SSP Safety Simplifier Manual
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SSP Safety Simplifier Manual

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Safety Simplifier Manual
Design, programming, installation, maintenance and decommissioning of Safety Simplifier
Systems.
Safety Simplifier makes it easy to create safe and reliable industry and
workplace environments, using wireless safety communication.
Safety Simplifier can be customized with many different features and
functions to fit your application.

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Summary of Contents for SSP Safety Simplifier

  • Page 1 Safety Simplifier Manual Design, programming, installation, maintenance and decommissioning of Safety Simplifier Systems. Safety Simplifier makes it easy to create safe and reliable industry and workplace environments, using wireless safety communication. Safety Simplifier can be customized with many different features and...
  • Page 2 SSP North AB 30/08/2018 Manual V2f...
  • Page 3 This document is the original document All rights of this documentation are reserved by SSP North AB (Safety System Products North AB). Copies may be made for internal uses. Source code from third-parties and/or open source software has been used for some parts of the configuration software.

  • Page 4: Table Of Contents

    I/O outputs for “non-safety” information ................15 2.1.6 LED information ......................... 15 Safety Precautions when using Safety Simplifier ..........16 Safety information regarding I/O and relay outputs of Safety Simplifier ....19 3.1.1 The relay outputs ....................... 19 3.1.2 Solid-state transistor outputs ..................... 20 3.1.3...
  • Page 5 The Project Manager ......................58 13.5 Making your first program ..................58 13.5.1 Creating a Project ......................58 13.5.2 Hardware Configuration ..................... 59 13.5.3 The Logic Editor......................... 60 13.5.4 Navigation in the logic graph ..................... 61 SSP North AB 30/08/2018 Manual V2f...
  • Page 6 13.11.3.3 Filter ON (ms) ........................92 13.11.3.4 Filter OFF (ms) ........................92 13.11.3.5 Enable Simultaneity ......................92 13.11.3.6 Simultaneity (ms) ....................... 92 13.11.3.7 Enable Zero Time ......................93 13.11.3.8 Zero Time (ms) ........................93 SSP North AB 30/08/2018 Manual V2f...
  • Page 7 Delay OFF ........................122 14.4.2 Delay ON ......................... 123 14.4.3 Single Reset ........................124 14.4.4 Sequence Reset ......................125 14.4.5 Stepping ........................... 126 14.4.6 Internal Input ........................127 14.5 Logic ......................... 129 14.5.1 NOT ..........................129 SSP North AB 30/08/2018 Manual V2f...
  • Page 8 Link OK ..........................143 14.9 Advanced ......................144 14.9.1 Unsafe & Safe ........................144 14.10 Non-Safety......................144 14.10.1 Serial Encoder ......................... 144 14.10.2 Serial Decoder ......................... 146 14.11 Miscellaneous ....................147 14.11.1 Comment ......................... 147 SSP North AB 30/08/2018 Manual V2f...
  • Page 9 Safety Simplifier Introduction | System overview | Features | Safety Precautions | I/O and Relay outputs | Technical data | Installation | Bus communication | PFH-d-values | Reaction time | Electrical diagrams | LED display SSP North AB 30/08/2018 Manual V2f...

  • Page 10: Introduction

    The manual explains the function, the special safety design to consider for a safety system, the calculation of safety values for Safety Simplifier as an element of safety and how to connect and install the product. Programming, downloading, updating and debugging Simplifier Systems is described in the software part of this manual.

  • Page 11: Contact

    When reading the software part of this manual, it is recommended to have Simplifier Manager running on a computer nearby, and one or more Safety Simplifier units to test with. This is so the user can follow along the examples and get an understanding of how the functions work in practice.

  • Page 12: Safety Assessment

    The Safety Simplifier system is designed to achieve up to SIL 3, SILCL 3, PL e, Cat. 4, Type 4 in accordance with the IEC 61508 and ISO 13849-1. The SIL and PL of an application using Safety Simplifier also must include the parameters of the safety devices, machine control systems and other relevant equipment.

  • Page 13: The Safety Simplifier System Overview And Features

    (EUC) requiring a Safety Integrated Level (SIL) up to SIL 3 according to IEC 61508 and Ple, cat 4 according to 13849-1. The Safety Simplifier is a Safety PLC intended to solve logic for one or several safety functions in an EUC.

  • Page 14: Features

    10 - 30 VDC OSSD outputs with short circuit detection between up to 14 outputs 10 - 30 VDC for 8 safety coded signal within one Safety Simplifier 10 - 30 VDC for 2 safety coded signals between Safety Simplifiers 2.1.3...

  • Page 15: Redundant Relay Outputs

    Serial information for up to 32 internal signals from logic. This can be used between two different Safety Simplifier systems or between Safety Simplifier units and other PLCs to exchange non-safety information without the need of a common application program.

  • Page 16: Safety Precautions When Using Safety Simplifier

    (all contacts open). In a system of more than one Safety Simplifier, if a node loses communication from another node, it will consider all the safety information from that node as 0 (off, open, deenergised). It is important to design the system so that loss of communication results in the relevant outputs turning off (0V).
  • Page 17 To identify a Safety Simplifier each one has a unique serial number (32 bits) for the identification. The software for a system of 2 – 16 Safety Simplifier also has a network id based on all the Safety Simplifiers serial number in a system to have a safe communication.
  • Page 18 The safety Simplifier shall only be used in an environment which is in line with the environment conditions stated in the technical data. The Safety Simplifier has I/O and logic signals for safety and for non-safety. The safety functions are monitored and controlled by both processors.

  • Page 19: Safety Information Regarding I/O And Relay Outputs Of Safety Simplifier

    PFH-d value. For low number of operations as for E-stop a higher current can be switched by the relays during its lifetime. For high numbers of operations, the switched current should be lower. See chapter 4 Technical data Safety Simplifier (page 23) and chapter 9 Calculating PFH-d values (page 32).

  • Page 20: Solid-State Transistor Outputs

    Drawing shows 5 OSSD outputs with short circuit detection. Up to 14 OSSD outputs can be selected from a Safety Simplifier. A short circuit between any of these or to external voltage, is detected as an external fault. A short circuit to one or more outputs will set the output to 0 volt. Other outputs it the same function block will be set to OFF state.
  • Page 21 If there is a short circuit to an external voltage to an I/O this cannot be disconnected by Safety Simplifier. Safety Simplifier can only disconnect other outputs associated with the programmed function of the detected short circuit I/O or be programmed to go to fatal Note error.

  • Page 22: Safety Inputs

    1. OV 2. VDC (= Supply voltage) 3. Any of the A, B, C and D pulse trains or inverted within the same Safety Simplifier 4. E or inverted E-signal between Safety Simplifiers. Figure 3.3: SIL 3, PLe, Cat 4 redundant input...

  • Page 23: Technical Data Safety Simplifier

    4 Technical data Safety Simplifier Recommended fuse Fast Acting Fuse 2,5 A Power supply 10 - 30 VDC Current consumption except load on outputs 90 mA inactive mode, LED and relays not activated 110 mA active mode with LED, relays not activated...
  • Page 24 Radio frequency channel number 14 2470 MHz Radio frequency channel number 15 2475 MHz Radio frequency channel number 16 2480 MHz Technical data CAN card for Safety Simplifier Power supply 10 – 30 VDC Current consumption 0,02 A at 24 VDC Terminals (spring) 7 (max 0.5 mm...

  • Page 25: Safety Parameters According To 610508

    4.6E-09 2.12E-09 1.34E-09 7.76E-10 3.87E-09 λDD 5.97E+02 4.05E+02 1.89E+02 2.39E+02 5.03E+02 (10e-9)/h Diagnostic Continuous test interval Lifetime years Proof test years hours Type 99.5% 99.5% 99.5% 99.5% 99.5% faults SSP North AB 30/08/2018 Manual V2f...

  • Page 26: Dimensions And Mounting

    Bottom plastic part of Safety Simplifier showing two mounting holes for M5 screws with sealing and distances in between (see Table 5.1: Accessories for Safety Simplifier on page 28). Bottom plastic part of Safety Simplifier showing four mounting holes for M3 screws (see Table 5.1: Accessories for Safety Simplifier on page 28).
  • Page 27 The Safety Simplifier has four holes for mounting the bottom part directly on a surface. The holes are intended for M3 screws. In the middle of the Safety Simplifier box there are two prepared hole possibilities. Two holes can be made by pressing out the plastic parts with a screwdriver.
  • Page 28 2: Connection screw 3: Alignment pins Do not forget the O-ring sealing when joining two Safety Simplifier together with the connection screw, as shown in Figure 5.1. Make sure the alignment pins of the bottom Simplifier are aligned with the corresponding Note holes in the top Simplifier.

  • Page 29: Safety Simplifier Principle Layout

    6 Safety Simplifier principle layout Figure 5.1 The internal and external layout of Safety Simplifier Conductor cross section - single 0.08…0.5 mm - fine wire 0.08…0.5 mm - fine wired (wire sleeve with plastic collar) 0.08…0.5 mm - fine wired (wire sleeve without plastic collar) 0.25 mm...

  • Page 30: Electrical Installation

    (see technical data (6)). The Safety Simplifier is intended to be used in both 12V and 24V DC systems, however any voltage in the range 10-30V can be used. The accepted voltage range can be limited by settings in the software, if external sensors and equipment require a more limited voltage range.

  • Page 31: Making Io Connections

    7.1 Making IO Connections The IO clamping terminals on Safety Simplifier can be opened and closed by using a small flathead screwdriver (see Figure 7.1). Figure 7.1: Opening and closing an IO terminal Only use stranded wires when making connections to the terminals for the best connection quality.

  • Page 32: Bus Communication Via Radio And/Or Can-Bus

    The wireless card needs to be ordered from beginning for a Safety Simplifier. A CAN card can be mounted anytime. It is easy to connect a CAN card into a Safety Simplifier and it is fixed by pushing it into place and secured with a screw.
  • Page 33 0.2A Formula to count the PFH-d value for each safety channel: Single Safety Simplifier: PFH-d = Input + logic + output Multiple Safety Simplifiers with radio communication with repeating information: PFH-d = Input + n x logic + output (n = numbers of Safety Simplifiers in the system)

  • Page 34: Calculating Reaction Time

    Simplifier Manager. You can select between long or short response time for the used memories. Example An input in one Safety Simplifier is used via a global memory (GM) through radio/CAN for an output in one or more other safety Simplifiers.

  • Page 35: Electrical Diagrams For Recommended Connections Of Machines, Pb:s And Safety Devices

    11 Electrical diagrams for recommended connections of machines, PB:s and safety devices 11.1 E-stop, Combo PB with indication could be used for reset, open, start, stop etc 11.2 E-stop, Combo PB with indication for Reset, Open, Start and Stop, Selectors SSP North AB 30/08/2018 Manual V2f...

  • Page 36: Two-Hand Connection According To En 574

    11.3 Two-hand connection according to EN 574 11.4 Safety devices with OSSD outputs such as: RFID- sensor/Safety Gate sensor, Scanners, Light beams and light curtains SSP North AB 30/08/2018 Manual V2f...

  • Page 37: Safety Gate Limit Switches

    11.5 Safety Gate limit switches 11.6 Relay outputs for contactors with feedback for supervision/monitoring SSP North AB 30/08/2018 Manual V2f...

  • Page 38: Relay Outputs For Machines And Safety Devices

    11.7 Relay outputs for machines and safety devices 11.8 OSSD outputs for machines, contactors and safety devices SSP North AB 30/08/2018 Manual V2f...

  • Page 39: The Led Display Menu

    Pressing the button in the CAN menu cycles the menu back to the N menu (this means that to go from the I/O menu to the N menu, the button must be pressed 5 times to cycle through all the menus back to N). SSP North AB 30/08/2018 Manual V2f...

  • Page 40: Sub-Menus

    (i.e. the menu LED must be green). Short presses in a sub-menu changes the information displayed in that sub menu, for example in some menus to switch between looking at information from different nodes. SSP North AB 30/08/2018 Manual V2f...

  • Page 41: The Menus

    To see if the unit has connection via radio or CAN specifically, see the and CAN menu descriptions further down in this chapter. Figure 11.5 N level 2 SSP North AB 30/08/2018 Manual V2f...

  • Page 42: I/O (First Level)

    This means that the terminal itself does not have an error but is in an IO function that has an error. Figure 11.7 Terminal 2 and 4 are detecting external errors SSP North AB 30/08/2018 Manual V2f...

  • Page 43: I/O (Second Level)

    16, only one LED is on. If the voltage is close to the specified max/min voltage of the unit, the voltage will show in red instead of green. Figure 11.9 U level 1 SSP North AB 30/08/2018 Manual V2f...

  • Page 44: U (Second Level)

    LED indicates the number of the node being looked at. Figure 11.11 U level 3 The temperature is measured directly on the PCB which is warmer than the ambient temperature due to heat generated from different components. Note SSP North AB 30/08/2018 Manual V2f...

  • Page 45: M (First Level)

    A short blink on an LED indicates the number of the node being looked at. Figure 11.13 M level 2 SSP North AB 30/08/2018 Manual V2f...

  • Page 46: Radio) (First Level)

    LED indicates no connection. In Figure 11.15 the node has connection to nod 1 (which in this case is itself), it has poor connection to node 2, and no connection to node 3. Figure 11.15 Radio level 2 SSP North AB 30/08/2018 Manual V2f...

  • Page 47: Can (First Level)

    LED is turned off it means the memory is not configured in logic. In Figure 11.17 CAN memory 1 and 16 are high, and CAN memory 15 is low. Figure 11.17 CAN level 2 SSP North AB 30/08/2018 Manual V2f...

  • Page 48: Can (Third Level)

    The error can be decoded by looking at the display and seeing which LEDs are lighting up and finding the corresponding row in Table 11.1: Fatal error codes and descriptions on page 49. SSP North AB 30/08/2018 Manual V2f...
  • Page 49 15 & 16 & 1-8 0xC001 USER_FATAL_ERROR User fatal error See program triggered from logic. logic for this 0xC0FF unit. Table 11.1: Fatal error codes and descriptions SSP North AB 30/08/2018 Manual V2f...

  • Page 50: Configuration Mode

    When a unit enters configuration mode it is indicated on the display by lighting the bottom six menu LEDs, and LED 1, in orange, as shown in Figure 11.20. Figure 11.20 Display of a unit in configuration mode. SSP North AB 30/08/2018 Manual V2f...

  • Page 51: Led Display Quick Reference

    Green=high, the system. red=low. Shows which nodes this unit Shows the state of the CAN memories of is connected to via radio. the units in the system. Figure 11.22 Second level information. SSP North AB 30/08/2018 Manual V2f...

  • Page 52: Third Level Menu Information

    The sum of the LEDs shows the temperature (in °C) inside 1: 125kbit the enclosure of other nodes 2: 250kbit in the system. 5: 500kbit Figure 11.23 Third level information. SSP North AB 30/08/2018 Manual V2f...
  • Page 53 Software Using Simplifier Manager to design and program Safety Simplifier Systems SSP North AB 30/08/2018 Manual V2f...

  • Page 54: Introduction Of The Software Simplifier Manager

    Windows 7. 13.3 Installation The Safety Simplifier Manger is available to our website sspn.se. To install Simplifier Manager, double click the “SimplifierManagerSetup.msi” file. It guides the user through the installation process, where the user can select install location. The same process is used to update Simplifier Manager.

  • Page 55: User Interface Layout

    Here the different open documents are displayed. 13.4.1 The Main Menu The main menu is the standard Windows style menu found in the top left corner of the program. Here all different commands can be found. File SSP North AB 30/08/2018 Manual V2f...
  • Page 56 Person, Organisation, Description), and radio settings (Channel, Short Timeout, Long Timeout) can be changed. • Hardware Configuration Opens the Hardware Configuration document. Manage Passwords • Opens the Password Manager, where passwords can be set and changed. SSP North AB 30/08/2018 Manual V2f...
  • Page 57 Opens the Toolbox panel and sets focus to it. Online Overview • Opens the Online Overview Document. This can only be done when in Online Mode. Help From the Help menu the Manual can be opened. • Open Manual Opens this manual SSP North AB 30/08/2018 Manual V2f...

  • Page 58: The Toolbar

    Project→Change Settings. Note that when saving projects, the project name will be the file name, followed by the file extension “.simple”. Illustration 13.2: The Project Settings dialog, where the project settings can be changed. SSP North AB 30/08/2018 Manual V2f...

  • Page 59: Hardware Configuration

    Manager) and select Change Settings. Open the node logic by double clicking on the Simplifier, or right click and select Program. Illustration 13.3: The node settings dialog. Here the settings of the node can be changed. SSP North AB 30/08/2018 Manual V2f...

  • Page 60: The Logic Editor

    Clicking the rename page button brings up the dialog for changing the page name. Change the name of this page to Logic. Illustration 13.5 The rename page button. Illustration 13.6: The dialog for renaming pages. SSP North AB 30/08/2018 Manual V2f...

  • Page 61: Navigation In The Logic Graph

    E-Stop being pressed, which means the function must be reset with the push button if radio link is lost. The resulting function from input to outputs is up to SIL 3, PLe cat 4 according to ISO 61508 and ISO 13849-1. SSP North AB 30/08/2018 Manual V2f...

  • Page 62: Adding Function Blocks

    Any terminal between 1-14 can be used for any input function. For the E Stop, the Signal Type ON must also be defined for both terminals. Illustration 13.8: The changeable properties of the E Stop block. SSP North AB 30/08/2018 Manual V2f...

  • Page 63: Moving Blocks

    This makes the logic flow from left to right, where outputs from blocks on the left side are inputs to blocks to the right of them. Illustration 13.10: Example of a series of blocks connected with connections. SSP North AB 30/08/2018 Manual V2f...

  • Page 64: Removing Connections

    13.5.12 Removing Connections To remove a connection, right click on a connector and select ”remove connection”. Doing this on an output connector will delete all connections coming from that connector. SSP North AB 30/08/2018 Manual V2f...

  • Page 65: Final Steps

    Manager project file can be selected to load. If the project file is password protected, a dialog shows prompting the user to enter the password for the project. If the wrong password is entered, the project cannot be loaded. Passwords are discussed in chapter 13.9. SSP North AB 30/08/2018 Manual V2f...

  • Page 66: Expanding The Program

    To reference a memory, drag a Reference to the logic graph, and select the source memory that you want to reference to in the Inspector (see Illustration 13.15). SSP North AB 30/08/2018 Manual V2f...

  • Page 67: Adding Local Memories To The Program

    Do the same for the Push Button and name the memory “reset_button”. Illustration 13.15: Dragging a Memory to the graph. Illustration 13.17: Changing the memory name to e_stop Illustration 13.16: Connecting the E Stop to the memory. SSP North AB 30/08/2018 Manual V2f...

  • Page 68: Managing

    Connect the output of the memory reference to the “Input” input on the Single Reset block. Now drag another reference to the graph, set its Source Memory to the ”start_button” memory, and connect it to the “Reset” input (see Illustration 13.23) SSP North AB 30/08/2018 Manual V2f...
  • Page 69 The function is now equivalent to the function before, and compiling yields the same program checksum as before. Illustration 13.20: Pressing the "Cut" toolbar button. Illustration 13.22: Page 1 ("Input") Illustration 13.21: The finished reset and E-stop function. SSP North AB 30/08/2018 Manual V2f...

  • Page 70: Adding More Nodes

    2 and paste by pressing Ctrl+V, or by going to Edit→Paste. The pasted blocks will have the same settings as the copied blocks. Illustration 13.25: Copy the E Stop and the memory in node 1. SSP North AB 30/08/2018 Manual V2f...

  • Page 71: Sending Information Via Radio/Can

    GM02. For this memory it is also crucial to enable StartUp test. Again, these properties are discussed in detail in chapter 13.10.5.2. Illustration 13.27: Changing Memory Type to Global. SSP North AB 30/08/2018 Manual V2f...
  • Page 72 [N2.GM01], which means node 2, Global Memory 1. Illustration 13.28: The inspector after changing memory type to Global. Illustration 13.29: The logic in node 2. SSP North AB 30/08/2018 Manual V2f...
  • Page 73 Note the color and tag match the source memory. The function is now finished. Compile, download and go Online to see how the program works. Illustration 13.32: The finished logic in node 1 page 2 ("Logic"). SSP North AB 30/08/2018 Manual V2f...

  • Page 74: Online Mode

    Illustration 13.34: Online mode on an E Stop in ON state, and a push button in OFF state. The green line indicates that the signal is 1 (HIGH), and the red line indicate that the signal is 0 (LOW). SSP North AB 30/08/2018 Manual V2f...
  • Page 75 When using Global Memories in the logic a similar effect can be seen as well. The Global memory signals are received much faster than the internal signals (since the global memories are taken directly from the safety information, which has a much higher update frequency). When a Global SSP North AB 30/08/2018 Manual V2f...
  • Page 76 CAN only nodes (nodes without radio module) can only be seen when running online mode via USB on those nodes, or via a node that is connected via CAN to them. SSP North AB 30/08/2018...

  • Page 77: Downloading Programs

    Communication button in the toolbar. To open the Communication Window the project must be compiled. Before downloading, the Serial Number of every node in the system must be specified. Illustration 13.38 The communication window. All downloading and updating of Simplifiers is done from this view. SSP North AB 30/08/2018 Manual V2f...

  • Page 78: Entering Serial Numbers

    OK button displays a warning dialog. Clicking OK sets a password for the project. Note that the project must be saved to password protect the file. Illustration 13.40: The Password Manager dialog SSP North AB 30/08/2018 Manual V2f...

  • Page 79: Opening A Password Protected Project File

    The Text property sets the text that should be displayed in the block. Pressing the Enter key will create a line break in the text. SSP North AB 30/08/2018 Manual V2f...

  • Page 80: Designing Systems With Radio Or Can Communication

    The following chapters discusses how to program systems that communicate via radio or CAN, and the most common errors and how to avoid them. Illustration 13.43: An E Stop block with the comment property set to "E Stop button position 1". SSP North AB 30/08/2018 Manual V2f...

  • Page 81: Radio

    13.10.2 Radio The Safety Simplifier can communicate to other Safety Simplifiers via the optional radio module. The wireless protocol that is used is a special protocol similar to IEEE 802.15.4. This protocol shares the same band as Wi-Fi (2.4GHz), and has the same 16 channels as 802.15.4, numbered 11-26.
  • Page 82 1 must be in the network. Turning off node 1 will cause all nodes to stop repeating information from node one and go back to scanning mode. Turning off any other node only stops actions depending on the turned off node. SSP North AB 30/08/2018 Manual V2f...

  • Page 83: Selecting Radio Channel For Radio Communication

    Fi channel is 22MHz wide, covering several Simplifier channels. Note Figure 13.2: Overlap of Wi-Fi (IEEE 802.11) channels and IEEE 802.15.4 channels. Note how for example Wi-Fi channel 6 overlaps 802.15.4 channels 16 through 19 (which means Simplifier channels 6 through 9). SSP North AB 30/08/2018 Manual V2f...

  • Page 84: Designing Systems That Communicate Via Radio

    Figure 13.3: An example of a system with good radio quality. Blue circles indicate signal range, arrows indicate direct radio contact. Note that the recommended distance between nodes depend on walls and other obstructions between the nodes. SSP North AB 30/08/2018 Manual V2f...
  • Page 85 Figure 13.5: This system still relies on the repeating function, but it has redundancy. If node 3 stops transmitting radio, node 4 and 5 will still be able to hear node 1 and 2 via node 6. SSP North AB 30/08/2018 Manual V2f...

  • Page 86: Global And Can Memories

    Repeated information does not change this behaviour, as the timing information about all data is repeated as well. If a third node (C) sends data to node (B), and node (B) repeats it to node (A), node SSP North AB 30/08/2018...
  • Page 87 0 from the sender before it can set the memory to 1 again. This can be used for example for using Two-Hand devices via two Safety Simplifier. If radio contact is lost and regained while the Two-Hand device is actuated, the receiver will not start the machine again before the Two- Hand device is released and actuated again.

  • Page 88: Best Practices

    This can easily be done by using a reset function in that unit and to have start(reset) buttons in any of or in all the Safety Simplifier units. To give a new start is common requirement after communication or power failure.

  • Page 89: Input Functions

    13.11 Input Functions Input functions in Safety Simplifier are created in a slightly different way from most other PLCs. All input function blocks in Simplifier Manager (E Stop, Gate, Light Barrier, etc.) are based on the same underlying function. Understanding this function is crucial for understanding the different input blocks in Simplifier Manager.

  • Page 90: Input States

    Illustration 13.50: E Stop with a persistent two-channel channel error between terminal 1 and 3. error. The function cannot go from ERROR state to ON state, even though the correct signals are received on the terminals. SSP North AB 30/08/2018 Manual V2f...

  • Page 91: Input Signal Types

    This chapter describes all the properties that can be changed for an input function. A predefined input function block like E Stop may only use some of these properties. For the Advanced Input function all the properties are available for the user to change. SSP North AB 30/08/2018 Manual V2f...

  • Page 92: Enable Error Output

    In other cases, to use the start-up function depends on the installation and the risk analysis. For a stop function in a separate Safety Simplifier a start-up function with a reset can be required in case of loss and return of power/communication.

  • Page 93: Enable Zero Time

    Enabling special voltage enables the High Voltage and Low Voltage properties. These determine which voltage levels should be used as a logical high and low signal for this pin. The voltages are independent of the supply voltage. SSP North AB 30/08/2018 Manual V2f...

  • Page 94: Output Functions

    If the terminal reads a different signal from the one that it is trying to output, it means there is an external error (for example a short circuit), and the function will go to ERROR state. SSP North AB 30/08/2018...

  • Page 95: Error State

    Illustration 13.55: OSSD Output where the Reset ERROR input is enabled. The function will not leave ERROR state until a logical 1 is received on the Reset ERROR input after the external errors have disappeared. SSP North AB 30/08/2018 Manual V2f...

  • Page 96: Feedback

    The Advanced Output block can be used for creating a specialized output function. 1-8 channels can be used and configured freely. The output can use relay output and transistor outputs in the same function. Any signal types can be used for ON and OFF state. SSP North AB 30/08/2018 Manual V2f...

  • Page 97: Fatal Errors

    Creating loops in the logic can cause unintended behaviour of the logic and will cause higher maximum response times and different PFH-d values. Warning! SSP North AB 30/08/2018 Manual V2f...

  • Page 98: Unsafe And Safe Signals

    See chapter 14.9.1 on page 144 for a description on how to use the block. Illustration 13.56: A safe and an unsafe signal affecting an OR block, making the block unsafe (indicated by the block becoming grey, and its output becoming unsafe). SSP North AB 30/08/2018 Manual V2f...

  • Page 99: Serial Communication For Status Information

    13.15 Serial Communication for status information The Safety Simplifier comes with two function blocks; the Serial Encoder and the Serial Decoder, for synchronous serial communication via the I/O terminals on the Simplifier. Up to 32 signals can be sent and received with each block. The blocks must be configured correctly to encode and decode the information.

  • Page 100: Format

    Half Bit Duration This is how long the clock signal is high for each bit sent out. Input Count This sets how many signals will be encoded. Up to 32 signals can be encoded. SSP North AB 30/08/2018 Manual V2f...

  • Page 101: Serial Decoding

    Serial Encoder. Illustration 13.58: An example of how to connect a Serial Decoder in Simplifier Manager. The Data and Clock signals are externally connected to the data and clock outputs from the sending unit. SSP North AB 30/08/2018 Manual V2f...

  • Page 102: Serial Communication Via I/O Terminals

    Clock output terminal. Illustration 13.61: How to externally connect to simplifiers that communicate serial information via IO Terminals. Note that the terminal numbers are arbitrary. Any transistor IO can be used. SSP North AB 30/08/2018 Manual V2f...

  • Page 103: Configuration For Communication With Other Plcs

    13.15.4.3 Function blocks for communication with PLCs Function blocks for serial communication with other PLC systems (for example Siemens, Beckhoff and Rockwell) are available for download on our homepage. SSP North AB 30/08/2018 Manual V2f...

  • Page 104: Function Block Reference

    There are two types of internal signals that can be used: safe and unsafe. Safe signals are coloured solid yellow and can be used in safety functions. Unsafe signals are dotted white and must never be used for safety functions. SSP North AB 30/08/2018 Manual V2f...

  • Page 105: Inputs

    • This output is 1 (HIGH) when the function is in ERROR state. Properties • Comment Changes the comment text above this block. • Enable ERROR Output Enables or disables the ERROR output connector. SSP North AB 30/08/2018 Manual V2f...
  • Page 106 The pin number to use for this pin input. Signal Type ON • Which signal type should be considered as ON state. Signal Type OFF • Which signal type should be considered as OFF state. SSP North AB 30/08/2018 Manual V2f...

  • Page 107: Status Input

    This output turns on when a logical HIGH analogue signal is received on the configured pin. Note that this output is an unsafe signal, and thus cannot affect any safety outputs. Properties Comment • Changes the comment text above this block. • Terminal Number The pin number to use. SSP North AB 30/08/2018 Manual V2f...

  • Page 108: Selector Switch

    ON state directly at start-up (power on) but needs a valid OFF state first. • Input Type Changes which input type this block is (Single NO, Double NO, Double NC/NO) SSP North AB 30/08/2018 Manual V2f...

  • Page 109: Advanced Input

    This output is 1 (HIGH) when the function is in ERROR state, and 0 (LOW) if the function is in ON or OFF state. Properties Comment • Changes the comment text above this block. Enable ERROR Output • Enables the ERROR output connector. SSP North AB 30/08/2018 Manual V2f...
  • Page 110 The pin number to use for this pin input. Signal Type ON • Which signal type should be considered as ON state. Signal Type OFF • Which signal type should be considered as OFF state. SSP North AB 30/08/2018 Manual V2f...

  • Page 111: Door Sensor

    ON state directly at start-up, (power on) but needs a valid OFF state first. Filter ON (ms) • Filters the 0→1 flank of pins, so they must be in ON state for longer than this time. SSP North AB 30/08/2018 Manual V2f...

  • Page 112: Light Barrier

    Changes the comment text above this block. Enable ERROR Output • Enables the ERROR output connector. StartUp Test • This property enables or disables the StartUp test check. If StartUp Test is enabled, the SSP North AB 30/08/2018 Manual V2f...
  • Page 113 ON state directly at start-up, (power on) but needs a valid OFF state first. • Filter ON (ms) Filters the 0→1 flank of pins, so they must be in ON state for longer than this time. SSP North AB 30/08/2018 Manual V2f...

  • Page 114: E Stop

    ON state directly at start-up (power on) but needs a valid OFF state first. Input Type • Changes which input type this block is (Single NC, Double NC, Double NC/NO) SSP North AB 30/08/2018 Manual V2f...

  • Page 115: Push Button

    This filters the 0→1 flank of the input for the specified amount. This means the pin must be high for longer than the specified Filter ON time for the function to go to ON state. • Terminal Number Selects the pin that should be used. SSP North AB 30/08/2018 Manual V2f...

  • Page 116: Output

    • Enables the ERROR output. • Enable Feedback Enables the Feedback input. Enable Error Reset • Enables the Error Reset input. Channel Count • Specifies how many terminals should be used in this function. SSP North AB 30/08/2018 Manual V2f...

  • Page 117: Ossd Output

    • Enables the ERROR output. Enable Feedback • Enables the Feedback input. Enable Error Reset • Enables the Error Reset input. Channel Count • Specifies how many terminals should be used in this function. SSP North AB 30/08/2018 Manual V2f...

  • Page 118: Relay Output

    Description This block can be used to configure a relay output on an S16 unit. Technical data for relays can be found in chapter 4 Technical data Safety Simplifier on page 23. Pins: 1 (relay terminal 15 or 16) Electrical diagrams for IO connections can be found in chapter 11.6 (page 37) and chapter 11.7 (page 38).

  • Page 119: Status Output

    A logical 1 (HIGH) signal on this input turns the output ON, outputting a constantly high signal (VDC). Outputs None. Properties • Comment Changes the comment text above this block. Terminal Number • Which terminal to use. SSP North AB 30/08/2018 Manual V2f...

  • Page 120: Memory

    1 again. Reaction Time • This specifies if the references to this memory should have long or short timeout. The timeout values are specified in the project settings. SSP North AB 30/08/2018 Manual V2f...

  • Page 121: Reference

    Some communication delays occur when referencing memories from other nodes. Properties Comment • Changes the comment text above this block. • Source Memory Selects which memory source to reference. See chapter 3 Safety Precautions when using Safety Simplifier on page 16. Note SSP North AB 30/08/2018 Manual V2f...

  • Page 122: Function

    The input signal to delay the 1→0 flank of. Outputs • Output The delayed signal. Properties Comment • Changes the comment text above this block. Delay OFF (ms) • The time in milliseconds to delay the 1→0 flank of the input signal. SSP North AB 30/08/2018 Manual V2f...

  • Page 123: Delay On

    The input signal to delay the 0→1 flank of. Outputs Output • The delayed signal. Properties Comment • Changes the comment text above this block. Delay ON (ms) • The time in milliseconds to delay the 0→1 flank of the input signal. SSP North AB 30/08/2018 Manual V2f...

  • Page 124: Single Reset

    The lamp output outputs a standard reset push button indication signal (ca 1Hz when inputs is high), that can be connected directly to the Indication input of a push button block. Diagram SSP North AB 30/08/2018 Manual V2f...

  • Page 125: Sequence Reset

    Inputs Input • This is the input signal that needs to be reset. • Reset Inside 0-8 These inputs allow the Input signal to go low during reset operation. SSP North AB 30/08/2018 Manual V2f...

  • Page 126: Stepping

    Specifies how many buttons should be outside (minimum 1, maximum 8). The function always requires a button outside to finish the reset operation (the reset operation cannot be finished if there is someone inside, so the last button must be outside). 14.4.5 Stepping Block Diagram Description SSP North AB 30/08/2018 Manual V2f...

  • Page 127: Internal Input

    See chapter 13.11 Input Functions on page 89, and chapter 14.1.4 Advanced Input on page 109, for descriptions on how the input function works. Note SSP North AB 30/08/2018 Manual V2f...
  • Page 128 Zero Time (ms) If enabled, requires all the pins to be in OFF state for this time before the function can go to ON state. Terminal Count • Sets the terminal count between 1 and 8. SSP North AB 30/08/2018 Manual V2f...

  • Page 129: Logic

    This block inverts a signal. Truth table Input Output Diagrams Inputs • Input The signal to invert. Outputs Output • The inverted signal. Properties Comment • Changes the comment text above this block. 14.5.2 AND Block Diagram SSP North AB 30/08/2018 Manual V2f...

  • Page 130: Nand

    This sets how many inputs should be used. 2-16 can be configured. 14.5.3 NAND Block Diagram Description This block performs the boolean NAND function between its inputs and outputs the result on the output. Truth table for 8 inputs SSP North AB 30/08/2018 Manual V2f...
  • Page 131 Changes the comment text above this block. Boolean Function Type • This changes the function to another boolean function (AND, NAND, OR, NOR, XOR, or XNOR). Inputs • This sets how many inputs should be used. 2-16 can be configured. SSP North AB 30/08/2018 Manual V2f...
  • Page 132 Changes the comment text above this block. • Boolean Function Type This changes the function to another boolean function (AND, NAND, OR, NOR, XOR, or XNOR). Inputs • This sets how many inputs should be used. 2-16 can be configured. SSP North AB 30/08/2018 Manual V2f...

  • Page 133: Nor

    Changes the comment text above this block. • Boolean Function Type This changes the function to another boolean function (AND, NAND, OR, NOR, XOR, or XNOR). Inputs • This sets how many inputs should be used. 2-16 can be configured. SSP North AB 30/08/2018 Manual V2f...

  • Page 134: Xor

    Changes the comment text above this block. • Boolean Function Type This changes the function to another boolean function (AND, NAND, OR, NOR, XOR, or XNOR). Inputs • This sets how many inputs should be used. 2-16 can be configured. SSP North AB 30/08/2018 Manual V2f...

  • Page 135: Xnor

    Changes the comment text above this block. • Boolean Function Type This changes the function to another boolean function (AND, NAND, OR, NOR, XOR, or XNOR). Inputs • This sets how many inputs should be used. 2-16 can be configured. SSP North AB 30/08/2018 Manual V2f...

  • Page 136: Latches

    A high flank (0→1) on this input toggles the value of the output Q. Outputs • Toggles its value when a high flank is received on T. Properties Comment • Changes the comment text above this block. SSP North AB 30/08/2018 Manual V2f...

  • Page 137: Sr Latch

    Outputs • This output is 1 if S is 1, 0 if R is 1, and 0 if both R and S are 1. Properties Comment • Changes the comment text above this block. SSP North AB 30/08/2018 Manual V2f...

  • Page 138: Signal Generators

    Description This block generates a constant 0 (LOW) signal on its output. Inputs None Outputs • The output outputs a constant 0 (LOW) signal. Properties • Comment Changes the comment text above this block. SSP North AB 30/08/2018 Manual V2f...

  • Page 139: Square Wave

    Enables or disables the Enable input. • Time High (ms) Specifies how long the square wave should be high for. • Time Low (ms) Specifies how long the square wave should be low for. 14.7.4 1Hz Blink Block Diagram SSP North AB 30/08/2018 Manual V2f...

  • Page 140: 5Hz Blink

    Outputs 0 (LOW) if Enable is 0. Outputs a square wave if Enable is 1. Properties • Comment Changes the comment text above this block. • Enable Activate Input Enables or disables the Enable input. 14.7.5 5Hz Blink Block Diagram Description SSP North AB 30/08/2018 Manual V2f...
  • Page 141 Outputs 0 (LOW) if Enable is 0. Outputs a square wave if Enable is 1. Properties Comment • Changes the comment text above this block. Enable Activate Input • Enables or disables the Enable input. SSP North AB 30/08/2018 Manual V2f...

  • Page 142: Debug

    Properties Comment • Changes the comment text above this block. Error Code • The error code that should be displayed as binary on the LED display. Setting this to 0 disables the fatal error. SSP North AB 30/08/2018 Manual V2f...

  • Page 143: Can Ok

    Outputs a 1 (HIGH) signal if the node has radio OR CAN connection to the selected node. Properties Comment • Changes the comment text above this block. • To Node Number The node to check the Link connection to. SSP North AB 30/08/2018 Manual V2f...

  • Page 144: Advanced

    This output is 1 when both inputs are 1. Properties • Comment Changes the comment text above this block. 14.10 Non-Safety All blocks in the non-safety category must only be used for status and information purposes. Warning! 14.10.1 Serial Encoder Block Diagram SSP North AB 30/08/2018 Manual V2f...
  • Page 145 Half Bit Duration (ms) • The time that the clock signal is high for each bit sent. Inputs • The number of signals to be encoded. This sets how many input signals are on the block. SSP North AB 30/08/2018 Manual V2f...

  • Page 146: Serial Decoder

    Changes the comment text above this block. Intercharacter Duration (ms) • This time specifies how long the pause between packets is. Outputs • The number of signals to decode. This sets how many output signals are on the block. SSP North AB 30/08/2018 Manual V2f...

  • Page 147: Miscellaneous

    This block can be used to put text comments in the logic graph. It does not affect the compiled logic. Inputs None Outputs • None. Properties Text • Changes the comment text. Text Size • Changes the comment text size. SSP North AB 30/08/2018 Manual V2f...
  • Page 148 Contact Safety System Products North AB www.sspnorth.se Info@sspnorth.se Tullkammarvägen 14 S-439 31 Onsala Sweden SSP North AB 30/08/2018 Manual V2f...

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