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Precision Digital Corporation PD2-6080 Instruction Manual

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Helios PD2-6080/PD2-6081 Modbus® Scanners
Instruction Manual
•
Large Display NEMA 4X, IP65 Wall Mounted 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)
•
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
•
Large Dual-Line 6-Digit Display, 1.8" (46 mm) Digits Readable up to 100 Feet (30 Meters) Away
•
4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option
•
Free PC-Based, On-Board, ScanView USB Programming Software
•
SunBright Display Standard Feature; Great for Outdoor Applications
•
Operating Temperature Range of -40 to 65°C (-40 to 149°F)
•
Conformal Coated PCBs for Dust and Humidity Protection
•
UL & C-UL Listed. E160849; 508 Industrial Control Equipment
•
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
•
External 4-Relay & Dual 4-20 mA Output Expansion Modules
•
5 Digital Inputs & 4 Digital Outputs Standard
•
Password Protection
•
Light / Horn & Button Accessory
•
Control Station Accessory for Remote Operation
•
3-Year Warranty
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
ScanView
USB Install

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Summary of Contents for Precision Digital Corporation PD2-6080

  • Page 1 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual ScanView USB Install • Large Display NEMA 4X, IP65 Wall Mounted 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 2 Helios PD2-6080/PD2-6081 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 3: Table Of Contents

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Table of Contents Introduction ......................6 Ordering Information ................... 6 Specifications....................... 8 Operating Modes ..................... 8 Master & Snooper Settings ................8 PV Settings ....................... 8 Display Settings ....................8 Math Functions ....................9 General ......................
  • Page 4 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual How to Enable Process Variables (PVs) ............31 Master Mode (nmastr) ................32 Snooper Mode (Snoopr) ................33 How to Select 5 or 6-Digit Registers ............34 Slave Mode (SlaVe) ..................34 Setting Up the Scanner (setup) ..............35 Setting Up the Process Variables (PVs) (pV setup) ........
  • Page 5 Figure 7. Horizontal Pipe Mount Assembly ............. 15 Figure 8. Transmitter Supply Voltage Selection ..........17 Figure 9. PD2-6080/1-6H0 / 7H0 Connectors Label ......... 18 Figure 10. PD2-6080/1-6H7 / 7H7 Connectors Label ........18 Figure 11. Power Connections ................. 19 Figure 12.

  • Page 6: Introduction

    C1, C2, C3, or C4. The digital inputs/outputs can be PDA2361-A Ack button custom-programmed for specific operations. PDA2361-B Blank button A fully loaded Helios PD2-6080 or PD2-6081 scanner PDA2361-R Reset button comes with four SPDT relays, a 4-20 mA output, two PDA2361-T Tare button...
  • Page 7 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Light / Horn Accessories Pipe Mounting Kit Helios Scanner Shown with MOD-PD2LHRB1 Red Helios Scanner Shown mounted to pipe using Light / Horn and Button. Scanner Sold Separately. PDA6260 pipe mounting kit. See Pipe Mounting Instructions on page 15 for details.

  • Page 8: Specifications

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Specifications Displays brEAK after the Master has polled Communica- tion Break the slave device 3 times and the response timeout has elapsed. The Snooper and Except where noted all specifications apply to Slave modes go into break condition after no operation at +25°C.

  • Page 9: Math Functions

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Math Functions Fuse Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 scanners may share one 5 A fuse. Name Math Operation (Examples) Setting (P = Adder, F = Factor)

  • Page 10: Serial Communications

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Serial Communications Dual Process Input 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 3,937' (1,200 m) max Terminals P+ &...

  • Page 11: Relays

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Relays Isolated 4-20 mA Transmitter Output Rating 4 SPDT (Form C) internal and rated 3 A @ 30 VDC and 125/250 VAC resistive load; Output Source PV1-16, math channels C1-4, 1/14 HP (≈ 50 W) @ 125/250 VAC for...

  • Page 12: Usb Connection

    Helios PD2-6080/PD2-6081 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 Type B receptacle (use PDA2364-MRUE control station). Cable USB Type A-B cable Other uses include acknowledge/reset relays and reset max/min values.

  • Page 13: Compliance Information

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Compliance Information Safety Information Safety • Read complete instructions prior to installation UL & C-UL USA & Canada and operation of the scanner. Listed UL 508 Industrial Control Equipment (USA) C22.2 No. 142 (Canadian National •...

  • Page 14: Wall Mounting Instructions

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Mounting Dimensions Wall Mounting Instructions The scanner can be mounted to any wall using the 4.77" four provided mounting holes. Note that the bottom (121.2 mm) mounting holes are located underneath the lower door panel.

  • Page 15: Pipe Mounting Instructions

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Pipe Mounting Instructions The scanner can also be mounted to a pipe using the optional pipe mounting kit (PDA6260). This kit includes two mounting plates, two U-bolts, and the necessary nuts and bolts. To mount the scanner to a pipe using the pipe mounting kit accessory, follow these instructions.

  • Page 16: Installation Overview

    Helios PD2-6080/PD2-6081 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.” DO NOT apply AC or DC power to the scanner.

  • Page 17: Scanview Monitoring

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual ScanView Monitoring 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.

  • Page 18: Connections

    • DO NOT disconnect the RJ45 connector located to the left of the power terminal block. Doing so will disable the on-board digital I/O, and the RS-485 serial communications. Figure 9. PD2-6080/1-6H0 / 7H0 Connectors Label SIGNAL MA OUT RELAY1...

  • Page 19: Power Connections

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Power Connections RS-485 Serial Converters Power connections are made to a two-terminal To convert the RS-485 to RS-232, use the PDA7485-I connector labeled POWER on the back of the scanner. converter. To convert the RS-485 to USB, use the The scanner will operate regardless of DC polarity PDA8485-I converter.

  • Page 20: Digital I/O Connections

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual RS-485 Converter Connections F4 Digital Input Connections A digital input, F4, is standard on the scanner. This Figure 15 below details the wiring connections from digital input connected with a normally open contact the RS-485 connector to an RS-485 serial converter...

  • Page 21: Switching Inductive Loads

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Switching Inductive Loads 4-20 mA Output Connections The use of snubbers to suppress electrical noise is Connections for the 4-20 mA transmitter output are strongly recommended when switching inductive made to the connector terminals labeled mA OUT.

  • Page 22: Remote Operation Of Scanner

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Remote Operation of Scanner Analog Input Signal Connections The scanner can be operated via the programming Analog input signal connections are made to a nine- buttons or a PDA2364-MRUE remote control station terminal connector labeled SIGNAL. The COM...

  • Page 23: Setup And Programming

    Helios PD2-6080/PD2-6081 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 24 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual PD2-6081 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 25: Programming Buttons

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Programming Buttons Lower Door Panel SIGNAL MA OUT RELAY1 RELAY2 RELAY3 RELAY4 P+/P- 24V 10V 5V COM V+ mA+ COM V+ mA+ POWER Ch-A Ch-B MENU RIGHT MENU PREV NEXT SCAN Button Description Button...

  • Page 26: Display Functions & Messages

    Helios PD2-6080/PD2-6081 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 27 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Display Functions & Messages Display Functions & Messages Display Parameter Action/Setting Display Parameter Action/Setting Description Description 1234 fornmt Byte Order Select big-endian byte Format Format (Decimal, order. Eighths, or Sixteenths of an Inch) 4321...
  • Page 28 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Display Functions & Messages Display Functions & Messages Display Parameter Action/Setting Display Parameter Action/Setting Description Description d-Inty Aout Display Display Intensity Analog Enter the Analog Output Intensity output scaling menu relay AOut 1* Relay Setup Enter Relay Setup menu...

  • Page 29: Menu Navigation Tip

    Helios PD2-6080/PD2-6081 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 30: Serial Communications (Serial)

    Helios PD2-6080/PD2-6081 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 31: Scanner Mode Selection

    Helios PD2-6080/PD2-6081 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 32: Master Mode (Nmastr)

    Helios PD2-6080/PD2-6081 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 33: Snooper Mode (Snoopr)

    Helios PD2-6080/PD2-6081 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 34: How To Select 5 Or 6-Digit Registers

    Helios PD2-6080/PD2-6081 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 35: Setting Up The Scanner (Setup)

    Helios PD2-6080/PD2-6081 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 36: Setting Up The Process Variables (Pvs) (Pv Setup)

    Helios PD2-6080/PD2-6081 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 37: Setting The Display Decimal Point (Disp. D P)

    Helios PD2-6080/PD2-6081 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 38: Setting Up The Displays (Dsplay Setup)

    Helios PD2-6080/PD2-6081 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 Setting Description...

  • Page 39: Display Line 1 Menu (Line 1 Dsplay)

    Helios PD2-6080/PD2-6081 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 40: Display Line 2 Menu (Line 2 Dsplay)

    Helios PD2-6080/PD2-6081 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 41: Setting The Tags (Tag) & Units (Units)

    (4) multivariable tank level gauges connected to Each PV can be setup with its own tag and units. See (2) PD2-6080 Mobus scanners displaying Product the flow charts on the previous pages to access the Level, Interface Level, and Average Temperature.
  • Page 42 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Parameter PD2-6080 PD2-6080 Description/ Parameter PD2-6080 PD2-6080 Description/ Master Snooper Comment Master Snooper Comment Data Type Long Long Register Tank 3 30001 30001 integer Product Binary, Level Signed Long Data Type Long integer Byte Order...

  • Page 43: Application Example 2

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Application Example 2 Parameter PD2-6080 PD2-6080 Description/ Master Snooper Comment In this application we have a system consisting of (4) multivariable tank level gauges connected to Function Code (2) PD2-6081s displaying Product Level, Interface Level, and Average Temperature.

  • Page 44: Setting The Relay Operation (Relay)

    Helios PD2-6080/PD2-6081 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 45: Setting The Relay Action (Act 1)

    Helios PD2-6080/PD2-6081 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 46: Relay Action For Loss Of 4-20 Ma Input (Loop Break)

    Helios PD2-6080/PD2-6081 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 47: Relay And Alarm Operation Diagrams

    Helios PD2-6080/PD2-6081 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. In case of power failure, relay will go to alarm state.

  • Page 48: Pump Alternation Control Operation

    Helios PD2-6080/PD2-6081 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 49: Relay Operation Details

    Helios PD2-6080/PD2-6081 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 50: Non-Latching Relay (Auto)

    Helios PD2-6080/PD2-6081 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 51: Acknowledging Relays

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Acknowledging Relays Pump Alternation Control There are three ways to acknowledge relays Applications (Altern) programmed for manual reset: For pump control applications where two or more Via the programmable front panel function keys similar pumps are used to control the level of a tank F1-F3 (Example: F3 assigned to ACK).

  • Page 52: Setting Up The Interlock Relay (Force On) Feature

    Helios PD2-6080/PD2-6081 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 53: Setting Up The Password (Pass)

    Helios PD2-6080/PD2-6081 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 54: Advanced Features Menu

    Helios PD2-6080/PD2-6081 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: Action/Setting...
  • Page 55 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Advanced Features Menu & Display Messages Advanced Features Menu & Display Messages Action/Setting Action/Setting Display Parameter Display Parameter Inp 1 Scale input 1 signal or difabs Math2 Function Input 1 Absolute program input 1 value...

  • Page 56: Scan Function (Scan)

    Helios PD2-6080/PD2-6081 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. Rly e Relay Enable...

  • Page 57: Manual Control Menu (Contrl)

    Helios PD2-6080/PD2-6081 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 58: Noise Filter (Filter)

    Helios PD2-6080/PD2-6081 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 59 Helios PD2-6080/PD2-6081 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 60 Helios PD2-6080/PD2-6081 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 61 Helios PD2-6080/PD2-6081 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. The tank’s dimensions can be entered in inches or centimeters;...
  • Page 62 Helios PD2-6080/PD2-6081 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. The math...
  • Page 63 Helios PD2-6080/PD2-6081 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). PV1 – PV9 = 1 - 9, PV10 – PV16 = A – G No PV selected = “underscore symbol”...
  • Page 64 Helios PD2-6080/PD2-6081 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 65 Helios PD2-6080/PD2-6081 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 66: Low-Flow Cutoff (Cutoff)

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Low-Flow Cutoff (CutofF) Analog Output Source The low-flow 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 67 Analog Output Calibration Procedure • There is no need to recalibrate the 4-20 mA Wire the PD2-6080/1 4-20 mA output to a current output when first received from the factory. loop that includes a power supply (internal or • The 4-20 mA outputs is factory calibrated prior external 12 to 24 VDC), and the mA input on the digital meter.

  • Page 68: Programmable Function Keys User Menu (User)

    Helios PD2-6080/PD2-6081 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 69: Digital Input Menu (Di 1)

    Helios PD2-6080/PD2-6081 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 & low” (rst HL). This is applied to all PVs and math channels.

  • Page 70: Input Calibration (Ical)

    Helios PD2-6080/PD2-6081 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. Enter the ICAL menu to calibrate channel A and channel B.

  • Page 71: Troubleshooting

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Troubleshooting 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 72: Diagnostics Menu (Diag)

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Reset Scanner to Factory Defaults Diagnostics Menu (diag) When the parameters have been changed in a way The Diagnostics menu is located in the Advanced that is difficult to determine what’s happening, it might...

  • Page 73: Scanner Operation

    Scanner Operation Function Keys Operation During operation, the programmable function keys The PD2-6080/1 scanner is capable of operating as a operate according to the way they have been Modbus Master, Slave or Snooper. As a Slave, the programmed in the Advanced Features – User menu.

  • Page 74: Factory Defaults & User Settings

    Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Factory Defaults & User Factory Defaults & User Settings Settings Parameter Display Default Setting Filter Filter The following table shows the factory setting for most of the programmable parameters on the scanner. Filter, PV 1...
  • Page 75 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Factory Defaults & User Settings Parameter Display Default Setting Communications break relay 1 Communications break relay 2 Communications break relay 3 Communications break relay 4 Display 1 Dis 1 00.00.00 analog output Output 1 value Out 1 4.000 mA...
  • Page 76 Helios PD2-6080/PD2-6081 Modbus® Scanners Instruction Manual Contact Precision Digital Technical Support Call: (800) 610-5239 or (508) 655-7300 Fax: (508) 655-8990 Email: support@predig.com Sales Support Call: (800) 343-1001 or (508) 655-7300 Fax: (508) 655-8990 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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