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Precision Digital Corporation PD6830X Instruction Manual

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PD6830X Explosion-Proof Modbus
Instruction Manual
• Fully-Approved Explosion-Proof Modbus Scanners
• Modbus Master, Slave, or Snooper Mode
• 0.4" (10.2 mm) 7 Alphanumeric Characters Lower Display for Process Variables, Custom Units, and Tags
• 5-Digit Decimal Display (ProtEX-MS2) or Feet & Inches Display (ProtEX-MFI)
• Display Mountable at 0°, 90°, 180°, & 270°
• SafeTouch Through-Glass Button Programming
• Scan up to 16 Modbus Process Variables
• Independent Scaling, Tag, and Unit for Each PV
• Backlight Standard on All Models
• Isolated 4-20 mA Output Option
• Two Isolated Pulse Outputs Standard, Up to 5 kHz
• Operating Temperature Range: -40 to 75°C (-40 to 167°F)
• FM Approved as Explosion-Proof / Dust-Ignition Proof / Flame-Proof
• CSA Certified as Explosion-Proof / Dust-Ignition Proof / Flame-Proof
• ATEX and IECEx Certified as Flame-Proof and Protection by Enclosure
• Conformal Coated PCBs for Dust and Humidity Protection
• Password Protection
• Data Logging Functions and Modbus Accessible Data
• Free ScanView EX Programming Software
• On-Board Three-Wire Isolated RS-485 with Modbus RTU
• Wide Viewing Angle
• Flanges for Wall or Pipe Mounting
• Explosion-Proof, IP68, NEMA 4X Enclosure
• Three 3/4" NPT Threaded Conduit Openings (One Plug Installed)
• 2" U-Bolt Kits Available
• Stainless Steel Tag Available
• 3-Year Warranty
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
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  • Page 1 PD6830X Explosion-Proof Modbus Scanners ® Instruction Manual • Fully-Approved Explosion-Proof Modbus Scanners • Modbus Master, Slave, or Snooper Mode • 0.4" (10.2 mm) 7 Alphanumeric Characters Lower Display for Process Variables, Custom Units, and Tags • 5-Digit Decimal Display (ProtEX-MS2) or Feet & Inches Display (ProtEX-MFI) •...

  • Page 2: Introduction

    The instrument can also be programmed using the four SafeTouch through-glass buttons, without removing the cover, or with four internal push-buttons. © 2021 Precision Digital Corporation. All rights reserved. The PD6830X includes on-board data logging of up to 511 points.

  • Page 3: Ordering Information

    The PDA8068 USB serial adapter is used to connect PDA0002 3/4" M-NPT to 1/2" F-NPT Reducer the PD6830X directly to a computer via USB. It is PDA1024-01 24 VDC Power Supply for DIN Rail intended to be used for programming only. No live monitoring is possible with this module.

  • Page 4: Table Of Contents

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Table of Contents Introduction ......................2 Ordering Information ..................3 Specifications ..................... 7 General ......................7 Modbus Operating Modes ................8 Serial Communications ................. 8 Modbus Scanner Process Variables............. 8 Math Channels ....................9 4-20 mA Transmitter Output ................
  • Page 5 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Setting Up the Display (DISPLAY) ..............26 Top Display (TOPDSP) ................. 27 Bottom Display (BOTDSP) ................27 PV Display Setup (PVSETUP) ..............28 Math Channel Display Setup (MATH) ............31 Tank Size Indicator (TANKSZ) ..............33 Tag Display Time (T-TAG) ................
  • Page 6 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Table of Figures Figure 1. Enclosure Dimensions – Front View ........... 12 Figure 2. Enclosure Dimensions – Side Cross Section View ......12 Figure 3. Connector Board Mounted in Base of Enclosure ......13 Figure 4.

  • Page 7: Specifications

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Specifications Password Restricts modifications of programmed settings to require re-entering the password to make changes. Except where noted all specifications apply to operation at +25°C. General Input Power 9-30 VDC, 2.2 W Data Logging...

  • Page 8: Modbus Operating Modes

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Modbus Operating Modes Modbus Scanner Process Variables Master Processes and displays data read from Modbus RTU slave devices. Up to 16 PV Inputs Up to 16 independently programmed process variables (PVs) from up to 16 slave Modbus process variables (PVs) may devices.

  • Page 9: Math Channels

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Math Channels 4-20 mA Transmitter Output Math Result Output Source Modbus PV 1-16, math channel 1-4, or Four math channels CV1-CV4. Chanels Each math channel may be disabled programmed for a math function. Scaling Range 4.000 to 20.000 mA for any display range.

  • Page 10: Scanview Ex Programming Software

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual ScanView EX Programming Software System Windows® 7/8/10 (Windows 32-bit or Requirements 64-bit operating systems) Communications PDA8068 Meter-to-USB Adapter for programming, PDA7485-I RS-232 to RS-485 Isolated Converter (Cable not included), PDA8485-I USB to RS-485 Isolated Converter (Cable not included).

  • Page 11: Product Ratings And Approvals

    For European Community: • If the scanner is installed in a high voltage The PD6830X must be installed in accordance with environment and a fault or installation error occurs, the ATEX directive 2014/34/EU, and the product cer- high voltage may be present on any lead.

  • Page 12: Installation

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Installation Mounting For Installation in USA: The PD6830X must be in- The PD6830X has two slotted mounting flanges that stalled in accordance with the National Electrical may be used for pipe mounting or wall mounting.

  • Page 13: Cover Jam Screw

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Cover Jam Screw Observe all safety regulations. Electrical wiring • The cover jam screw should be properly installed should be performed in accordance with all once the scanner has been wired and tested in a safe agency requirements and applicable national, environment.

  • Page 14: Wiring Diagrams

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Wiring Diagrams RS-485 Signal Connections The scanner includes a 3-wire RS-485 serial connec- DC Power Connection tion. The cabling used for an RS-485 serial communi- cations network should always be a high quality cable DC power is wired to terminals P+ and COM as shown such as Belden 8162 or Alpha 6203C.

  • Page 15: Setup And Programming

    Be careful to avoid triggering multiple buttons or software, visit predig.com/scanview-ex. reaching across one button location to press another. SafeTouch Buttons The PD6830X is equipped with four sensors that op- erate as through-glass buttons so that it can be pro- grammed and operated without removing the cover...

  • Page 16: Safetouch Button Tips And Troubleshooting

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual SafeTouch Button Tips and Troubleshooting The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against false triggering, however it is recommended that the SafeTouch Buttons be turned off (slide THRU-GLASS...

  • Page 17: Buttons And Display

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Buttons and Display Decimal Display Description Symbols (-2 Models) High Alarm Low Alarm Settings Lockout Password Enabled SafeTouch Power Save/Disable Flashing: Temporarily Disabled Due to Mechanical Button Feet & Inches Display Description Symbols (-L Models)

  • Page 18: Setting Numeric Values

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Setting Numeric Values The numeric values are set using the Right and Up arrow buttons. Press Right arrow to select next digit and Up arrow to increment digit. The digit being changed blinks. Press the Enter button, at any time, to accept a set- ting or Menu button to exit without saving changes.

  • Page 19: Main Menu

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Main Menu Display Parameter Action/Setting Set Modbus Response TIMEOUT Display Functions & Messages communication Timeout response timeout The scanner displays various functions and messag- Set number of retires Retries RETRIES es during setup, programming, and operation. The...
  • Page 20 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Enter to edit PV tag Enter the transmit Transmit Delay TXDELAY delay Units Enter to edit PV units UNITS Select parity mode Parity PARITY Display Decimal Set the PV display DISP.

  • Page 21: Main Menu Programming

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Main Menu Programming Select Operating Mode (MODE) The main menu is used to navigate the programming The Mode menu is used to select master, slave, or menus and separates the most commonly used snooper operating mode. Only one of these modes functions.

  • Page 22: Master Mode (Master)

    Select the Modbus function code necessary to read the device. Use the Up and Down arrows to select the appropriate function code, and press Enter to accept the function code. See the PD6830X Modbus Register Table available at www.predig.com for more information on function codes.

  • Page 23: Poll Time (T Poll)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Register Number (ReG NUM) Poll Time (T POLL) Enter the Modbus register number of the PV infor- Enter the time between read command sequences. In mation on the Modbus slave device defined in the other words, how often the display values are updated Slave ID parameter.

  • Page 24: Slave Mode (Slave)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Slave Mode (SLAVE) Enable/Disable PV (ENABLE, DISABLE) In Slave mode, a Modbus master may write up to 16 Enable or disable the Modbus PV. Disabled PVs will Modbus PVs to the scanner, which can then display require no additional configuration.

  • Page 25: Snooper Mode (Snooper)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Snooper Mode (SNOOPER) Snooper Mode PV Configuration (PV NUM) In Snooper mode, the scanner will act as a Modbus The PV Number menu is used to enable and disable network packet sniffer. The Snooper mode is used to each Modbus PV 1 to 16.

  • Page 26: Setup The Display (Setup)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Setup the Display (SETUP) Setting Up the Display (DISPLAY) The Setup menu is used to select what information The Display menu is used to set parameters to show will be displayed on the top and bottom display.

  • Page 27: Top Display (Topdsp)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Top Display (TOPDSP) Bottom Display Display Parameter Description Note: The Top Display menu does not appear on feet Selection Selection and inches display models. Display tag The Top Display menu sets what Modbus PV...

  • Page 28: Pv Display Setup (Pvsetup)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual PV Display Setup (PVSETUP) Enter Modbus PV Tag (TAG) Each Modbus PV may have a unique programmable The PV Display Setup menu is used to configure the tag to identify the PV while the display is scanning. To...
  • Page 29 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Scale Modbus PV to Engineering Units (SCALE) The Modbus PVs may be scaled to reflect different engineering units than the data read out of the Modbus slave device register. To do this, use the Scale menu to select the type of scale desired.
  • Page 30 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Factor (FACTOR) Linear (LINEAR) Factor scaling uses a conversion factor for scaling a Linear scaling is used to convert a linear scale of PV number of PV register counts to a single display to display value.

  • Page 31: Math Channel Display Setup (Math)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Math Channel Display Setup (MATH) The Math Channel Display Setup menu is used to configure the display options for each of the four math channels, CV1 to CV4. The Menu will only display the math channels that have been enabled. See Math Channel (CV1 to CV4) Programming (MATH) on page 41 for details on programming the math functions.
  • Page 32 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Math Display Format (FORMAT) Set Display Decimal Point (DISP. D P) The Math Display Format menu is used to configure the display format for each math channel. The Math Select the display decimal point location for the math Display Format must be set to display on either the channel value.

  • Page 33: Tank Size Indicator (Tanksz)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Tank Size Indicator (TANKSZ) The Tank Size menu defines the 100% full level for the 20-segment tank level indicator on feet and inches display models. This menu is not present in decimal display models. All PV values displayed on the top line feet and inches display will use this tank level indicator.

  • Page 34: Serial Communications Settings (Comm)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Serial Communications Settings Scanner Modbus ID (SCAN ID) (COMM) The Scanner Modbus ID menu sets the Modbus ad- dress (ID) of the scanner. The scanner Modbus ID may be programmed between 1 and 247. When using...

  • Page 35: Advanced Menu

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Advanced Menu Display Parameter Action/Setting Set analog output Source SOURCE Display Functions & Messages reference variable Set PV as analog output Process The scanner displays various functions and messag- source, can select any Variable 1 es during setup of advanced features.
  • Page 36 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Display Parameter Action/Setting Display Parameter Action/Setting Refer to pulse input Disable log number Gate Disable GATE DISABLE manual Enable Enable log number ENABLE Filter FILTER Interval Set interval log time INTERVL Low-Flow CUTOFF Cutoff...

  • Page 37: Advanced Menu Programming (Advance)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Advanced Menu Programming (ADVANCE) To simplify the setup process, functions not needed for most applications are located in the Advanced menu. Access the Advanced menu features by pressing Enter at the Advance menu in the Main Menu defined on page 19.

  • Page 38: Open Collector Outputs (Output)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Open Collector Outputs (OUTPUT) Output 1 and 2 Setup (OUT 1, OUT 2) The scanner is equipped with two NPN open collector The function of open collector output 1 and 2 is con- outputs that may be set up for pulse outputs, alarms, figured using the Off (OFF), Pulse (PULSE), Alarm timed pulses, or turned off.
  • Page 39 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Quadrature Pulse Output (QUAD) The pulse output set to quadrature will duplicate the other open collector output, but lag by ¼ duty cycle (90 degrees out of phase). For example, Out 1 will follow Out 2, if Out 1 is set to QUAD. Only one output should be set to QUAD.

  • Page 40: Scaling The 4-20 Ma Analog Output (Aout)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Force On State (ON) Scaling the 4-20 mA Analog Output This alarm mode forces the output to be active, or on. (Aout) This mode is primarily used to test alarm systems. The Analog Output menu is used to program the Force Off State (OFF) 4-20 mA output based on display values.

  • Page 41: Enter Display And Output Values

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Enter Display and Output Values Math Channel (CV1 to CV4) Programming (MATH) To scale the analog output, enter display value 1 and a corresponding analog output value for this display, The scanner includes four math channels, CV1 to and enter display value 2 and a corresponding analog CV4.
  • Page 42 PD6830X Explosion-Proof Modbus Scanners Instruction Manual The available math functions are detailed below. The available parameters for PAR1, PAR2, and PAR3 shown above are detailed below. Math Function Equation Parameter Description Selection Selection Addition PAR1 + PAR2 The scaled PV1 value;...

  • Page 43: Setting Up Passwords (Passwrd)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Entering a Constant Value To enter a constant value, press Enter to select Did you forget the passwords? The password • Constant (CONST). Value (VALUE) will display. Press may be disabled by entering a master password.

  • Page 44: Custom (Custom)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Custom (CUSTOM) Custom Menu Parameters The Custom menu is used to modify the initial programming menus that appear in the Main Menu Parameter/Menu Action Display when the Menu button is pressed in Run Mode.

  • Page 45: System (System)

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual System (SYSTEM) The system function is used to set the real time clock, set daily data log times, enable/disable the backlight, access analog output controls used in troubleshooting, store, restore, and backup restore feature, enable/disable the battery power alert sym- bol on the display, and review basic system identifi- cation information.
  • Page 46 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Data Log Setup (DATALOG) Log Time and Log Interval There are two ways to configure the time when a data The Data Log menu is used to setup and enable the log record is recorded. The Log Time feature allows data log functions.
  • Page 47 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Log Time Setup (LOGTIME) Once the log records are displayed, use the Enter key to display variable within the same log and move The Log Time menu contains four log events (LOG 1 to the next log. Use the Up and Right arrows to move to LOG 4).
  • Page 48 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Backup & Restore (BACKUP) Information (INFO) The scanner saves all parameter settings, and no The Information menu is part of the System features reprogramming is necessary when power is lost and menu. It shows software identification number, restored to the scanner.

  • Page 49: Operation

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Operation SafeTouch Power Save Mode Symbol shown on -2 decimal models only Front Panel Buttons Operation SafeTouch buttons enter a power saving mode after three minutes of inactivity. This mode is indicated by a power symbol ( ) appearing in the lower right of the display.

  • Page 50: Pause/Start Automatic Scanning

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Pause/Start Automatic Reset Scanner to Factory Scanning Defaults Automatic scanning will cycle through the enabled Reset to factory defaults will restore most scanner Modbus PVs and math channel CVs. The time each parameters to their factory default setting.

  • Page 51: Factory Defaults & User Settings

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Factory Defaults & User Settings The following table shows the factory setting for most of the programmable parameters on the scanner. Next to the factory setting, the user may record the new setting for the particular application.
  • Page 52 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Parameter Display Default Setting User Setting & Notes PV Setup PVSETUP PV 1 PV 1 Format Top Display FORMAT (Decimal Display Models) Format Ft-In-16 FORMAT (Feet & Inches Display Models) PV 1 Units FEET...
  • Page 53 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Parameter Display Default Setting User Setting & Notes Factor Value 1.000 VALUE PV 4 PV 4 Format Top Display FORMAT (Decimal Display Models) Format Ft-In-16 FORMAT (Feet & Inches Display Models) PV 4 Units...
  • Page 54 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Parameter Display Default Setting User Setting & Notes Channel 1 None CV 1 Channel 2 None CV 2 Channel 3 None CV 3 Channel 4 None CV 4 Password PASSWRD Parameter Lock Password 00000 (unlocked) PASS Additional Parameters &...

  • Page 55: Application Examples

    In this application we have a system consisting of four MTS LP-Series multivariable tank level gauges connected to a PD6830-AX0-I-2 displaying product level, interface level, and average temperature. The PD6830X is setup for Master mode, and it is polling the Modbus transmitters.
  • Page 56 PD6830X Explosion-Proof Modbus Scanners Instruction Manual The following table shows the PD6830X setup to work with the MTS LP-Series gauges. Parameter PD6830X Description/Comment Display Mode Master Enable PV1 Slave ID Function Code Register PV1 30001 Tank 1 Product Level Data Type...
  • Page 57 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Parameter PD6830X Description/Comment Display Enable PV7 Slave ID Function Code Register PV7 30001 Tank 3 Product Level Data Type Long integer Binary, Signed Byte Order 1234 Enable PV8 Slave ID Function Code Register PV8...
  • Page 58 PD6830X Explosion-Proof Modbus Scanners Instruction Manual Parameter PD6830X Description/Comment Serial Communications Scanner ID Must be Unique on the Network Baud 4800 bps Must Match All Network Devices Transmit Time Delay 50 ms Parity None 1 Must Match All Network Devices...

  • Page 59: Example 2: Snooper Displaying Flow Rate From Modbus Flow Meters

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Example 2: Snooper Displaying Flow Rate from Modbus Flow Meters In this application we have a system consisting of two Modbus enabled flowmeters connected to a SCADA system operated out of a control room. A Modbus PLC polls the data out of the flowmeters. A PD6830-AX0-I-2 has been added to the system as a Modbus Snooper, to provide the operators an easy to read field display near the flow lines.
  • Page 60 PD6830X Explosion-Proof Modbus Scanners Instruction Manual The following table shows the PD6830X setup to work with two Modbus flowmeters. Parameter PD6830X Description/Comment Mode Snooper Enable PV1 Slave ID Flow Meter 1 Address Function Code Register PV1 40001 Flow Meter 1 Rate...

  • Page 61: Troubleshooting

    PD6830X Explosion-Proof Modbus Scanners 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 Diagnostics menu and consult the recommendations described below.

  • Page 62: Quick User Interface Reference

    PD6830X Explosion-Proof Modbus Scanners Instruction Manual Quick User Interface Reference Pushbutton Function Go to Main menu. Back out one level of programming. Hold to enter Advanced menu. MENU Return to previous display variable. PREV Move to next digit or decimal point position.

  • Page 63: Eu Declaration Of Conformity

    ATEX Quality Assurance Notification No.: SIRA 10 ATEX M462 ATEX Notified Body for Quality Assurance: CSA Group Netherlands B.V., NB 2813 Utrechtseweg 310 6812 AR, Arnhem, Netherlands Signed for and on behalf of Precision Digital Corporation: Name: Jeffrey Peters Company: Precision Digital Corporation Title:...
  • Page 64 PD6830X Explosion-Proof 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...

This manual is also suitable for:

Pd6830-ax0-i-2Pd6830-axa-i-2Pd6830-ax0-i-lPd6830-axa-i-lPd6830 series

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