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PRECISION DIGITAL PROVU Series Instruction Manual

Modbus scanner
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Instruction Manual
 Modbus® RTU Master, Slave, or Snooper Mode
 Poll and Display up to 16 Process Variables
 Two (2) 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs
 Math functions Capabilities
 Isolated 24 VDC @ 200 mA Transmitter Power Supply
 Multi-Pump Alternation Control
 Signal Input Conditioning for Flow & Round Horizontal Tank
 Programmable Displays & Function Keys
 32-Point, Square Root, or Exponential Linearization
 Up to Three 4-20 mA Analog Outputs Available
 Dual-Line Display
 NEMA 4X and IP65 Rated Front Panel
 UL Listed & CE Marked
 Display Features 0.6" & 0.46" Digits
 Six Full Digits on Each Line
 Superluminous Sunlight Readable Display
 Free USB Programming Software & Cable
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
PD6080/PD6081 Modbus
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Modbus Scanner
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  • Page 1  Display Features 0.6" & 0.46" Digits  Six Full Digits on Each Line  Superluminous Sunlight Readable Display  Free USB Programming Software & Cable PRECISION DIGITAL CORPORATION 233 South Street • Hopkinton MA 01748 USA Tel (800) 343-1001 • Fax (508) 655-8990 www.predig.com...
  • Page 2 Precision Digital Corporation warrants this product against defects in material or workmanship for the specified period under “Specifications” from the date of shipment from the factory. Precision Digital’s liability under this limited warranty shall not exceed the purchase value, repair, or replacement of the defective unit.

  • Page 3: Table Of Contents

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Table of Contents Table of Contents ----------------------------------------- 3 Setting Up the Process Variables (PVs) (pv setup)   ----------------------------------------------------------------- 32   Table of Figures ------------------------------------------- 4   Setting the Display Decimal Point (disp. d p) -------- 32  ...

  • Page 4: Table Of Figures

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Rounding Feature (round) ------------------------------ 57   Diagnostics Menu (diag) ---------------------------------- 72   Select Menu (SELect) ------------------------------------ 57   Determining Software Version ------------------------- 72   Low-Flow Cutoff (CutofF) ------------------------------- 65   Reset Scanner to Factory Defaults ------------------- 72  ...

  • Page 5: Introduction

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Introduction The P PD6080/6081 Super Snooper Modbus Scanner is a multi-purpose, easy-to-use ® ® digital scanner that can be programmed as a Modbus RTU Master, Slave, or Snooper. It is capable of scanning up to 16 variables generated by any Modbus device, which makes it ideal for tank level monitoring and control.

  • Page 6: Ordering Information

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Ordering Information SunBright Decimal Display Models 's SunBright display models have an extraordinarily bright LED display. They are perfect for applications where the scanner is in direct sunlight or in applications where visibility may be impaired by smoke, fog, dust, or distance.

  • Page 7: Specifications

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Specifications Except where noted all specifications apply to operation at +25°C. Operating Modes Communicati Displays “brEAK” after the Master has polled Master Processes data read from Modbus RTU on Break the slave device 3 times and the response slave devices.

  • Page 8: Math Functions

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Math Functions Max/Min Max/min readings are stored until reset by Display the user or when power to the scanner is Name Math Operation (Examples) Setting turned off. User can reset by front panel (P = Adder, F = Factor) pushbuttons, digital input, or via Modbus Addition...

  • Page 9: Relays

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Relays Communication Programmable mA output when a slave Break device does not reply within the response Rating 2 or 4 SPDT (Form C) internal and/or 4 timeout. SPST (Form A) external; rated 3 A @ 30 Accuracy ±...

  • Page 10: Compliance Information

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Compliance Information Safety UL & c-UL LISTED USA & Canada UL 508 Industrial Control Equipment UL FILE NUMBER E160849 FRONT PANEL UL Type 4X, NEMA 4X, IP65; panel gasket provided LOW VOLTAGE EN 61010-1:2010 DIRECTIVE Safety requirements for measurement, control, and laboratory use Electromagnetic Compatibility...

  • Page 11: Safety Information

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Safety Information CAUTION: Read complete instructions prior to WARNING: Risk of electric shock or installation and operation of the scanner. personal injury. Hazardous voltages exist within enclosure. Installation and service should be performed only by trained service personnel. Warning! Installation There is no need to remove the scanner from its case to complete the installation, wiring, and setup...

  • Page 12: Mounting Dimensions

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Mounting Dimensions Figure 2. Scanner Dimensions - Side View Figure 3. Scanner Dimensions - Top View...

  • Page 13: Transmitter Supply Voltage Selection (P+, P-)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Transmitter Supply Voltage Selection (P+, P-) All scanners, including models equipped with the 12-24 VDC power option, are shipped from the factory configured to provide 24 VDC power for the transmitter or sensor. If the transmitter requires 5 or 10 VDC excitation, the internal jumper J4 must be configured accordingly.

  • Page 14: Connections

    The connectors’ label, affixed to the scanner, shows the location of all connectors available with requested configuration. Do not connect any equipment other than Precision Digital’s expansion modules, cables, or scanners to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the scanner.

  • Page 15: Serial Communications Connection

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Serial Communications Connection Serial communications connection is made to an RJ45 connector labeled M-LINK on the back of the scanner. The Modbus Scanner uses the PDA1485 RS-485 adapter to interface with other Modbus devices and the PDA8485 RS-485 to USB converter or PDA7485 RS-232 to RS-485 converter to connect to a PC.

  • Page 16: Serial Communications Connections Table

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Serial Communications Connections Table The table below shows the terminal connections for 3-wire RS-485 devices. PD6080/6081 PD6080/6081 Modbus Modbus Master Snooper Connection Slave Meter Level Gauge PDA1485 PDA1485 PDA8485 RS-485 RS-485 RS-485 Adapter RS-485 Adapter RS-485 to USB A (-)

  • Page 17: Relay Connections

    Figure 12. Low Voltage DC Loads Protection RC Networks Available from Precision Digital RC networks are available from Precision Digital and should be applied to each relay contact switching an inductive load. Part number: PDX6901. Note: Relays are de-rated to 1/14 HP (50 watts) with an inductive load.

  • Page 18: 4-20 Ma Output Connections

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual 4-20 mA Output Connections Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT. The 4-20 mA output may be powered internally or from an external power supply. 24 V 24 V MA OUT...

  • Page 19: Analog Input Signal Connections

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Analog Input Signal Connections Analog input signal connections are made to a nine-terminal connector labeled SIGNAL on the back of the scanner. The COM (common) terminals are the return for the 4-20 mA and the 10 V input signals. The two COM terminals connect to the same common return, and are not isolated.

  • Page 20: Setup And Programming

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Setup and Programming The analog inputs of the scanner are factory calibrated prior to shipment to read in milliamps and volts, depending on the input selection. The calibration equipment is certified to NIST standards. Overview There are no jumpers involved in the scanner setup procedure.

  • Page 21: Display Functions & Messages

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Display Functions & Messages The following table shows the main menu functions and messages in the order they appear in the menu. Display Parameter Action/Setting Display Parameter Action/Setting Description Description Response Time Enter the time allowed t-resp mode Mode...
  • Page 22 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Description Description 2413 Byte Order Select byte-swapped Ft In 8 Eighths Eighth Inch Format big-endian byte order. Ft In 16 Sixteenths Sixteenth Inch Format Not available for Short. Dec.
  • Page 23 ® PD6080/PD6081 Modbus Scanner Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Description Description act 1 Relay Action 1- Assign Relay Action for Dis 1 Display 1 Program the first Display relays 1-8 value for the Analog Output. Automatic Set relay for automatic Auto reset Output 1...

  • Page 24: Scanview Software

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual ScanView Software The meter can also be programmed using the PC-based ScanView software included with the meter. This software is can be installed on any Microsoft® Windows® (XP/Vista/7/8/10) computer by connecting to the meter’s onboard USB. The meter is powered by the USB connection, so there is no need to wire anything prior to programming the meter, though USB is intended only for meter configuration.

  • Page 25: Menu Navigation Tip

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Menu Navigation Tip  The Up arrow scrolls through the sub-menus within a menu, after the last item it returns to the top menu. Press Enter to step into the menu again or press Up arrow to move to the next menu. Note: There are some exceptions (e.g.

  • Page 26: Serial Communications (Serial)

    To communicate with a computer or other data terminal equipment, an RS-485 to USB or RS-485 to RS-232 converter is required; see Ordering Information on page 6 for details. Do not connect any equipment other than Precision Digital’s expansion modules, cables, or scanners to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the scanner.

  • Page 27: Scanner Mode Selection

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Scanner Mode Selection Operating Modes (nmode) The Mode menu is used to select how the scanner is to function: 1. Master: Reads a slave device, scales the data from it, displays the result, and operates the relays and 4-20 mA output.

  • Page 28: Master Mode (Nmastr)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Master Mode (nmastr) The Master mode contains the PV Number, Poll Time, and Response Timeout menus. PV Number: Enable/disable PVs, select slave ID, function code, register number, data type & byte order. Poll Time: Enter the time interval to poll the slave devices selected. Response timeout: Enter the time interval to wait after three polls before reporting it as a Communications Break.

  • Page 29: Snooper Mode (Snoopr)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Snooper Mode (Snoopr) The Snooper mode is used to listen to data being transmitted on the bus. Multiple Snoopers can be connected to the RS-485 bus and display any process variable. The same process variable can be displayed in multiple locations.

  • Page 30: How To Select 5 Or 6-Digit Registers

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual How to Select 5 or 6-Digit Registers In Master or Snooper Mode, it is possible to select either a five-digit or a six-digit Register Number. Once the operator has enabled a PV, entered a Slave ID, and chosen a Function Code, the scanner will arrive at the Register Number menu (reg.

  • Page 31: Setting Up The Scanner (Setup)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Setting Up the Scanner (setup) The Setup menu is used to select: 1. PV Setup a. PV Tags b. PV Units c. Format: Decimal point or Feet & Inches d. Decimal Point e. Scale input data 2.

  • Page 32: Setting Up The Process Variables (Pvs) (Pv Setup)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Setting Up the Process Variables (PVs) (pv setup) Enter the PV Setup menu to set up all the criteria associated with each enabled PV. Once you have selected the desired PV, you can select parameters for each. These include tag, units, format, display decimal point, float decimal point (resolution), and scaling of the input data.

  • Page 33: Scaling The Pv Display Values (Scale)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Scaling the PV Display Values (sCale) The data that the scanner receives can be scaled to display in engineering units. Input 1 must be less than Input 2, Input 2 must be less than Input 3, etc. (known as monotonic values). Press Enter to save the changes or Menu to exit without saving.

  • Page 34: Setting Up The Displays (Dsplay Setup)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Setting Up the Displays (dsplay setup) Display Line 1 Parameters (Line 1 dsplay) The top display (line 1) can be programmed to display any of the following: Display Parameter Setting Display Parameter Setting Description Description Display Set Points...

  • Page 35: Display Line 1 Menu (Line 1 Dsplay)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Display Line 1 Menu (Line 1 dsplay) Line 2 Setup continues from here. Continues to Relay Setup. Continues to Line 2 Setup. Continues to Line 2 Setup. Continues to Line 2 Setup. Note: For Tag-PVn and Tag-PVn-U, the default settings for PVs are 1,3,5,&7, followed by two underscores, which represent empty PVs.

  • Page 36: Display Line 2 Menu (Line 2 Dsplay)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Display Line 2 Menu (Line 2 dsplay) Continues to Display Intensity Setup. Continues to Display Intensity Setup. Continues to Display Intensity Setup. Continues to Display Intensity Setup. Note: For Tag-PVn and Tag-PVn-U, the default settings for PVs are 2,4,6,& 8, followed by two underscores, which represent empty PVs.

  • Page 37: Setting The Tags (Tag) & Units (Units)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Setting the Tags (tAg) & Units (units) Each PV can be setup with its own tag and units. See the flow charts on the previous pages to access the display menu to show the tag or toggling tag & units. The engineering units and custom tags can be set using the following 7-segment character set: Display Character...
  • Page 38 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual The following table shows the system setup for the MTS M-Series gauge, one PD6080 Master, and one PD6080 Snooper: Parameter Parameter PD6080 PD6080 Description/ PD6080 PD6080 Description/ Master Snooper Comment Master Snooper Comment Byte 1234 Mode...
  • Page 39 ® PD6080/PD6081 Modbus Scanner Instruction Manual Parameter PD6080 PD6080 Description/ Parameter PD6080 PD6080 Description/ Master Snooper Comment Master Snooper Comment Byte 1234 Byte 1234 1234 1234 Order Order PV12 Slave ID Slave ID Function Function Code Code Register Tank 3 Register Tank 4 30017...

  • Page 40: Application Example 2

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Application Example 2 In this application we have a system consisting of (4) MTS M-Series multivariable tank level gauges connected to (2) PD6081s displaying Product Level, Interface Level, and Average Temperature. One of the Modbus Scanners is located next to the tanks and the other is located in the control room. The display readout is shown in sixteenths of an inch.

  • Page 41: Setting The Relay Operation (Relay)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Setting the Relay Operation (relay) This menu is used to set up the assignment and operation of the relays. Relay Setup Menu (relay setup) Up Arrow cycles through all available relays. Up Arrow cycles through all enabled PVs and multiple PVs.

  • Page 42: Setting The Relay Action (Act 1)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Setting the Relay Action (act 1) Operation of the relays is Use Up Arrow relay 1 relay 1 to scroll through programmed in the Action menu. the menu The relays may be set up for any of relay relay choices below.

  • Page 43: Relay Action For Communications Break (Break)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Relay Action for Communications Break (break) The Scanner will poll the slave device three times before reporting a communications break condition. After the third failure, the Response Timeout timer starts and will determine the actual time to report a PV in break condition.

  • Page 44: High Alarm With Fail-Safe Operation (Set > Reset)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual High Alarm with Fail-Safe Operation Low Alarm with Fail-Safe Operation (Set > Reset) (Set < Reset) Note: Relay coil is energized in non-alarm Note: Relay coil is energized in non-alarm condition. In case of power failure, relay condition.

  • Page 45: Relay Sampling Operation

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Relay Sampling Operation Input Reset Sample Sample Sample Time Time Time Relay When the signal crosses the set point, the relay trips and the sample time starts. After the sample time has elapsed, the relay resets. The cycle repeats every time the set point is crossed, going up for high alarms and going down for low alarms.

  • Page 46: Signal Loss Or Loop Break Relay Operation

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Signal Loss or Loop Break Relay Operation The following graph shows the loop break relay operation for a high alarm relay. Input Reset de-energized energized Relay Loop Break = Ignore Relay Loop Break = Off Relay Loop Break = On When the scanner detects a break in the 4-20 mA loop, the relay will go to one of the following selected...

  • Page 47: Relay Operation Details

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Relay Operation Details Overview The relay capabilities of the scanner expand its usefulness beyond simple indication to provide users with alarm and control functions. These capabilities include front panel alarm status LEDs, as well as either 2 or 4 optional internal relays, and/or 4 external relays via expansion modules.

  • Page 48: Latching And Non-Latching Relay Operation

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Latching and Non-Latching Relay Operation The relays can be set up for latching (manual reset) or Relay terminology for following tables non-latching (automatic reset) operation. Terminology Relay Condition Alarm (Tripped) The On and Off terminology does not refer to the status of Normal (Reset) the relay’s coil, which depends on the fail-safe mode Acknowledged...

  • Page 49: Acknowledging Relays

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Acknowledging Relays There are two ways to acknowledge relays programmed for manual reset: 1. Via the programmable F4 digital input assigned to ACK (Default) and connected to a normally open pushbutton wired across F4 and COM. 2.

  • Page 50: Setting Up The Interlock Relay (Force On) Feature

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Setting Up the Interlock Relay (Force On) Feature Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature: 1. Access the Setup – Relay – Action menu and set the action to off. 2.

  • Page 51: Scaling The 4-20 Ma Analog Output (Aout)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Scaling the 4-20 mA Analog Output (Aout) The 4-20 mA analog outputs can be scaled to provide a 4-20 mA signal for any display range selected. The Analog Outputs can be mapped to PVs or Math Channels. To select the channel and source assignments the analog outputs are assigned to, see Analog Output Source Programming on page 66.

  • Page 52: Setting Up The Password (Pass)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Setting Up the Password (pass) The Password menu is used for programming three levels of security to prevent unauthorized changes to the programmed parameter settings. Pass 1: Allows use of function keys and digital inputs Pass 2: Allows use of function keys, digital inputs and editing set/reset points Pass 3: Restricts all programming, function keys, and digital inputs.

  • Page 53: Advanced Features Menu

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Advanced Features Menu To simplify the setup process, functions not needed for most applications are located in the Advanced Features menu: 1. Scan Mode: Auto or manual; Go on alarm or stop on alarm 2.

  • Page 54: Advanced Features Menu & Display Messages

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Advanced Features Menu & Display Messages Display Parameter Action/Setting Display Parameter Action/Setting Display 2 Program display 2 value (up Dis 2 sCan Scan Enter Scan menu to 32 points for PV1 & PV2) mode Scan Mode Select Auto or Manual...
  • Page 55 ® PD6080/PD6081 Modbus Scanner Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Pv 2 PV 2 Cutoff Program Cutoff Value for disabl Disable Disable PV 2 Contrl Control Control menu Analog Output Enter Analog Output aoutPr DI 1-8 *Digital Inputs 1-8 dI 1* Program Programmable...

  • Page 56: Scan Function (Scan)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Scan Function (SCan) The Scan menu is used to program the PV scan mode and the scanner’s behavior on alarm condition. The operator is able to scan automatically based on a time parameter, or scan manually with front panel keys or digital inputs.

  • Page 57: Noise Filter (Filter)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Noise Filter (filter) Most applications do not require changing this parameter. It is intended to help attain a steady display with unsteady (noisy) input data. The field selectable noise filter averages any minor or quick changes in the input data and displays the reading with greater stability.
  • Page 58 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Input Data Conditioning Function Menu (Functn) The Function menu is used to select the input-to-output transfer function applied to the input data: linear, square root, programmable exponent, or round horizontal tank volume calculation. Multi-point linearization (for PV1 and PV2) is part of the linear function selection.
  • Page 59 ® PD6080/PD6081 Modbus Scanner Instruction Manual Square Root Function Menu (Square) The square root function is used to calculate flow measured with a differential pressure transmitter. The flow rate is proportional to the square root of the differential pressure. Scale the scanner so that the low input signal (e.g.
  • Page 60 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Round Horizontal Tank Function Menu (rht) This function is used to calculate volume in a round horizontal tank with flat ends. The volume is calculated based on the diameter and length of the tank. The tank’s dimensions can be entered in inches or centimeters;...
  • Page 61 ® PD6080/PD6081 Modbus Scanner Instruction Manual Math Functions (math) The Math menu is used to select the math function that will determine the channels’ C1-C4 value. These math functions are applied to PVs and other math channels. The results are displayed by selecting Display Channel C (d Ch C) in the Display menu.
  • Page 62 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Math Function Menu (math) Main Math Channels: Each PV is represented by an underscore. There are 6 lines shown and ten lines hidden. Enter any or all PVs without leaving a space. Any spaces will signal the meter to end the equation there.
  • Page 63 ® PD6080/PD6081 Modbus Scanner Instruction Manual Sum Menu (sunm) Difference Menu (dif) Difference Absolute Menu (difAbS) Average Menu (avg) Multiplication Menu (nmulti) Divide Menu (divide) Only two PVs at a time will be used for this function.
  • Page 64 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Maximum PV Menu (Hi-pv) Minimum PV Menu (Lo-pv) Draw Menu (drauw) Weighted Average Menu (uwAvg) Only two PVs at a time will be used for this Only two PVs at a time will be used for this function.

  • Page 65: Low-Flow Cutoff (Cutoff)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Low-Flow Cutoff (CutofF) The low-flow cutoff feature allows the scanner to be programmed so that the often unsteady output from a differential pressure transmitter, at low flow rates, always displays zero on the scanner. The cutoff value may be programmed from 0 to 999999.

  • Page 66: Analog Output Source Programming (Aoutpr)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Analog Output Source Programming (aoutpr) The 4-20 mA analog outputs can be programmed for source of data, overrange and underrange, absolute maximum and minimum output, and communications break values. They can also be recalibrated. Underrange All enabled PVs 1-16 &...

  • Page 67: User Menu (User)

    ® PD6080/PD6081 Modbus Scanner Instruction Manual User Menu (user) The User menu allows the user to assign the front panel function keys F1, F2, and F3, the digital input F4 (a digital input located on the signal input connector), and up to eight additional digital inputs to access most of the menus or to activate certain functions immediately (e.g.

  • Page 68: Digital Input Menu (Di 1)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Digital Input Menu (dI 1) If installed, there are up to 8 digital inputs and outputs. There are up to eight Set Points available. Digital Output Menu (dO 1) If installed, there are up to 8 digital inputs and outputs.

  • Page 69: 4-20 Ma Output Calibration

    ® PD6080/PD6081 Modbus Scanner Instruction Manual 4-20 mA Output Calibration  There is no need to recalibrate the 4-20 mA output The 4-20 mA output can be when first received from the factory. recalibrated in the field. A calibrated digital meter with an input range of at ...

  • Page 70: Input Calibration (Ical)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Input Calibration (ICAL) To Run Mode if calibration is successful, otherwise an message will appear. Recalibrating the Analog Input Channels (Ch-A & Ch-B) The analog input channels are calibrated at the factory. If recalibration is needed, follow the flowchart menu above and the instructions below.

  • Page 71: Troubleshooting

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Troubleshooting Due to the many features and functions of the scanner, it’s possible that the setup of the scanner does not agree with what an operator expects to see. If the scanner is not working as expected, refer to the recommendations below.

  • Page 72: Diagnostics Menu (Diag)

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Diagnostics Menu (diag) The Diagnostics menu is located in the Advanced Features menu, to access Diagnostics menu see page 53. This menu allows the user to test the functionality of all the meter LEDs, check the meter’s software and version information, and erase the MeterView Pro software installation files from the meter.

  • Page 73: Scanner Operation

    ® PD6080/PD6081 Modbus Scanner Instruction Manual Scanner Operation The PD6080/6081 scanner is capable of operating as a Modbus Master, Slave or Snooper. As a Slave, the PD6080/6081 requires connection to a Master device: PLC, DCS, etc. As a Master, the PD6080/6081 interfaces up to sixteen slave devices and can alternately display their Process Variables.

  • Page 74: Factory Defaults & User Settings

    ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual Factory Defaults & User Settings The following table shows the factory setting for most of the programmable parameters on the scanner. Parameter Display Default Setting Parameter Display Default Setting Adder (constant 0.000 Mode mode Master Adder...
  • Page 75 ® PD6080/PD6081 Modbus Scanner Instruction Manual Parameter Display Default Setting Parameter Display Default Setting Relay 4 reset Source analog PV 1 Source 3.500 RSt 4 point output Fail-safe relay 1 Overrange O-rang 21.000 mA Fls 1 output Fail-safe relay 2 Fls 2 3.000 mA Underrange...
  • Page 76 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual This Page Intentionally Left Blank...

  • Page 77: Eu Declaration Of Conformity

    EN 55022:2010, EN 61000-6-2:2005, EN 61010-1:2010, and EN 61326:2013 and there were no major technical changes affecting the latest technical knowledge for the products listed above. Product Markings: Signed for and on behalf of Precision Digital Corporation: Name: Jeffrey Peters Company:...
  • Page 78 ® PD6080/PD6081 Modbus Scanner Meter Instruction Manual How to Contact Precision Digital  For Technical Support: Call: (800) 610-5239 or (508) 655-7300 Fax: (508) 655-8990 Email: support@predig.com  For Sales Support or to place an order: Call: (800) 343-1001 or (508) 655-7300 Fax: (508) 655-8990 Email: sales@predig.com...

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