Precision Digital Corporation ProtEX-MAX PD8-6080 Instruction Manual

Modbus® scanners
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ProtEX-MAX PD8-6080/PD8-6081 Modbus® Scanners
Instruction Manual
Fully Approved Explosion-Proof Modbus
®
Modbus
RS-485 RTU Scanner as Master, Slave, or Snooper
Dual Analog Inputs (0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V)
On-Board USB & RS-485 Serial Communication Standard
Decimal or Feet & Inches (with Eighths & Sixteenths) Display Options
Poll and Display up to 16 Process Variables
Add, Diff, Avg, Multi, Div, Min, Max, Weighted Avg, Ratio, Concentration, & More
Dual-Line 6-Digit Display, 0.6" (15 mm) & 0.46" (12 mm)
SafeTouch Through-Glass Button Programming
Display Mountable at 0°, 90°, 180°, & 270°
4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option
Password Protection
Free PC-Based, On-Board, ScanView USB Programming Software
SunBright Display Standard Feature; Great for Outdoor Applications
Operating Temperature Range: -55 to 65°C (-67 to 149°F)
CSA Certified as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof
ATEX and IECEx Certified as Flame-Proof
Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC
Multi-Pump Alternation Control
32-Point, Square Root, or Exponential Linearization
Flanges for Wall or Pipe Mounting
Explosion-Proof Aluminum or Stainless Steel NEMA 4X / IP68 Enclosures
Four 3/4" NPT Threaded Conduit Openings
Pipe Mounting Kits
Stainless Steel Tag Available
3-Year Warranty
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001
www.predig.com
®
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Summary of Contents for Precision Digital Corporation ProtEX-MAX PD8-6080

  • Page 1 ProtEX-MAX PD8-6080/PD8-6081 Modbus® Scanners Instruction Manual • ® Fully Approved Explosion-Proof Modbus Scanners • ® Modbus RS-485 RTU Scanner as Master, Slave, or Snooper • Dual Analog Inputs (0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V) •...
  • Page 3 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Disclaimer FREE ScanView The information contained in this document is Programming Software subject to change without notice. Precision Digital makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.
  • Page 4: Table Of Contents

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Table of Contents Introduction ......................8 Ordering Information ..................8 Key Features ....................... 9 Specifications ....................16 General ......................16 Operating Modes ..................16 Master & Snooper Settings ................. 17 PV Settings ....................17 Display Settings ...................
  • Page 5 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Setting Up the Scanner (setup)..............47 Setting Up the Process Variables (PVs) (pV setup) ......... 48 Setting the Display Decimal Point (disp. d p) ..........49 Setting the Float Decimal Point (Flot. . d p)........... 49 Scaling the PV Display Values (sCale) .............
  • Page 6 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Scanner Operation ................... 83 Button Operation ..................83 SafeTouch Buttons ..................83 Function Keys Operation ................84 Digital Inputs Operation ................84 Maximum/Minimum Readings ..............84 Troubleshooting ....................84 Diagnostics Menu (diag) ................84 Testing the Display LEDs ................
  • Page 7 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Table of Figures Figure 1. Enclosure Dimensions – Front View ..........24 Figure 2. Enclosure Dimensions – Side Cross Section View ....... 24 Figure 3. Transmitter Supply Voltage Selection ..........28 Figure 4. Integrated P Required Connections ........
  • Page 8: Introduction

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Introduction Ordering Information The ProtEX-MAX PD8-6080 and PD8-6081 Aluminum Enclosure Explosion-Proof Modbus Scanners can be 85-265 VAC Models programmed as a Master, Slave, or Snooper. Their Model Standard Features Options Installed primary use is to scan and display up to 16 Modbus...
  • Page 9: Key Features

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Key Features • Form C (SPDT) relays • Removable terminal blocks • 4 relays + isolated 4-20 mA output option • Universal 85-265 VAC or 12/24 VDC input power • Voltage or current inputs •...
  • Page 10 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Modbus Capabilities Modbus Scanner Video Learn more about the Modbus scanners in this short video. There are three operating modes for the Modbus scanners: Master Processes data read from Modbus RTU slave devices. It polls up to 16 process variables from 1 to 16 slave devices.
  • Page 11 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Multivariable Level Transmitters Application In this application we have a system consisting of four multivariable tank level gauges connected to a PD8-6080-6H7 displaying product level, interface level, and average temperature. The PD8-6080 is setup for Master mode, and it is polling the Modbus transmitters.
  • Page 12 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Powerful Math Functions Easy Programming Methods The PD8-6080 & PD8-6081 use up to 16 process Given the nature of Modbus applications and the variables in a variety of powerful math functions flexibility and feature-rich capabilities of the Modbus designed for process applications.
  • Page 13 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Physical Features Wide Viewing Angle Customers can’t always look at the display from The ProtEX-MAX is designed for ease-of-use in safe and hazardous area applications, and is housed in a straight on, so the window and display module have...
  • Page 14 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Rotatable Display Removable Screw Terminals The ProtEX-MAX rotatable display, along with four Industrial applications require screw terminal available conduit connections, provide for numerous connections for easy field wiring and the ProtEX-MAX installation options. The display can be rotated in 90°...
  • Page 15 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Useful Tools PD9501 Multi-Function Calibrator This PD9501 Multi-Function Calibrator has a variety of signal measurement and output functions, including voltage, current, thermocouple, and RTD. PD9502 Low-Cost Signal Generator PD9502 is a low-cost, compact, simple to use 4-20 mA or 0-10 VDC signal generator.
  • Page 16: Specifications

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Specifications Environmental T6 Class operating temperature range Ta = -55 to 60ºC Except where noted all specifications apply to T5 Class operating temperature range operation at +25°C. Ta = -55 to 65ºC Storage temperature range: -55 to 85ºC (-67 to 185ºF)
  • Page 17: Master & Snooper Settings

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Master & Snooper Settings Display Settings PV Number PV1–PV16 Enable or disable the process Scan Mode Automatic: 1.0 to 99.9 sec variables to be polled by the Master. Manual: Front panel or digital inputs...
  • Page 18: Serial Communications

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Serial Communications Dual Process Inputs Two Inputs Two non-isolated analog inputs, Compatibility EIA-485 independent field selectable: Connectors Removable screw terminal connector 0-20 mA, 4-20 mA; 10 V (0-5, 1-5, 0-10 V) Max Distance...
  • Page 19: Relays

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Relays Isolated 4-20 mA Output Rating 4 SPDT (Form C) internal and rated 3 A Output Source PV1-16, math channels C1-4, @ 30 VDC and 125/250 VAC resistive load; set points 1-4, or manual control mode 1/14 HP (≈...
  • Page 20: Usb Connection

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual USB Connection Digital Inputs & Outputs Function Programming only Function Terminals provided for remote operation of all four programming / operation buttons. Connector Type Micro-B receptacle Other uses include acknowledge/reset Cable USB A Male to Micro-B Cable relays and reset max/min values.
  • Page 21: Enclosure

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual General Compliance Enclosure Information Material AL Models: ASTM A413 LM6 die-cast aluminum, copper-free, enamel coated SS Models: Electromagnetic Compatibility ASTM A743 CF8M investment-cast 316 stainless steel Emissions EN 55022 Class A ITE emissions requirements...
  • Page 22: Product Ratings And Approvals

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Product Ratings and Approvals Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1, T5 Class III, Division 1, T6 (Ta max = 60°C) Ex db IIC T5 Ex db IIC T6 (Ta max = 60°C)
  • Page 23: Eu Declaration Of Conformity

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual EU Declaration of Unpacking Conformity Remove the scanner from box. Inspect the packaging and contents for damage. Report For shipments to the EU and UK, a Declaration of damages, if any, to the carrier.
  • Page 24: Mounting

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Wall Mounting Instructions Mounting The scanner can be mounted to any wall or flat The ProtEX-MAX has two slotted mounting flanges surface using the four provided mounting holes that may be used for pipe mounting or wall mounting.
  • Page 25 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Pipe Mounting Instructions Vertical Pipe Mounting Horizontal Pipe Mounting The scanner can also be mounted to a pipe using an optional U-Bolt kit. This kit includes two U-bolts, the necessary hardware, and is available in zinc plated steel (PDA6848) and 316 stainless steel (PDA6848-SS).
  • Page 26: Installation Overview

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Once the driver is installed, an AutoPlay Installation Overview dialog should appear for the drive We recommend the following sequence for getting the “MAINSTAL.” Click “Open folder to view scanner into service: files.”...
  • Page 27 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual ScanView Monitoring Once the scanner has been configured, the user chooses Monitor from the top menu bar. The Monitor window will appear; the enabled PVs and all associated values will take a few seconds to display.
  • Page 28: Transmitter Supply Voltage Selection (P+, P-)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual To access the connectors, remove the enclosure Transmitter Supply Voltage cover and unscrew the two captive screws that fasten Selection (P+, P-) the electronics module. Signal connections are made to de-pluggable connectors on the back of the All scanners, including models equipped with the electronics module.
  • Page 29: Pro Vu U Electronics Module Layout

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Electronics Module Layout for PD8-6080/81-6H7 and PD8-6080/81-7H7* * For models PD8-6080/81-6H0 and PD8-6080/81-7H0 the upper set of connectors (RELAYs & MA OUT) are not present Figure 5. P Electronics Module Layout USB Connection Figure 6.
  • Page 30: Power Connections

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Power Connections Power connections are made to a two-terminal connector labeled POWER on the back of the scanner. The scanner will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring convention.
  • Page 31: Rs-485 Connections

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual RS-485 Connections Digital I/O Connections The RS-485 connections are made to a five terminal connector used for Modbus RTU serial Digital inputs and outputs are provided in order to communications. The RS-485 terminals include expand the functionality of the scanner.
  • Page 32: Relay Connections

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Relay Connections Switching Inductive Loads Relay connections are made to two six-terminal The use of snubbers to suppress electrical noise is connectors labeled RELAY1 – RELAY4. Each relay’s strongly recommended when switching inductive loads to prevent disrupting the microprocessor’s...
  • Page 33: 4-20 Ma Output Connections

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual 4-20 mA Output Connections Remote Programming The scanner can be operated via the programming Connections for the 4-20 mA transmitter output are buttons or a remote control station with required made to the connector terminals labeled mA OUT.
  • Page 34: Analog Input Signal Connections

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Analog Input Signal Connections Voltage (V) Connections Analog input signal connections are made to a The following figures show examples of voltage nine-terminal connector labeled SIGNAL. The COM connections. (common) terminals are the return for the 4-20 mA There are no switches or jumpers to set up for voltage and the 10 V input signals.
  • Page 35: Setup And Programming

    ProtEX-MAX PD8-6080/PD8-6081 Modbus® Scanners Instruction Manual Setup and Programming There is no need to recalibrate the scanner when first received from the factory. The scanner is factory calibrated prior to shipment for milliamps and volts with calibration equipment that is certified to NIST standards.
  • Page 36 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual PD8-6081 State Indication Alarm condition based on set and reset points, independent of relay Steady status in certain configurations. (Available on all meter configurations, including those without relays installed) Flashing Relay interlock switch open 1-4 &...
  • Page 37: Programming Buttons

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Programming Buttons Button Symbol Description Press to enter, exit Programming Mode, or exit max/min readings Press to move to the previous PV or math channel Press to move to the next PV or math channel...
  • Page 38: Display Functions & Messages

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Display Functions & Messages Display Functions & Messages The following table shows the main menu functions Display Parameter Action/Setting and messages in the order they appear in the menu. Description 3412 Byte Order Select byte-swapped Display Functions &...
  • Page 39 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Display Functions & Messages Display Functions & Messages Display Parameter Action/Setting Display Parameter Action/Setting Description Description 1234 units Byte Order Select big-endian byte Units Units order. fornmt Format Format (Decimal, 4321 Byte Order...
  • Page 40 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Display Functions & Messages Display Functions & Messages Display Parameter Action/Setting Display Parameter Action/Setting Description Description D off Aout Display off Display Off Analog Enter the Analog Output output scaling menu d-Inty Display...
  • Page 41: Menu Navigation Tip

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Menu Navigation Tip Main Menu • The main menu consists of the most commonly used The Up arrow scrolls through the sub-menus functions: Mode, Setup, Serial, and Password. within a menu, after the last item it returns to the •...
  • Page 42: Serial Communications (Serial)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual When using more than one scanner in a multi-drop Serial Communications (serial) mode, each scanner must be provided with its own The scanner is equipped with RS-485 Modbus RTU unique address. The scanner address (Scan ID) may serial communications.
  • Page 43: Scanner Mode Selection

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Scanner Mode Selection How to Enable Process Variables (PVs) Operating Modes (nmode) In Master or Snooper Mode, navigate to the PV The Mode menu is used to select how the scanner is Number menu and press ENTER. From there, the...
  • Page 44: Master Mode (Nmastr)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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 45: Snooper Mode (Snoopr)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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. Use the menu below to configure Snooper Mode parameters.
  • Page 46: How To Select 5 Or 6-Digit Registers

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Slave Mode (SlaVe) How to Select 5 or 6-Digit The Slave mode is capable of accepting Short, Long, Registers and Float data types. Refer to the Modbus Register Tables at www.predig.com for details of all the In Master or Snooper Mode, it is possible to select predefined parameters.
  • Page 47: Setting Up The Scanner (Setup)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Setting Up the Scanner (setup) The Setup menu is used to select: PV Setup PV Tags PV Units Format: Decimal point or Feet & Inches Decimal Point Scale input data Display assignment & Intensity...
  • Page 48: Setting Up The Process Variables (Pvs) (Pv Setup)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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 49: Setting The Display Decimal Point (Disp. D P)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Setting the Display Decimal Point Scale Menu (disp. d p) Decimal point may be set one to five decimal places or with no decimal point at all. Pressing the Up arrow moves the decimal point one place to the right until no decimal point is displayed, and then it moves to the leftmost position.
  • Page 50: Setting Up The Displays (Dsplay Setup)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Display Line 2 Parameters Setting Up the Displays (Line 2 dsplay) (dsplay setup) The bottom display (line 2) can be programmed to display any of the following: Display Line 1 Parameters Display Parameter...
  • Page 51: Display Line 1 Menu (Line 1 Dsplay)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Display Line 1 Menu (Line 1 dsplay) 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. These all can be changed to any enabled PVs.
  • Page 52: Display Line 2 Menu (Line 2 Dsplay)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Display Line 2 Menu (Line 2 dsplay) 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. These all can be changed to any enabled PVs.
  • Page 53: Setting The Tags (Tag) & Units (Units)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Setting the Tags (tAg) Application Example 1 In this application we have a system consisting of & Units (units) (4) multivariable tank level gauges connected to Each PV can be setup with its own tag and units. See...
  • Page 54 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Parameter PD8-6080 PD8-6080 Description/ Parameter PD8-6080 PD8-6080 Description/ Master Snooper Comment Master Snooper Comment Data Type Long Long Register Tank 3 30001 30001 integer Product Binary, Level Signed Data Type Long Long integer...
  • Page 55: Application Example 2

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Application Example 2 Parameter PD8-6080 PD8-6080 Description/ Master Snooper Comment In this application we have a system consisting of (4) multivariable tank level gauges connected to Function Code (2) PD8-6081s displaying Product Level, Interface Level, and Average Temperature.
  • Page 56: Setting The Relay Operation (Relay)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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) • During setup, the relays do not follow the input and they will remain in the state found prior to entering the Relay menu.
  • Page 57: Setting The Relay Action (Act 1)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Setting the Relay Action (act 1) Programming Set and Reset Operation of the relays is programmed in the Action Points menu. The relays may be set up for any of the High alarm indication: program set point above reset following modes of operation: point.
  • Page 58: Relay Action For Loss Of 4-20 Ma Input (Loop Break)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Relay Action for Loss of 4-20 mA Time Delay Operation The following graphs show the operation of the time Input (Loop Break) delay function. The loop break feature is associated with the 4-20 mA input.
  • Page 59: Relay And Alarm Operation Diagrams

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual High Alarm with Fail-Safe Relay and Alarm Operation Operation (Set > Reset) Diagrams The following graphs illustrate the operation of the relays, status LEDs, and ACK button. High Alarm Operation (Set > Reset) Note: Relay coil is energized in non-alarm condition.
  • Page 60: Pump Alternation Control Operation

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Pump Alternation Control Operation Relay Operation After Communications Break When a Master scanner fails to receive a reply from the slave it is called a Communications Break. The relays can be programmed to react to this event by going On, Off, or No Action. After communication is restored, the relays are turned off or on, based on their operating mode and their set and reset points, without regard to their prior state.
  • Page 61: Relay Operation Details

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Front Panel LEDs Relay Operation Details The alarm status LEDs on the front panel are Overview available on all scanners, even those without relays The four-relays option for the scanners expand their installed, and provide status indication for the...
  • Page 62: Non-Latching Relay (Auto)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Non-Latching Relay (Auto) Latching Relay with Clear (Lt-Clr) In this application, the scanner is set up for automatic In this application, the scanner is set up for manual reset (non-latching relay). Acknowledging the alarm...
  • Page 63: Acknowledging Relays

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Acknowledging Relays Application #1: Pump Alternation Using Relays 1 & 2 There are three ways to acknowledge relays programmed for manual reset: Set and Reset Point Programming Via the programmable front panel function keys...
  • Page 64: Setting Up The Interlock Relay (Force On) Feature

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Setting Up the Interlock Relay Scaling the 4-20 mA Analog (Force On) Feature Output (Aout) Relays 1-4 can be set up as interlock relays. To set The 4-20 mA analog output can be scaled to provide up the relays for the interlock feature: a 4-20 mA signal for any display range selected.
  • Page 65: Setting Up The Password (Pass)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Disabling Password Protection Setting Up the Password (pass) To disable the password protection, access the The Password menu is used for programming three Password menu and enter the correct password levels of security to prevent unauthorized changes to twice, as shown below.
  • Page 66: Advanced Features Menu

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Advanced Features Menu & Advanced Features Menu Display Messages To simplify the setup process, functions not needed for most applications are located in the Advanced Advanced Features Menu & Display Messages Features menu:...
  • Page 67 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Advanced Features Menu & Display Messages Advanced Features Menu & Display Messages Action/Setting Action/Setting Display Parameter Display Parameter sCale Scale Number of sunm Math2 Function Sum Scale Linearization Points Math2 Function Difference Inp 1...
  • Page 68: Scan Function (Scan)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Scan Function (SCan) Advanced Features Menu & Display Messages The Scan menu is used to program the PV scan Action/Setting Display Parameter mode and the scanner’s behavior on alarm condition. Set Points 1-4...
  • Page 69: Manual Control Menu (Contrl)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Manual Control Menu (Contrl) The Manual Control menu is used to control the 4-20 mA analog output and the relays manually, ignoring the input. Each relay and analog output can be programmed independently for manual control. Selecting automatic control sets...
  • Page 70: Noise Filter (Filter)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Noise Filter (filter) Rounding Feature (round) Most applications do not require changing this The rounding feature is used to give the user a parameter. It is intended to help attain a steady steadier display with fluctuating signals. Rounding is display with unsteady (noisy) input data.
  • Page 71 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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 72 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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. 4 mA) is equal to zero flow and the high input signal (e.g.
  • Page 73 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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.
  • Page 74 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Math Functions (nmath) Math Constants (Const) The Math menu is used to select the math function The Math Constants menu is used to set the that will determine the channels’ C1-C4 value. These constants used in the math channel.
  • Page 75 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Math Function Menu (nmath) Notes: In the above menu, “A” & “B” in equations can represent any PVs (PV1-PV16). See table above. Each digit represents one PV in hexadecimal format, except PV16 (G).
  • Page 76 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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 77 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners 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 function. Only two PVs at a time will be used for this function...
  • Page 78: Low-Value Cutoff (Cutoff)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Low-Value Cutoff (CutofF) Analog Output Source The low-value cutoff feature allows the scanner to be Programming (aoutpr) programmed so that the often unsteady output from a The 4-20 mA analog outputs can be programmed for...
  • Page 79 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Analog Output Calibration Analog Output Calibration Procedure • There is no need to recalibrate the 4-20 mA Wire the scanner 4-20 mA output to a current output when first received from the factory.
  • Page 80: Programmable Function Keys User Menu (User)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Programmable Function Keys User Menu (user) The User menu allows the user to assign the front panel function keys F1, F2, and F3, the digital input F4 (located on the input signal connector), and four digital inputs (located on the digital I/O connector) to access most of the menus or to activate certain functions immediately (e.g.
  • Page 81: Digital Input Menu (Di 1)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Digital Input Menu (dI 1) Digital Output Menu (dO 1) Reset Menu (reset) The Reset menu is used to reset the maximum or minimum reading (peak or valley) reached by the process; both may be reset at the same time by selecting “reset high &...
  • Page 82: Input Calibration (Ical)

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Input Calibration (ICAL) 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 83: Scanner Operation

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Scanner Operation SafeTouch Buttons The ProtEX-MAX is equipped with four sensors that When installed, the primary way to operate the operate as through-glass buttons so that it can be scanner is with the SafeTouch through-glass buttons...
  • Page 84: Function Keys Operation

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Troubleshooting Function Keys Operation During operation, the programmable function keys The rugged design and the user-friendly interface of operate according to the way they have been the scanner should make it unusual for the installer or programmed in the Advanced Features –...
  • Page 85: Determining Software Version

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Determining Software Version Factory Defaults & User Settings To determine the software version of a scanner: The following table shows the factory setting for most of the programmable parameters on the scanner. Go to the Diagnostics menu (diAG) and press Enter button.
  • Page 86 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Factory Defaults & User Settings Factory Defaults & User Settings Parameter Display Default Setting Parameter Display Default Setting Ch-A On 3 Filter, PV 1 On delay relay 3 0.0 sec Ch-B Off 3...
  • Page 87: Troubleshooting Tips

    ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Troubleshooting Tips This scanner is a highly sophisticated instrument with an extensive list of features and capabilities. If the programming buttons are used to program the scanner, it may be a difficult task to keep everything straight. That is...
  • Page 88 ProtEX-MAX PD8-6080/PD8-6081 Explosion-Proof Modbus® Scanners Instruction Manual Troubleshooting Tips Symptom Check/Action If mechanical button was pushed, the SafeTouch buttons will be re-enabled SafeTouch buttons do not respond automatically 60 seconds after the last button push. If slide switch on connector board is in DISABLE position, switch to ENABLE.
  • Page 90 ProtEX-MAX PD8-6080/PD8-6081 Modbus® Scanners Instruction Manual Contact Precision Digital Technical Support Call: (800) 610-5239 or (508) 655-7300 Email: support@predig.com Sales Support Call: (800) 343-1001 or (508) 655-7300 Email: sales@predig.com Place Orders Email: orders@predig.com For the latest version of this manual please visit www.predig.com...

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