) and the Mini8 controller. For a connection via a switch, a hub or directly to a Master, a Cat5e (straight through or cross-over) cable can be used.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 7. Click on ‘Add New’ and enter a suitable Driver Name in the pop-up window that then appears. Click on ‘OK’. The ‘Configure RS-232 DF1 devices’ window opens (Figure 11-4). Figure 11-4: Configure RS232 DFI Devices 8.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.12.3 Updating Firmware Power must be maintained during the Update process (which may take some tens of minutes). Loss of power during update may render the PLC inoperative. 1. Select the relevant instrument (Figure 11-5) and click on ‘Update Firmware’. In the ‘Choose Firmware Revision’...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK 3. Open the ‘Who active’ window. This is found under the Communications menu or the icon. Select the relevant instrument from the hierarchy. At this point it is possible to download the project to the controller (PLC).
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.12.5 Creating a Network Scanner 1. In the left pane tree-view of the RSLogix 5000 window, right click on the EtherNet symbol and select ‘New Module...’ from the menu (Figure 11-9). Figure 11-9: New Module 2. Expand the communications list (click on the +...
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1. Select the Comm Format first as: Data – INT – the Size is then defined as a 16-bit number. Note, this box is greyed when once the module has been established. 2. Address/Host name: The IP address of the Mini8 controller (this can be found in iTools, Comms menu IP address). 3. Input: 100;...
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This note shows how the above values can be found using the EZ-EDS tool, as follows:-. The Connection Parameters are fixed for a Mini8 controller, but may be found from the EDS file relevant to the Mini8 controller in use. The figure below shows an example of the EDS file for the Input Assembly Instance. Click Create/Decode Path button to show the ‘Path’...
1. Ensure an EtherNet/IP comms module is fitted and recognized by the instrument. 2. Configure the Mini8 controller using iTools. In the example below the all 8 loops in the Mini8 controller slave have been setup for temperature control as shown for Loop 1 in the iTools Graphical Wiring ( Figure 11-15).
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.12.7 Run Mode 1. Set the PLC into either ‘Remote’ or ‘Run’ mode. This can be done using the key switch on the PLC or in the RSLogix5000 menu. 2. Set the PLC online. At this point you may be asked to download the file if it is different...
It is possible to check that the PLC is communicating with the Mini8 controller using the ‘Tags’ display to write values to the Mini8 controller and to receive values from it. Once it is proved that the link is working, the pc may be disconnected from the PLC.
PLC master and Mini8 controller slave. Expilict (Acyclic) Messaging Using the RSNetWorx for EtherNet/IP, in the 'Device' menu, select Class Instance Editor, to read (get) and write (set) Explicit (Acyclic) messages to the Mini8 controller. The target controller MUST be selected. HA028581 Page 147...
6. Ensure Input and Output Size of EtherNet Module match exactly the Input and output Definitions (see Figure 11-12 New Module). 7. Ensure Assembly Instance values are supported by the Mini8 controller (see Figure 11-12 New Module) 8. Ensure EtherNet cables are not disconnected or damaged.
Modbus slave From the Mini8 controller point of view the comms card looks like a Modbus Master. For the external network, the Mini8 controller Comms card looks like an EtherCAT Slave (adapter) at a minimum of 100BaseT. 11.13.2 EtherCAT Feature Switch The feature switch consists of two HEX rotary switches.
Enable Mini8 via EtherCAT using the File over EtherCAT process, FoE. See also section 11.14 Note: All output parameters controlled by EtherCAT will retain the last value transmitted in EtherCAT OPERATIONAL mode.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.13.4 Parameter pick list and IO Mapping The EtherCAT protocol shares the 200 address parameter area with EthernetIP at 15360 to 15559. These are listed in sections 11.11.4 and 11.11.5. For EthernetIP this is divided into Input and Output parameters and this remains the default setting. However, EtherCAT does not need to maintain this organisation as the IO Mapping blocks determine the Input and Output block contents and size.
File over EtherCAT The master may be used to clone mini8 controllers over EtherCAT. A special file must be passed to the EtherCAT master for sending via File over EtherCAT. This file can be produced using iCloneLite available in iTools and has the file extension .uid.
11.14.1 To produce a UID File Open iCloneLite as follows: Start All Programs Eurotherm iTools Advanced iCloneLite Tools Clone File to iCloneLite Convertor iCloneLite starts with the opening page shown below: Browse to a previously produced UIC file (in this example mini8_2.uic) and press Convert...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 11.15 Trademark Terms of trademark for EtherCAT • English: "EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany." • German: „EtherCAT® ist eine eingetragene Marke und patentierte Technologie lizensiert durch die Beckhoff Automation GmbH, Deutschland.“...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 12 Counters, Timers, Totalisers, RT Clock A series of function blocks are available which are based on time/date information. These may be used as part of the control process. 12.1 Counters Up to two counters are available. They provide a synchronous edge triggered event counter.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.1.1 Counter Parameters Folder - Counter Sub-folders: 1 to 2 Name Parameter Description Value Default Access Level Enable Counter enable. Enabled Oper Counter 1 or 2 is enabled in the Disabled Instrument Options folder but they can also be turned on or off...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.2 Timers Up to eight timers can be configured. Each one can be configured to a different type and can operate independently of one another. 12.2.1 Timer Types Each timer block can be configured to operate in four different modes. These modes are explained below 12.2.2...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.2.3 On Delay Timer Mode This timer provides a delay between the trigger event and the Timer output. If the input pulse is less than the set delay time there is no output pulse. • The Output is set to Off when the Input changes from Off to On.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.2.4 One Shot Timer Mode This timer behaves like a simple oven timer. • When the Time is edited to a non-zero value the Output is set to On • The Time value is decremented until it reaches zero. The Output is then cleared to Off •...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.2.5 Minimum On Timer or Compressor Mode This type of timer may also be known as an ‘Off Delay’ function where the output goes ‘on’ when the input goes active and remains on for a specified period after the input goes inactive.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.2.6 Timer Parameters Folder – Timer Sub-folders: 1 to 4 Name Parameter Description Value Default Access Level Timer not configured Type Timer type Conf On Pulse Generates a fixed length pulse from an edge trigger Off Delay...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.3 Totalisers There are two totaliser function blocks which are used to measure the total quantity of a measurement integrated over time. A totaliser can, by soft wiring, be connected to any measured value. The outputs from the totaliser are its integrated value and an alarm state.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.3.1 Totaliser Parameters Folder – Total Sub-Folders: 1 to 2 Name Parameter Description Value Default Access Level ±9,999,999,999 TotalOut The totalised value -9999.9 to 9999.9. The value to be Oper totalised Note:- the totaliser stops accumulating if the input is ‘Bad’.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 12.4 Real Time Clock A real time clock (day of week and time only) is used to provide a daily and weekly scheduling facility and provides two corresponding outputs. The configuration for an output is an On-Day and an On-Time and an Off-Day and an Off-Time.
13.1.1 Overview Humidity (and altitude) control is a standard feature of the Mini8 controller. In these applications the controller may be configured to generate a setpoint profile (see Section 19 ‘Setpoint Programmer’). Also the controller may be configured to measure humidity using either the traditional Wet/Dry bulb method or it may be interfaced to a solid state sensor.
Zirconia (Carbon Potential) Control A Mini8 Controller has a Zirconia function block which may be used to control Carbon potential. The controller is often a programmer which generates carbon potential profiles. In this section it is assumed that a programmer is used.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 13.2.8 Zirconia Parameters Folder - Zirconia Sub-folders: None Name Parameter Description Value Default Access Level Probe Type Configures the type of probe to be Drayton Drayton used Accucarb Accucarb MacDhui MacDhui Oxygen LogO2 Log Oxygen BoschO2...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder - Zirconia Sub-folders: None Name Parameter Description Value Default Access Level CleanState The burn off state of the zirconia probe Waiting Cleaning Recovering CleanProbe Enable clean probe. Do not clean probe This may be wired to initiate...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 14 Input Monitor 14.1 Description There are two Input monitors. Each input monitor may be wired to any variable in the controller. It then provides three functions:- Maximum detect Minimum detect Time above threshold 14.1.1 Maximum Detect This function continuously monitors the input value.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 14.2 Input Monitor Parameters Folder - IPMonitor Sub-Folders: 1 or 2 Name Parameter Description Value Default Access Level The input value to be May be wired to an input source. The Oper R/O if wired monitored...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 15 Logic and Maths Operators. 15.1 Logic Operators Logic Operators allow the controller to perform logical calculations on two input values. These values can be sourced from any available parameter including Analogue Values, User Values and Digital Values.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.1.2 2 input Logic Operations The following calculations can be performed: Oper Operator description Input 1 Input 2 Output Invert = None 0: OFF The selected logic operator is turned off 1: AND The output result is ON when both Input...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.1.3 Logic Operator Parameters Folder – Lgc2 (2 Input Operators) Sub-Folders: 1 to 24 Name Parameter Description Value Default Access Level Oper To select the type of See previous table None Conf operator Input 1 Normally wired to a logic, analogue or user OPER value.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.2 Eight Input Logic Operators The eight input logic operator may be used to perform the following operations on eight inputs. Oper Operator description 0: OFF The selected logic operator is turned off 1: AND The output result is ON when ALL eight inputs are ON...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.3 Maths Operators Maths Operators (sometimes known as Analogue Operators) allow the controller to perform mathematical operations on two input values. These values can be sourced from any available parameter including Analogue Values, User Values and Digital Values. Each input value can be scaled using a multiplying factor or scalar.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.3.1 Math Operations The following operations can be performed: 0: Off The selected analogue operator is turned off 1: Add The output result is the addition of Input 1 and Input 2 2: Subtract (Sub) The output result is the difference between Input 1 and Input 2 where Input 1 >...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.3.2 Math Operator Parameters Folder – Math2 (2 Input Operators) Sub-Folders: 1 to 24 Name Parameter Description Value Default Access Level Oper To select the type of See previous table None Conf operator In1Mul Scaling factor on input 1...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.3.3 Sample and Hold Operation The diagram below shows the operation of the sample and hold feature. True False Result Figure 15-4: Sample and Hold HA028581 Page 179 Issue 15 Nov 15...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.4 Multiple Input Operator Block The Multiple Input Operator Block simultaneously outputs the Sum, Average, Minimum and Maximum values of up to 8 valid inputs. The outputs will be clipped to user-defined limits or be replaced by a fallback value based on the selected fallback strategy.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.4.1 Cascaded operation Multiple input operator blocks may be cascaded to allow operations on more than eight inputs (33 max for four instances of the block). shows how two blocks should be configured to find the average of more than eight inputs. If required the second block could then be cascaded to a third to provide up to eight more inputs.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.4.3 Multiple Input Operator Block Parameters Folder – MultiOper (Multi Operator) Sub-folders: 1 to 4 Name Parameter Description Value Default Access Level NumIn Number of inputs selected 2 to 8 Config to use. CascNumIn Number of cascaded inputs...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 15.5 Eight Input Analog Multiplexers The eight Input analogue multiplexers may be used to switch one of eight inputs to an output. It is usual to wire inputs to a source within the controller that selects that input at the appropriate time or event.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 16 Input Characterisation 16.1 Input Linearisation The Lin16 function block converts an input signal into an output PV using a series of up to 15 straight lines to characterise the conversion. The function block provides the following behaviour.
MINI8 CONTROLLER: ENGINEERING HANDBOOK If the input value is outside the translated range then the output status Out Low will indicate Bad, and the value will be limited to the nearest output limit. The units and resolution parameters will Note: be used for the output values.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 16.1.2 Input Linearisation Parameters List Folder – Lin16 Sub-folders: 1 to 2 Name Parameter Description Value Default Access Level Units Units of the linearised None Conf output AbsTemp V, mV, A, mA, PH, mmHg, psi, Bar, mBar, %RH, %, mmWG,...
MINI8 CONTROLLER: ENGINEERING HANDBOOK List Folder – Lin16 Sub-folders: 1 to 2 Name Parameter Description Value Default Access Level Out14 Adjust to correspond to Oper input 14 Status Status of the block. A value Good Within operating limits of zero indicates a healthy A bad output may be caused conversion.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Poly Sub-Folders: 1 to 2 Name Parameter Description Value Default Access Level Fallback Type Fallback Type Clip Bad If the input is outside a limit Conf the output will be clipped to The fallback strategy will come...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 17 Load The load simulation block provides styles of load which can be used to allow an instrument configuration to be tested before connection to the process plant. In the current issue of firmware the simulated loads available are Oven and Furnace.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 18 Control Loop Set Up The Mini8 controller has up to 16 loops of control. Each Loop has two outputs, Channel 1 and Channel 2, each of which can be configured for PID or On/Off.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.2 Loop Parameters – Main Folder – Loop.1 to Loop.16 Sub-Folder: Main Name Parameter Description Value Default Access Level AutoMan To select Auto or Manual operation. Auto Automatic (closed loop) Auto Oper operation Manual (output power...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.3 Loop Set up These parameters configure the type of control. Folder – Loop.1 to Loop.16 Sub-folder: Setup Name Parameter Description Value Default Access Level Selects the channel 1 control Channel turned off Conf algorithm. You may select...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.4 PID Control The PID controller consists of the following parameters:- Parameter Meaning or Function Proportional The proportional term, in display units or %, delivers an output that is proportional Band ‘PB’ to the size of the error signal.
Figure 18-3: Proportional + Integral Control The units for the integral term are measured in time (1 to 99999 seconds in Mini8 controllers). The longer the integral time constant, the more slowly the output is shifted and results in a sluggish response. Too small an integral time will cause the process to overshoot and even oscillate.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.4.3 Derivative Term Derivative action, or rate, provides a sudden shift in output as a result of a rapid change in error, whether or not this is caused by PV alone (derivative on PV) or on SP changes as well (derivative on error selection). If the measured value falls quickly derivative provides a large change in output in an attempt to correct the perturbation before it goes too far.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.4.4 High and Low Cutback Cutback high ‘CBH’ and Cutback low ‘CBL ’ are values that modify the amount of overshoot, or undershoot, that occurs during large step changes in PV (for example, under start-up conditions). They are independent of the PID terms which means that the PID terms can be set for optimal steady state response and the cutback parameters used to modify any overshoot which may be present.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.4.7 Loop Break The loop is considered to be broken if the PV does not respond to a change in the output in a given time. Since the time of response will vary from process to process the Loop Break Time (LBT – PID list) parameter allows a time to be set before a Loop Break Alarm (Lp Break - Diag list) is initiated.
The transfer between one set and the next depends on the value from a remote source for example, a digital input The Mini8 controller has three sets of PID values for each loop – the maximum number, which you may wish to use, is set by ‘Num Sets’ parameter.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.4.10 PID Parameters Control loops must be specifically ordered – Order Code MINI8 – 4LP, 8LP or 16LP. To enable a loop place one of the Loop function blocks on the graphical wiring page. Folder – Loop Sub-folders: Loop1.PID to Loop16.PID...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5 Tuning Function Block Tuning involves setting the following parameters. Proportional Band ‘PB’, Integral Time ‘Ti’, Derivative Time ‘Td’, Cutback High ‘CBH’, Cutback Low ‘CBL’, and Relative Cool Gain ‘R2G’ (applicable to heat/cool systems only). The controller is shipped with these parameters set to default values. In many cases the default values will give adequate stable straight line control, however, the response of the loop may not be ideal.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Other Considerations • If a process includes adjacent interactive zones, each zone should be tuned independently. • It is always better to start a tune when the PV and setpoint are far apart. This allows start up conditions to be measured and cutback values to be calculated more accurately.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.4 Automatic Tuning Auto Tune automatically sets the following parameters:- Proportional Band ‘PB’ If ‘Ti’ and/or ‘Td’ is set to OFF, because you wish to use PI, PD or P only Integral Time ‘Ti’ control, these terms will remain off after an autotune.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.5 Tune Parameters Folder – Loop.Loop.1 to Loop.16 Sub-folder: Tune Name Parameter Description Value Default Access Level AutoTune To start self tuning Stop Stop Oper Enable Start OutputHigh Set this to limit the maximum Between Low Output and 100.0 100.0...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.7 To Start Autotune a. Select the loop to be tuned, b. Set AutoTune Enable to On A One-shot Tune can be performed at any time, but normally it is performed only once during the initial commissioning of the process.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.11 Autotune from Below SP – Heat/Cool The point at which Automatic tuning is performed (Tune Control Point) is designed to operate just below the setpoint at which the process is normally expected to operate (Target Setpoint). This is to ensure that the process is not significantly overheated or overcooled.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.12 Autotune From Below SP – Heat Only The sequence of operation for a heat only loop is the same as that previously described for a heat/cool loop except that the sequence ends at ‘F’ since there is no need to calculate ‘R2G’.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.13 Autotune at Setpoint – Heat/Cool It is sometimes necessary to tune at the actual setpoint being used. This is allowable in Mini8 Controller and the sequence of operation is described below. Pk to Pk Hysteresis...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.14 Failure Modes The conditions for performing an autotune are monitored by the parameter ‘State’ (Tune folder). If autotune is not successful error conditions are read by this parameter as follows:- Timeout This will occur if any one stage is not completed within one hour. It could be due to the loop being open or not responding to the demands from the controller.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.15 Manual Tuning If for any reason automatic tuning gives unsatisfactory results, you can tune the controller manually. There are a number of standard methods for manual tuning. The one described here is the Ziegler-Nichols method.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.5.17 Manually Setting the Cutback Values Enter the PID terms calculated from the table in section 18.5.15 before setting cutback values. The above procedure sets up the parameters for optimum steady state control. If unacceptable levels of overshoot or undershoot occur during start-up, or for large step changes in PV, then manually set the cutback parameters.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.6 Setpoint Function Block For each of the 16 loops, the controller setpoint is the Working Setpoint that may come from a number of alternative sources. This is the value ultimately used to control the process variable in each loop.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.6.2 SP Tracking When setpoint tracking is enabled and the local setpoint is selected, the local setpoint is copied to ‘TrackSP’. Tracking now ensures that the alternate SP follows or tracks this value. When the alternate setpoint is selected it initially takes on the tracked value thus ensuring that no bump takes place.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Loop.1 to Loop.16 Sub-folder: SP Name Parameter Description Value Default Access Level ServoToPV Servo to PV Enable Disabled Conf When Rate is set to any value other Enabled R/O in L3 than Off and Servo to PV is enabled,...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.6.6 Setpoint Limits The setpoint generator provides limits for each of the setpoint sources as well as an overall set of limits for the loop. These are summarised in the diagram below. Range High SPTrim HighLimit...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.6.8 Setpoint Tracking The setpoint used by the controller may be derived from a number of sources. For example:- Local setpoints SP1 and SP2. These may be selected using the parameter ‘SP Select’ in the SP folder, through digital communications or by configuring a digital input which selects either SP1 or SP2.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.7 Output Function Block The output function block allows you to set up output conditions from the control block, such as output limits, hysteresis, output feedforward, behaviour in sensor break, etc. Folder – Loop.1 to Loop.16...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Loop.1 to Loop.16 Sub-folder: OP Name Parameter Description Value Default Access Level SbrkOp Sets the output level to be Between output Hi and Output Lo Oper adopted when in sensor break condition. Manual Mode...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Loop.1 to Loop.16 Sub-folder: OP Name Parameter Description Value Default Access Level FF_Rem Remote Feedforward signal. This is not affected by FeedForward Allows an another signal to be Gain or Offset used as Feedforward.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.7.2 Output Rate Limit The output rate limiter is a simple rate of change limiter which will prevent the control algorithm demanding step changes in output power. It may be set in percent per minute. The rate limit is performed by determining the direction in which the output is changing, and then incrementing or decrementing the Working Output (‘ActiveOut’...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.7.5 Feedforward Feedforward is a value, which is scaled and added to the PID output, before any limiting. It can be used for the implementation of cascade loops or constant head control. Feedforward is implemented such that the PID output is limited to trim limits and acts as a trim on a FeedForward Value.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 18.7.6 Effect of Control Action, Hysteresis and Deadband For temperature control ‘Loop.1.Control Action’ will be set to ‘ ’. For a PID controller this means that the heater Reverse power decreases as the PV increases. For an on/off controller output 1 (usually heat) will be on (100%) when PV is below the setpoint and output 2 (usually cool) will be on when PV is above the setpoint Hysteresis applies to on/off control only.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 19 Setpoint Programmer 19.1 INTRODUCTION In a setpoint programmer you can set up a profile in the controller in which the setpoint varies in a pre-determined way over a period of time. Temperature is a very common application where it is required to ‘ramp’ the process value from one level to another over a set period of time.
Mini8 Controller Programmer Block(s) Mini8 Controller Version 2.xx have 8 programmer blocks available. Each of these blocks has one program of up to 16 segments. One block may be wired to all 16 loops or up to 8 loops may have their own programmer block. In this...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.3 Segment Types Depending on the type of program configured, a segment may be set as:- 19.3.1 Rate A Ramp segment provides a controlled change of setpoint from an original to a target setpoint. The duration of the ramp is determined by the rate of change specified. Two styles of ramp are possible in the range, Ramp-Rate or Time-To-Target.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.3.6 Wait Wait specifies the criterion for which a segment cannot proceed to the next segment. Any segment can be defined as ‘Wait’ in the ‘Program Edit’ page. The next parameter is then ‘Wait For’ and here you define the criterion.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.4 Output Events Program segments have configurable events. ‘Wait’ ‘GoBack’ and ‘End’ segments do not have events. There are up to 8 digital events, PV Events and Time Events. 19.4.1 Digital Events These are digital flags which can be set on or off for each of the segments.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.4.2 PV Event & User Value PV Events are essentially a simplified analogue alarm per segment based on the programmer PV input. For this feature the Programmer.n.Setup.EnablePVEvent must be set to ‘Yes’. The PV Event Output (PVEventOP) may be used to trigger the required response.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.4.3 Time Event Digital events can simply be the turning on of a digital output for the duration of a segment. An extension of this is the Time Event. For this feature Programmer.n.Setup.MaxEvents must be > 0 and the Programmer.n.Setup.EnableTimeEvent must be set to ‘Yes’.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Segment TimeEvent = Event1 TimeEvent = On OffTime OffTime * = 0 OffTime Event Output OnTime=0 OnTime Time Event = Event1 Time Event = Off OffTime Event Output OnTime = 0 Time Event = Event1 TimeEvent = Off OffTime Error : OffTime >...
In 2.xx Mini8 controller Holdback Type in Dwell segments is replaced by a Guaranteed Soak Type (G.Soak) which can be set as Off, Lo, Hi or Band. A Guaranteed Soak Value (G.Soak Val) is available in Dwell segments and this provides the ability to set different values in any Dwell segment.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.6 PID Select It is possible to set up three sets of PID values, see section 18.4.9. Any one of these sets may be activated in any segment of the program, except if the segment is configures as Wait, Goback or End. For this feature Programmer.n.Setup.EnablePIDSched must be set to ‘Yes’.
19.8 Power Fail Recovery In the event of power fail to the Mini8 controller, a strategy may be set in configuration level, which defines how the controller behaves on restoration of the power. The action on power failure is selecte3d using Programmer.n.Setup.PowerFailAct and offers:...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.9 To Run, Hold or Reset a Program The program is operated via parameters found in the Program Setup lists, Programmer.n.Setup.ProgRun, .ProgReset, .ProgHold, .ProgRunReset and .ProgRunHold. These parameters can be wired to digital inputs or written to over comms.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.9.5 Advance segment Advance sets the program setpoint equal to the target setpoint and moves to the next segment. Parameter is Programmer.n.Setup.AdvSeg and will advance to next segment when input goes from false to true. 19.9.6 Fast Executes the program at 10x the normal speed.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.11 Configuring the Programmer Programmer.n.Setup contains the general configuration settings for the Programmer Block and the parameters used to operate the programmer. Programs are created and stored in the Program Folder. The Programmer status can be viewed using the parameters in the Programmer.n.Run folder.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Programmer.1 to .8 Sub-folder: Setup Name Parameter Description Value Default Access Level EnableTime Enables the first Event Output to be Conf configured as a Time Event - each Event Time Event segment may then specify an on and...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Programmer.1 to .8 Sub-folder: Setup Name Parameter Description Value Default Access Level EventOut1 to 8 Flags showing event states No/Yes End of Seg Flag showing end of segment state No/Yes ProgError Program Error 0 No error...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.12 Programmer Run Status The ‘Run’ folder shows the current program status. The program can also be operated by setting the ProgStatus parameter to the required state. Folder – Programmer.1 to .8 Sub-folder: Run Name Parameter Description...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.13 Creating a Program A folder exists for each Program containing a few key parameters listed below. This folder would normally be viewed via the iTools Program Editor under the Program Parameters tab. The Program Editor is used to create the segments of Program itself using the Segment Editor tab.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.14.1 Analog View This view is used for editing the analogue setpoints. Select a program number using - 1 in this example. Double click and enter a name for the program - “Example” Double click and enter a name for the TargetSP - “Temperature”...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Note PSP1 tab shown in Config mode. This tab displays all the parameters in Programmer.1.Setup folder. With 8 Programmers enabled 8 PSP tabs would be shown. Figure 19-6: PSP tabs Click on ‘EventOuts’ to set up the event outputs for each segment. Note only 4 events have been enabled.
Alternatively click the icon and the Digital Editor is shown (or hit Cntrl D) Figure 19-8: Digital Editor showing event outputs Once the program is complete it may be saved to file, or loaded to another programmer in this Mini8 controller or in any other Min8 also connected.
– i.e. EventsOut, UserVal etc. Firstly select the instrument on the network, COM1.ID001-Mini8 (or any other Mini8 controller on the network). Then set the target programmer number and click OK. In this case the program in Programmer 1 will be sent to Programmer 2.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 19.15 Wiring the Programmer Function Block. The Programmer block is invariably used with the Loop blocks. When a programmer block is placed on the graphical wiring editor it will automatically make the essential connections between itself and its associated Loop block i.e.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK If a single programmer block is used, wired to several loops then a plan has to be made about the SP & PV feedback to the programmer block. In the design below the AVERAGE PV of the 3 loops has been used for the PV but for the Setpoint Loop1 has been selected as the ‘master’...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 20 Switch Over This facility is commonly used in temperature applications which operate over a wide temperature range. A thermocouple may be used to control at lower temperatures and a pyrometer then controls at very high temperatures.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 20.1 Switch Over Parameters Folder – SwitchOver Sub-folders: .1 Name Parameter Description Value Default Access Level InHigh Sets the high limit for the Input range Oper switch over block. It is the highest reading from input 2 since it is the high range input sensor.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 21 Transducer Scaling The Mini8 controller includes two transducer calibration function blocks. These are a software function blocks that provide a method of offsetting the calibration of the input when compared to a known input source. Transducer scaling is often performed as a routine operation on a machine to take out system errors.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 21.2 Load Cell A load cell provides a mV analogue output which may be connected to a linear TC8 input. When no load is placed on the cell the output is normally zero. However, in practice there may be a residual output and this can be calibrated out in the controller.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Folder – Txdr Sub-folders: .1 or .2 Name Parameter Description Value Default Access Level Cal Band The calibration algorithms use Conf the threshold to determine if the value has settled. When switching in the shunt resistor,...
21.4.2 Tare Calibration The Mini8 controller has an auto-tare function that is used, for example, when it is required to weigh the contents of a container but not the container itself. The procedure is to place the empty container on the weighbridge and ‘zero’ the controller. The procedure is as...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 21.4.3 Load Cell A load cell output must be within the range 0 to 77 mV to go into a TC8 input. Use a shunt for mA inputs, mV can possibly go direct, Volt inputs must use a potential divider.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 22 User Values User values are registers provided for use in calculations. They may be used as constants in equations or temporary storage in extended calculations. Up to 32 User Values are available. They are arranged in 4 groups of 8. Each User Value can then be set up in the ‘UserVal’...
Consider using the ‘Offset’ parameter for User Cal (e.g. Mod.1.Offset). This can be set to correct any measured difference between the Mini8 controller given PV and a calibration value obtained from another source. This is useful where the process setpoint remains at about the same value during use.
Each channel of the RT4 card must be individually connected to the calibrated resistance box using the 4 wire connection. The Mini8 controller must be in Configuration Mode. 23.3.2 Calibration Wire the resistance box to channel 1 using the four wire connection.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 23.5 Calibration Parameters List Header - IO Sub-headers: Mod.1 to Mod.32 Name Parameter Value Default Access Description Level Cal State Calibration Idle Normal operation Idle Conf state of the Hi-50mV High input calibration for mV ranges...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Chapter 24 OEM Security 24.1 Introduction OEM security allows users, typically OEMs or distributors, to be able to protect their intellectual property by preventing unauthorised cloning of controller configurations. OEM security is only available as a special order and is identified by special number EU0725 which appears on the label showing the order code.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 24.3 Step 1 – View iTools OPC Server With iTools open and connected to the target instrument open the iTools OPC server using Options>Advanced>Show Server. Click on the OPC Server application on your windows Taskbar to view the server.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 24.4 Step 2 – Create Custom Tags Expand the connected instrument to show all folders. Close to the bottom of the tree you will find a folder called CustTags. Mini8 Tag Icon CustTags Folder Click on CustTags then click on the Tag icon on the Toolbar. Enter the name of the Tag as ‘Locked’ and its address as 16116 then press OK.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK When all three Tags are created you will see the following:- Mini8 Minimise (do not close) the OPC server to the taskbar and return to iTools. You can now select CustTags on the connected instrument by double clicking on the folder when in the browse tab.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 24.5 Step 3 – Activate OEM Security At the same time as viewing the CustTag parameters double click on another folder and position it show that you can see parameters from both. COM1.ID001-Mini8 Mini8 v.2.3 Enter a numerical code for the parameter ‘Lock Code’ and notice that the ‘Locked’ parameter now shows true(1) and the parameters in the other folder now show question marks indicating that iTools is no longer reading them.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 24.6 Step 4 – Deactivate OEM Security Enter the code you used in step 3 into ‘Unlock Code’ to enable full iTools communication. If an incorrect code is entered this parameter will become unavailable for a time period, indicated by a warning message ‘Failed to write data to device’.
25.1 Comms Table The tables that follow do not include every parameter in the Mini8 controller. The Comms Table is used to make most parameters available at any SCADA address. Folder – Commstab Sub-folders: .1 to .250...
60 output parameters – setpoints etc.). Loops 9-16 are not included in the DeviceNet tables as there are insufficient attributes for the DeviceNet parameters The Mini8 controller DeviceNet communicates is supplied with a default input assembly table (80 bytes) and output assembly table (48 bytes). The parameters included are listed below.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Parameter Attribute ID Manual Output – Loop 7 Setpoint 1 – Loop 7 Setpoint 2 – Loop 7 Auto/Manual Mode – Loop 7 Proportional Band – Loop 7 working Set Integral Time – Loop 7 working Set Derivative Time –...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Parameter Attribute ID Sensor Break Alarm Status 1 Sensor Break Alarm Status 2 Sensor Break Alarm Status 3 Sensor Break Alarm Status 4 CT Alarm Status 1 CT Alarm Status 2 CT Alarm Status 3 CT Alarm Status 4...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 26.2.1 Table Modification Make a list of parameters required in the input and output tables to suit the application. If the parameter is listed in the predefined list then use the attribute number of that parameter.
MINI8 CONTROLLER: ENGINEERING HANDBOOK Appendix C CANOPEN PARAMETER TABLES Instruments supplied after July 2009 no longer support CANopen interface. Information is included here to cover instruments supplied previously with CANopen. 27.1 Manufacturer Object – Pick List Object SCADA Index Parameter...
MINI8 CONTROLLER: ENGINEERING HANDBOOK Appendix D Version 1.xx Programmer 28.1 Version 1.xx Parameter Tables 28.1.1 Configuring the Programmer (V1.xx) Programmer.1.Setup contains the general configuration settings for the Programmer Block. Programs are created and stored in the Program Folder. Once a Program exists it can be run using the parameters in the Programmer.1.Run folder.
MINI8 CONTROLLER: ENGINEERING HANDBOOK 28.1.2 To Select, Run, Hold or Reset a Program (V1.xx). The ‘Run’ folder allows an existing program to be selected and run. The folder also shows the current program status: Folder – Programmer.1 Sub-folder: Run Name...
MINI8 CONTROLLER: ENGINEERING HANDBOOK 28.1.4 To Select, Run, Hold or Reset a Program (Version 1.xx) The ‘Run’ folder allows an existing program to be selected and run. The folder also shows the current program status: Folder – Programmer.1 Sub-folder: Run...
EMC of any particular installation. The Mini8 controller is intended for operation at safe low voltage levels, except the RL8 relay module. Voltages in excess of 42 volts must not be applied to any terminals other than the RL8 relay module.
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Personnel Installation must only be carried out by suitably qualified personnel. Mounting The Mini8 controller should be mounted in a suitable enclosure with suitable ventilation to ensure the ambient temperature remains below 50ºC. Wiring It is important to connect the controller in accordance with the wiring data given in this guide. Take particular care not to connect AC supplies to the low voltage sensor input or other low level inputs and outputs.
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MINI8 CONTROLLER: ENGINEERING HANDBOOK INSTALLATION REQUIREMENTS FOR EMC To ensure compliance with the European EMC directive certain installation precautions are necessary as follows: • For general guidance refer to EMC Installation Guide, HA025464. • When using relay outputs it may be necessary to fit a filter suitable for suppressing the conducted emissions.
Any “typical” figures quoted are the expected values at 25°C ambient and 24Vdc supply. The nominal update of all inputs and function blocks is every 110ms. However, in complex applications the Mini8 controller will automatically extend this time in multiples of 110ms.
The RL8 supports 8 independently programmable channels. This module may only be fitted in slot 2 or 3, giving a maximum of 16 relays in a Mini8 controller. The Mini8 controller chassis must be earthed (grounded) using the protective earth stud. Channel Types...
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MINI8 CONTROLLER: ENGINEERING HANDBOOK Parameter Folder Section Parameter Folder Section Totaliser 11.3.1 Status Transducer scaling 20.4 Safe OP Val Output function block 17.7 Status User values 21.1 Sat-Sun Real time clock 11.4 Status Calibration 22.5 Saturday Real time clock 11.4...
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Invensys Eurotherm Limited. Eurotherm Limited pursues a policy of continuous development and product improvement. The specifications in this document may therefore be changed without notice. The information in this document is given in good faith, but is intended for guidance only.
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