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PRECISION DIGITAL ProtEX Series Instruction Manual

Explosion-proof modbus scanner
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ProtEX PD8-6080/PD8-6081 Explosion-Proof
Modbus
• 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 @ 25 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
• Modern, Sleek and Practical Enclosure
• Display Mountable at 0°, 90°, 180°, & 270° Degrees
• Explosion-Proof, IP68, NEMA 4X Enclosure
• SafeTouch
®
Through-Glass Button Programming
• Flanges for Wall or Pipe Mounting
• 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
®
Scanner Instruction Manual
Modbus Scanner
www.predig.com

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Summary of Contents for PRECISION DIGITAL ProtEX Series

  • Page 1 Through-Glass Button Programming • Flanges for Wall or Pipe Mounting • 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

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Table of Contents Table of Contents ----------------------------------------- 3 Master Mode (nmastr) ----------------------------------- 33 Snooper Mode (Snoopr) ----------------------------------- 34 Table of Figures ------------------------------------------- 4 How to Select 5 or 6-Digit Registers ------------------ 35 Introduction ------------------------------------------------- 5 Slave Mode (Slave) -------------------------------------- 35 Ordering Information ------------------------------------ 6...

  • Page 4: Table Of Figures

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Advanced Features Menu & Display Messages --- 59 Troubleshooting ----------------------------------------- 76 Scan Function (SCan) ------------------------------------- 61 Diagnostics Menu (diag) ---------------------------------- 77 Control Menu (Contrl) ----------------------------------- 61 Determining Software Version ------------------------- 77 Noise Filter (filter) ----------------------------------------- 62 Reset Scanner to Factory Defaults ------------------- 77 Noise Filter Bypass (bypass) --------------------------- 62 Testing the Display LEDs ------------------------------- 77...

  • Page 5: Introduction

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Introduction ® The ProtEX-MAX PD8-6080 Super Snooper Modbus scanner offers all the functionality of the ProVu PD6080 as a fully FM, CSA, ATEX, and IECEx approved explosion-proof product. t 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

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Ordering Information Standard Display Models 85-265 VAC Power 12/24 VDC Power Options Installed Model Model PD6080-6H0 PD6080-7H0 No options PD6080-6H7 PD6080-7H7 4 relays & 4-20 mA output Feet & Inches Display Models PD6081-6H0 PD6081-7H0 No options...

  • Page 7: Specifications

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Specifications Except where noted all specifications apply to operation at +25°C. Displays “brEAK” after the Master has polled Operating Modes Communicati on Break the slave device 3 times and the response Master Processes data read from Modbus RTU timeout has elapsed.

  • Page 8: Math Functions

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Math Functions Underrange Values less than -99999 cause the display to flash -99999 Name Math Operation (Examples) Setting Programming Four front panel buttons, digital inputs, PC (P = Adder, F = Factor) Methods and ScanView software, or Modbus Sunm...

  • Page 9: Relays

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Isolated 4-20 mA Transmitter Output Tightening Screw terminal connectors: 5 lb-in (0.56 Torque Output Source PV1-16, math channels C1-4, set points 1- Overall 6.42" x 7.97" x 8.47" (W x H x D) 4, or manual control mode Dimensions (163 mm x 202 mm x 215 mm)

  • Page 10: Dual Process Input

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Dual Process Input Calibration Input Minimum Span Range Range Input 1 & Input 2 Two Inputs Two non-isolated analog inputs, each 4-20 mA 0.15 mA separately field selectable: 10 V 0.01 V 0-20 mA, 4-20 mA;...

  • Page 11: Product Ratings And Approvals

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Product Ratings and Approvals; Enclosure: Type 4X; IP66 Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1, T5/T6 Class I, Zone 1, AEx d, IIC Gb T5/T6 Zone 21, AEx tb IIIC T90°C;...

  • Page 12: Compliance Information

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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...

  • Page 13: Safety Information

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Safety Information WARNINGS • Read complete instructions prior to installation and operation of the instrument. • Installation and service should be performed only by trained service personnel. Service requiring replacement of internal sub-components must be performed at the factory. •...

  • Page 14: Pre-Installed Conduit/Stopping Plug

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Pre-Installed Conduit/Stopping Plug The PD8-6000 is supplied with two pre-installed conduit plugs for installations that do not require the use of all conduit entries. The conduit/stopping plugs include an internal 12mm hexagonal socket recess for removal.

  • Page 15: Connections

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Connections • Static electricity can damage sensitive components. • Observe safe handling precautions for static-sensitive components. • Use proper grounding procedures/codes. • If the instrument is installed in a high voltage environment and a fault or installation error occurs, high voltage may be present on WARNINGS any lead or terminal.

  • Page 16: Connectors Labeling

    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 17: Serial Communications Connections

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Serial Communications Connections The ProtEX-MAX has a 5 position terminal block for connecting RS-485 serial devices. Figure 5 details the wiring connections from the ProtEX-MAX to an RS-485 serial converter (such as the PDA7485 or PDA8485) for a four-wire network.

  • Page 18: Figure 7: Rs-485 Wiring

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Notes: 1. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations. 2. Refer to RS-232 to RS-485 Converter documentation for further details. 3.

  • Page 19: Using Pro Vu U Serial Adapters

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Using P Serial Adapters expansion modules and serial adapters are not included in the hazardous area approvals of the ProtEX-MAX. The PDA1232 may be used only while the ProtEX-MAX is in a safe area, and will NOTICE disable some features while installed.

  • Page 20: Switching Inductive Loads

    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 21: Interlock Relay Feature

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Interlock Relay Feature As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This feature is enabled by configuring the relay and relative digital input(s).

  • Page 22: Figure 17. Voltage Input Connections

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual The current input is protected against current overload by a resettable fuse. The display may or may not show a fault condition depending on the nature of the overload. The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself when the fault condition is removed.

  • Page 23: Digital I/O Connections

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Digital I/O Connections The ProtEX-MAX has a 10 position terminal block for connecting digital inputs and outputs. 5 VDC DI 1-4 DO 1-4 Figure 18: Digital I/O Connections The onboard digital inputs (1-4) are configured at the factory to function identically to the front panel pushbuttons (Menu, F1, F2, &...

  • Page 24: Setup And Programming

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 traceable to NIST standards. Overview There are no jumpers to set for the meter input selection.

  • Page 25: Front Panel Buttons And Status Led Indicators

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Front Panel Buttons and Status LED Indicators Button Description Status Symbol/LED Menu Alarm 1-8 indicator Flashing: Relay in manual control PREV/Right arrow/F1 mode Displays PV to nearest 1/8 NEXT/Up arrow/F2 1/16 of an inch Flashing: Relay interlock switch SCAN/Enter/F3 open...

  • Page 26: Scanview Software

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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.

  • Page 27: Display Functions & Messages

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 t-resp mode Response Time Enter the time allowed Mode Enter Mode menu...
  • Page 28 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Description Description 2413 Ft In 8 Byte Order Select byte-swapped Eighths Eighth Inch Format big-endian byte order. Ft In 16 Sixteenths Sixteenth Inch Format Not available for Short. Dec.
  • Page 29 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Description Description act 1 Dis 1 Relay Action 1- Assign Relay Action for Display 1 Program the first Display value for the Analog relays 1-8 Output. Auto Automatic Set relay for automatic...

  • Page 30: Menu Navigation Tip

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 31: Serial Communications (Serial)

    RS-232, or RS-485 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 32: Scanner Mode Selection

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 33: Master Mode (Nmastr)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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.

  • Page 34: Snooper Mode (Snoopr)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 35: How To Select 5 Or 6-Digit Registers

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 36: Setting Up The Scanner (Setup)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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.

  • Page 37: Setting Up The Process Variables (Pvs) (Pv Setup)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 38: Scaling The Pv Display Values (Scale)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 39: Setting Up The Displays (Dsplay Setup)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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...

  • Page 40: Display Line 1 Menu (Line 1 Dsplay)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 41: Display Line 2 Menu (Line 2 Dsplay)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 42: Setting The Tags (Tag) & Units (Units)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 43 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual The following table shows the system setup for the MTS M-Series gauge, one PD6080 Master, and one PD6080 Snooper: Parameter PD6080 PD6080 Descriptio Parameter PD6080 PD6080 Descriptio Master Snooper n/Commen Master Snooper n/Commen Mode Master...
  • Page 44 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Parameter PD6080 PD6080 Descriptio Parameter PD6080 PD6080 Descriptio Master Snooper n/Commen Master Snooper n/Commen Register Tank 3 Data Long Long 30003 30003 Interface Type integer Binary, Data Long Long Signed Type integer Binary, Byte 1234...

  • Page 45: Application Example 2

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 46: Setting The Relay Operation (Relay)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 47: Setting The Relay Action (Act 1)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Setting the Relay Action (act 1) Operation of the relays is Use Up Arrow r e l a y 1 r e l a y 1 to scroll through programmed in the Action menu. the menu r e l a y r e l a y...

  • Page 48: Relay Action For Communications Break (Break)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 49: High Alarm With Fail-Safe Operation (Set > Reset)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 50: Relay Sampling Operation

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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.

  • Page 51: Signal Loss Or Loop Break Relay Operation

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 52: Relay Operation Details

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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.

  • Page 53: Latching And Non-Latching Relay Operation

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 54: Acknowledging Relays

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 55: Setting Up The Interlock Relay (Force On) Feature

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 56: Scaling The 4-20 Ma Analog Output (Aout)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 71.

  • Page 57: Setting Up The Password (Pass)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 58: Advanced Features Menu

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 59: Advanced Features Menu & Display Messages

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Advanced Features Menu & Display Messages Display Parameter Action/Setting Display Parameter Action/Setting Dis 2 sCan Display 2 Program display 2 value (up Scan Enter Scan menu to 32 points for PV1 & PV2) mode Scan Mode Select Auto or Manual...
  • Page 60 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Pv 2 Contrl PV 2 Cutoff Program Cutoff Value for Control Control menu PV 2 dI 1* DI 1-8 *Digital Inputs 1-8 aoutPr Analog Output Enter Analog Output menu Menu Menu...

  • Page 61: Scan Function (Scan)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 62: Noise Filter (Filter)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 63 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 64 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 65 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 66 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 67 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 68 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 69 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 70 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 71: Analog Output Source Programming (Aoutpr)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 72: User Menu (User)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 73: Digital Input Menu (Di 1)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 74: Ma Output Calibration

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 •...

  • Page 75: Input Calibration Menu (Ical)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Input Calibration Menu (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 76: Troubleshooting

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 77: Diagnostics Menu (Diag)

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Diagnostics Menu (diag) The Diagnostics menu is located in the Advanced Features menu, to access Diagnostics menu see page 58. 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 78: Scanner Operation

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof 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 79: Safetouch Buttons

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual ® SafeTouch Buttons The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area.

  • Page 80: Factory Defaults & User Settings

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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 mode Adder Adder (constant 0.000 Mode Master...
  • Page 81 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Parameter Display Default Setting Parameter Display Default Setting Source Relay 4 reset Source analog PV 1 RSt 4 3.500 point output O-rang Fls 1 21.000 mA Fail-safe relay 1 Overrange output Fls 2 Fail-safe relay 2 u-rang Underrange...

  • Page 82: Service

    ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner Instruction Manual Service WARNINGS • Installation and service should be performed only by trained service personnel. Service requiring replacement of internal sub-components must be performed at the factory. • Disconnect from supply before opening enclosure. Keep cover tight while circuits are alive.

  • Page 83: Eu Declaration Of Conformity

    SIRA 10 ATEX M462 ATEX Notified Body for Quality Assurance: Sira Certification Service, NB 0518 Unit 6, Hawarden Industrial Park Hawarden, Deeside, CH5 3US, UK Signed for and on behalf of Precision Digital Corporation: Name: Jeffrey Peters Company: Precision Digital Corporation...
  • Page 84 ® ProtEX PD8-6080/PD8-6081 Explosion-Proof Modbus Scanner 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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