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Moxa Technologies ioPAC 8500 series, Hardware User Manual

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Moxa Technologies ioPAC 8500 series Hardware User Manual Download Page 15

ioPAC 8500 Hardware 

Installation 

 

2-5 

 

ATTENTION 

This product is intended to be supplied by a Listed Power Unit with output marked “LPS” and rated for 9-48 VDC 
(minimum requirements). For railway rolling stock applications, these devices must be supplied by a galvanic 
isolated power supply with design based on the EN 50155 standard. 

 

Installing a microSD Card 

The ioPAC is equipped with one slot for a microSD card. The card reader slot is located inside the ioPAC device, 
so you will need to unscrew and remove the card cover to install your microSD card. When inserting a microSD 
card, remember to keep the front edge of the card facing down. 

Follow these steps to remove or install a microSD card: 

1.

 

Remove the screw holding the card cover in place. 

 

2.

 

(a) Insert the microSD card into the microSD card slot, or 
(b) Remove the microSD card from the microSD card slot. 

 

3.

 

Fasten back the screw holding the card cover in place. 

 
 
 
 
 

Summary of Contents for ioPAC 8500 series

Page 1: ...ioPAC 8500 Hardware User s Manual Edition 3 0 September 2017 www moxa com product 2017 Moxa Inc All rights reserved ...

Page 2: ...s to this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Moxa assumes no responsibility for its use or for any infringements on the rights of third parties that may result from its use This product might include unintentional technical or typographical errors Changes are periodic...

Page 3: ...n LEDs LED1 and LED2 2 7 IEC 61131 3 Compliant LEDs R S and ERR 2 8 Communication LEDs 2 8 The Toggle Switch 2 8 In IEC 61131 3 Models 2 8 In C C Models 2 8 Toggle Switch Factory Reset Process 2 9 Connecting to the Network 2 9 Ethernet Communication 2 9 Serial Connectivity 2 12 Connecting to a Serial Device 2 12 Serial Console Debug Port 2 13 Battery 2 15 3 The RTUxpress Utility 3 1 RTUxpress Intr...

Page 4: ... covered in this chapter Overview Package Checklist Appearance and Dimensions Appearance Dimensions unit mm inch Hardware Block Diagrams ioPAC 8500 CPU Board Block Diagram Product Hardware Specifications Product Selection Guide Specifications ...

Page 5: ...Trunking ready and two 3 in 1 serial ports With Moxa s Active OPC Server and DA Center the ioPAC 8500 series provides a comprehensive solution for data acquisition and control applications in harsh environment Package Checklist ioPAC 8500 The ioPAC 8500 ships with the following items ioPAC 8500 controller Serial console cable C C models only Documentation and software CD 85M Modules 85M modules sh...

Page 6: ...ction 1 3 Appearance and Dimensions Appearance ioPAC 8500 Modular Head The following figures depict ioPAC 8500 modular heads There are two types of modular heads both have dual Ethernet ports but one is RJ45 and the other is M12 ...

Page 7: ...ioPAC 8500 Hardware Introduction 1 4 Dimensions unit mm inch ioPAC 8500 2 ioPAC 8500 5 ioPAC 8500 9 ...

Page 8: ...s RJ45 C C ioPAC 8500 9 RJ45 C T 9 slots RJ45 C C ioPAC 8500 2 M12 C T 2 slots M12 C C ioPAC 8500 5 M12 C T 5 slots M12 C C ioPAC 8500 9 M12 C T 9 slots M12 C C ioPAC 8500 2 RJ45 IEC T 2 slots RJ45 IEC ioPAC 8500 5 RJ45 IEC T 5 slots RJ45 IEC ioPAC 8500 9 RJ45 IEC T 9 slots RJ45 IEC ioPAC 8500 2 M12 IEC T 2 slots M12 IEC ioPAC 8500 5 M12 IEC T 5 slots M12 IEC ioPAC 8500 9 M12 IEC T 9 slots M12 IEC...

Page 9: ...kV ESD for all signals Serial Communication Parameters Parity None Even Odd Data Bits 7 8 Stop Bits 1 2 Flow Control RTS CTS XON XOFF Baudrate 300 bps to 921 6 Kbps Serial Signals RS 232 TxD RxD DTR DSR RTS CTS DCD GND RS 422 Tx Tx Rx Rx GND RS 485 4w Tx Tx Rx Rx GND RS 485 2w Data Data GND Software Characteristics Automation Languages C C IEC 61131 3 Protocols Modbus TCP RTU master slave SNMPv1 S...

Page 10: ...fety UL 508 EMC EN 55032 EN 55024 EMI FCC Part 15 Subpart B Class A CISPR 22 EMS IEC 61000 4 2 ESD Contact 6 kV Air 8 kV IEC 61000 4 3 RS 80 MHz to 1000 MHz 3 V m 1400 MHz to 2100 MHz 3 V m 2100 MHz to 2700 MHz 1 V m IEC 61000 4 4 EFT Power 1 kV Signal 0 5 kV IEC 61000 4 5 Surge Power 2 kV L PE 1 kV L L Signal 1 kV L L 2 kV L PE IEC 61000 4 6 CS 3 V IEC 61000 4 8 PFMF 3 A m Rail Traffic EN 50155 E...

Page 11: ... Module Installation Procedure Power On Configuring Power Powering on the ioPAC Controller Installing a microSD Card ioPAC 8500 LED Indicators System LEDs C C Version LEDs LED1 and LED2 IEC 61131 3 Compliant LEDs R S and ERR Communication LEDs The Toggle Switch In IEC 61131 3 Models In C C Models Toggle Switch Factory Reset Process Connecting to the Network Ethernet Communication Serial Connectivi...

Page 12: ...pring loaded bracket is locked in place push the recessed button to release it Once released you should feel some resistance from the spring as you slide the bracket up and down a few millimeters in each direction STEP 2 Insert the top of the DIN rail into the top slots on the DIN rail attachment plate STEP 3 The DIN rail attachment unit will snap into place as shown in the illustration below Remo...

Page 13: ...Procedure If required for your application the wall mounting kit can be purchased separately as an optional accessory STEP 1 Use screws to attach the wall mounting kit to the back of the ioPAC 8500 as shown below STEP 2 Use screws to fix the wall mounting kit to a wall ...

Page 14: ...oval After installing a new module it could take about ten seconds for the system to recognize and activate the module at which point the module s LED will turn green WARNING When the system is powered on do not install more than one module at a time If you need to install multiple modules wait until the most recently installed module s LED turns GREEN before installing the next module Configuring...

Page 15: ... The ioPAC is equipped with one slot for a microSD card The card reader slot is located inside the ioPAC device so you will need to unscrew and remove the card cover to install your microSD card When inserting a microSD card remember to keep the front edge of the card facing down Follow these steps to remove or install a microSD card 1 Remove the screw holding the card cover in place 2 a Insert th...

Page 16: ...ioPAC 8500 Hardware Installation 2 6 ioPAC 8500 LED Indicators There are 9 LEDs on the ioPAC controller ioPAC 8500 C C Version ioPAC 8500 C C Version ...

Page 17: ... data Tx Amber Receiving data Rx Off disconnected System LEDs PWR Power LED The Power PWR LED indicates the status of the system power When the system is on this LED will turn green and when the system power is off this LED will be off RDY Ready LED The Ready RDY LED indicates the status of the system s kernel When the LED is green the system kernel is ready When the LED is green and blinking the ...

Page 18: ...two Ethernet ports with the LAN1 and LAN2 LEDs used to represent the status of the two connections When the LED is green data is transmitting at 100 Mbps When the LED is amber data is transmitting at 10 Mbps When the LED is blinking data is being transmitted When the LED is off there is no Ethernet connection or the Ethernet connection has been disconnected The Toggle Switch The toggle switch func...

Page 19: ...he LAN port are made through an RJ45 or M12 connector on the module The wiring and pin connections for these connectors are described in separate sections below TCP IP Settings Dual Speed Functionality The ioPAC 8500 s Ethernet ports auto negotiate with the connected devices and then use the fastest data transmission rate supported by both devices The following table shows the TCP IP parameters su...

Page 20: ...sed to connect to Ethernet enabled devices Most users configure these ports for Auto MDI MDI X mode in which case the port s pinouts are adjusted automatically depending on the type of Ethernet cable used straight through or cross over and the type of device NIC type or HUB Switch type connected to the port The Auto MDI MDI X function M12 connector allows users to connect the ioPAC 8500 s 10 100Ba...

Page 21: ... to M12 4 pin M Straight Through Cable Wiring M12 4 pin M to RJ45 8 pin Cross Over Cable Wiring M12 4 pin M to RJ45 8 pin Straight Through Cable Wiring ATTENTION Configuring the two LAN ports on the same ioPAC RTU controller to the same network domain e g 192 168 1 1 and 192 168 1 2 is not recommended ...

Page 22: ...ller are connected to a managed switch on an Ethernet network running SCADA software For more details regarding configuration setup refer to the ioPAC RTU Software User s Manual Serial Connectivity Connecting to a Serial Device The ioPAC RTU is equipped with two 3 in 1 serial ports that support RS 232 422 485 making it more convenient to connect field serial devices Pin RS 232 RS 422 and 4 wire RS...

Page 23: ...he following diagram shows the 4 pin serial connector and pin connections Pin Assignment for the Serial Console Port Serial Console Default Settings Pin Definition 1 TxD 2 RxD 3 NC 4 GND Parameter Value Baudrate 115200 bps Parity None Data bits 8 Stop bits 1 Flow Control None Terminal VT100 We recommend using Moxa PComm Terminal Emulator to connect to the serial console The following steps describ...

Page 24: ...ch COM port is connecting to the Moxa RTU and use the following configuration settings 115200 8 none 1 6 Click on the Terminal tab and configure the Terminal Type to VT100 Click OK to proceed 7 The serial console will be displayed on the terminal screen ...

Page 25: ...e Clock RTC Rechargeable battery VL2020 for SRAM Sustains at least 1 week without power supply Capacity 20 mAh Typical consumption 25 C 4 μA 5 year warranty Non rechargeable battery BR2032 for RTC Sustains at least 5 years without power supply Capacity 195 mAh Typical consumption 25 C 2 μA 5 year warranty Caution Do NOT attempt to replace the battery Contact your local dealer for replacement assis...

Page 26: ...anaged and configured over an Ethernet using RTUxpress which provides easy access to all status information and ready to run service settings The following topics are covered in this chapter RTUxpress Introduction Quick Start User Interface Device and Service Configuration Settings Page Log Message Window ...

Page 27: ... value of a pre defined internal variable to trigger a logging service From the point of view of the engineer responsible for programming the focus has changed from incorporating lots of APIs to just configuring simple tags instead This change of focus greatly reduces the programming effort Moxa s ioPAC programmable controllers provide ready to run services including alarms data logging and commun...

Page 28: ...uick Start window to appear the next time you log in select the Do not show this Quick Start again checkbox before proceeding New Project When you create a new ioPAC 8600 project for ioPAC 8600 device configuration you can specify the Project Name set the Product Series to ioPAC 8600 and choose the C C or IEC 61131 3 programming language from the Select Device dropdown box Click OK to proceed ...

Page 29: ...ect the model of power module you are using from the Power 1 Module dropdown box ioPAC 8600 9 slot and 12 slot backplane modules support redundant power modules If you are using either a 9 slot or 12 slog module you can select an additional power module from the Power 2 Module dropdown box NOTE You must specify the same power module models in the Power 1 Module and Power 2 Module dropdown boxes Op...

Page 30: ... 8500 Hardware The RTUxpress Utility 3 5 Help Click the Help button to open the RTUxpress help utility and then select a help topic from the left menu Exit Click the Exit icon to close the RTUxpress utility ...

Page 31: ...erface The RTUxpress interface is divided into six main areas Menu bar Tool bar Device configuration options Service configuration options Settings panel Log message panel Log Message Window Device and Service Configuration Settings Page Tool Bar Menu Bar ...

Page 32: ...project Export Configuration to ioPAC Export the configuration file to an ioPAC Programmable Controller Import Configuration from ioPAC Import the configuration file from an ioPAC Programmable Controller Export Tag Name to C Header File Export the tag name to a C header file for use in a C C program Exit Close the RTUxpress utility Tools The following options are available under the Tools menu ite...

Page 33: ...e settings for the RTUxpress project Device Information Get the device information for a particular device NOTE A username and password are required to retrieve device information the default Username Password is moxa moxa for the ioPAC 8600 CPU30 series and root root for other ioPAC series products ...

Page 34: ...ioPAC 8500 Hardware The RTUxpress Utility 3 9 Time Sync Synchronize the device time with the PC s time or set the time manually Modify Password Modify the administrator password ...

Page 35: ...ioPAC 8500 Hardware The RTUxpress Utility 3 10 Reboot Device Reboot the ioPAC Programmable Controller ...

Page 36: ...Reset all settings and configurations to default settings IEC 61131 3 Setting a Resource information Indicates how many resources are supported by the ioPAC and whether or not the resources are running b ISaGRAF Runtime Engine Reset to Default Deletes all resources and programs in the ioPAC and restarts the ISaGRAF runtime engine ...

Page 37: ...ormance However we recommend enabling it so that runtime details will be logged when the ioPAC experiences unexpected errors Diagnostic Testing Tool The tool can be used to pre test or monitor the IO status of the device Take the following steps to use the tool Step 1 Start the tool key in an IP address or auto search for a device and then then click submit ...

Page 38: ...tween the ioPAC and the PC Step 3 When a connection has been established the slot and API information will be displayed in the PuTTY window Use the commands listed on the screen to monitor the device NOTE The tool may affect the operation of the ioPAC If you want to use the tool when the ioPAC is operating we strongly suggest that you to stop the ioPAC first to avoid unexpected results ...

Page 39: ...nfigure the preferences shown below Network Interface Allows you to select the network interface Help View Help Opens the RTUxpress chm help utility Moxa ioPAC ISaGRAF Reference Manuals Opens the Moxa_ioPAC_ISaGRAF chm utility About RTUxpress it will show the RTUxpress utility version ...

Page 40: ...roject Add Module Add an ioPAC I O module Delete Module Delete an ioPAC I O module Device Information Get device information Time Sync Device time synchronization Export Configuration to ioPAC Export a configuration file to the ioPAC Programmable controller Import Configuration from ioPAC Imports the configuration file from ioPAC Programmable Controller Help Opens the RTUxpress chm help utility ...

Page 41: ... been added to the device ioPAC also provides services Modbus SNMP Data Logging etc to reduce the developer s effort Configure the function in the service configuration page and then upload the configuration to the device The service will start working automatically Device Configuration Service Configuraion Settings Page Detailed device and configuration settings will be displayed in this window C...

Page 42: ...s The following topics are covered in this chapter 85M Module Descriptions Common Specifications Module Specifications 85M 1602 T 16 DIs sink source 24 VDC dry contact 85M 2600 T 16 DOs sink 24 VDC 85M 38XX T 8 AIs 85M 5401 T 4 serial ports RS 232 422 485 3 in 1 85M 6600 T RTDs 85M 6810 T 8 TCs ...

Page 43: ...to 85 C 40 to 185 F Ambient Relative Humidity 5 to 95 non condensing Shock IEC 60068 2 27 Vibration IEC 60068 2 6 Standards and Certifications Safety UL 508 EMC EN 55032 24 EMI FCC Part 15 Subpart B Class A CISPR 22 EMS IEC 61000 4 2 ESD Contact 6 kV Air 8 kV IEC 61000 4 3 RS 80 MHz to 1000 MHz 3 V m 1400 MHz to 2100 MHz 3 V m 2100 MHz to 2700 MHz 1 V m IEC 61000 4 4 EFT Power 1 kV Signal 0 5 kV I...

Page 44: ...port wide temperature and high isolation protection Block Diagram Specifications The following are the 85M 1602 T module s product specifications Inputs and Outputs Digital Inputs 16 channels Isolation 3K VDC or 2K Vrms Digital Inputs Sensor Type Wet contact NPN or PNP dry contact I O Mode Counter or Frequency Dry Contact On short to GND Off open Wet Contact DI to COM Off 0 to 3 VDC On 10 to 30 VD...

Page 45: ...istics Wiring I O cable max 16 AWG Connector Spring type terminal block Environmental Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 363 6 mA 3 3 VDC MTBF mean time between failure Time 1 132 561 hrs Standard Telcordia SR332 Pin Assignment and Wiring Guide The following is 85M 1602 T module s pin assignment and wiring guide ...

Page 46: ...85M Module Hardware Introduction 4 5 Wiring Guide The following wiring guide is for the 85M 1602 T module Dry Contact DI COM GND Wet Contact Source Type VCC Output VCC GND DI COM GND Sink Type DI COM Output VCC GND GND VCC ...

Page 47: ...Block Diagram Specifications The following are the 85M 2600 T module s product specifications Inputs and Outputs Digital Outputs 16 channels Isolation 3K VDC or 2K Vrms Digital Outputs Type Sink I O Mode DO or PWM Pulse Output Frequency 5 kHz Over voltage Protection 45 VDC Over current Protection 2 6 A 4 channels 650 mA Over temperature Shutdown 175 C typical 150 C min Current Rating 200 mA per ch...

Page 48: ...e Introduction 4 7 Environmental Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 257 6 mA 3 3 VDC MTBF mean time between failure Time 792 571 hrs Standard Telcordia SR332 Pin Assignment and Wiring Guide ...

Page 49: ...ioPAC 8500 Hardware 85M Module Hardware Introduction 4 8 Wiring Guide The following wiring guide is for the 85M 2600 T module Resistive Load GND DO VCC Inductive Load GND DO VCC ...

Page 50: ...ology and hot swappable functionality This module is cost effective solution for most industrial application Block Diagram The following is the 85M 38XX T module s block diagram The 85M 38XX T uses an MCU processor that has three communication interfaces SPI RS232 and USB The MCU processor accesses the ADC and SRAM by SPI whereas the 85M 38XX T module communicates with the modular head through RS ...

Page 51: ...al Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 318 2 mA 3 3 VDC MTBF mean time between failure Time 1 512 906 hrs Standard Telcordia SR332 85M 3801 T 8 analog inputs 4 to 20 mA 40 kHz Specifications Inputs and Outputs Analog Inputs 8 channels Isolation 3K VDC or 2K Vrms Analog Inputs Type Differential Resolution 16 bits I O Mode 4 to 20 mA wire off Historic...

Page 52: ... Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 315 2 mA 3 3 VDC MTBF mean time between failure Time 1 530 690 hrs Standard Telcordia SR332 85M 3811 T 8 analog inputs 0 to 10 VDC 40 kHz Specifications Inputs and Outputs Analog Inputs 8 channels Isolation 3K VDC or 2K Vrms Analog Inputs Type Differential Resolution 16 bits I O Mode 0 to 10 VDC Historical Data B...

Page 53: ...oPAC 8500 Hardware 85M Module Hardware Introduction 4 12 MTBF mean time between failure Time 1 426 112 hrs Standard Telcordia SR332 Pin Assignment The following is the 85M 38XX T module s pin assignment ...

Page 54: ...ioPAC 8500 Hardware 85M Module Hardware Introduction 4 13 Wiring Guide The following wiring guide for the 85M 38xx T module Voltage Current 4 wire 3 wire 2 wire ...

Page 55: ...elow the burnout value will be 0 The highest current of 20 mA represents raw data of 65535 Raw current data of 1 represents 0 3125 µA Burnout mode can indicate if the current analog input has burned out NOTE Refer to the ioPAC Programmable Controller Software User s Manual for the burnout mode settings NOTE Grounding the device through the earth ground pin gives 6kV ESD protection The 4 20 mA burn...

Page 56: ...8500 Hardware 85M Module Hardware Introduction 4 15 Current Data Current 0 0 mA 1 0 3125 µA 13107 4 mA 49152 15 mA 65534 20 mA 65535 20 mA Voltage Data Voltage 0 0 V 1 0 16 mV 16384 2 5 V 32768 5 V 65535 10 V ...

Page 57: ...tocol communication parameters supported by the 85M 5401 T Parameter Supported Values Baudrate 300 600 1200 2400 4800 9600 19200 38400 57600 115200 921600 bps Default 9600 bps Mode RS 232 422 485 Default RS 232 Duplex Full or Half duplex Default Full duplex Parity Odd None or Even Default None Data Bits 7 or 8 Bits Default 8 Bits Stop Bits 1 Bit View of the 85M 5401 front panel ATTENTION The ioPAC...

Page 58: ... 7 8 Stop Bits 1 2 Flow Control RTS CTS XON XOFF Baudrate 300 bps to 921 6 Kbps Serial Signals RS 232 TxD RxD RTS CTS DTR DSR DCD GND RS 422 Tx Tx Rx Rx GND RS 485 4w Tx Tx Rx Rx GND RS 485 2w Data Data GND Physical Characteristics Connector DB44 female Environmental Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 375 8 mA 3 3 VDC MTBF mean time between failure...

Page 59: ...ND 8 23 38 9 TxD1 24 CTS1 39 DCD1 10 RxD1 25 DTR1 40 11 RTS1 26 DSR1 41 GND 12 27 42 DCD0 13 TxD0 28 CTS0 43 14 RxD0 29 DTR0 44 GND 15 RTS0 30 DSR0 DB44 Female RS 422 RS 485 4 wire Pin Signal Pin Signal Pin Signal 1 RxD3 B 16 31 TxD3 A 2 TxD3 B 17 RxD3 A 32 3 18 33 GND 4 19 34 5 RxD2 B 20 35 TxD2 A 6 TxD2 B 21 RxD2 A 36 7 22 37 GND 8 23 38 9 RxD1 B 24 39 TxD1 A 10 TxD1 B 25 RxD1 A 40 11 26 41 GND ...

Page 60: ...2 27 42 13 Data0 B 28 43 14 29 Data0 A 44 GND 15 30 DB9 Pin Assignment DB9 Female RS 232 RS 422 RS 485 Pin RS 232 RS 422 RS 485 4 wire RS 485 2 wire 1 DCD TxD A 2 RxD TxD B 3 TxD RxD A Data B 4 DTR RxD B Data A 5 GND GND GND 6 DSR 7 RTS 8 CTS 9 DIP Switch DIP Switch ON OFF 1 1K Ohm Pull High Resistor 150K Ohm Pull High Resistor default 2 1K Ohm Pull Low Resistor 150K Ohm Pull High Resistor default...

Page 61: ... uses an MCU processor that has three communication interfaces SPI RS232 and USB Whereas the 85M 6600 T module communicates with the modular head through RS 232 and USB interfaces The 85M 6600 T has isolation protection up to 3K VDC or 2K Vrms Specifications Inputs and Outputs RTD Inputs 6 channels Isolation 3K VDC or 2K Vrms RTD Inputs Input Type PT50 PT100 PT200 PT500 200 to 850 C PT1000 200 to ...

Page 62: ... FSR 40 and 75 C Input Impedance 625 kohms min Physical Characteristics Wiring I O cable max 16 AWG Connector Spring type terminal block Environmental Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 201 5 mA 3 3 VDC MTBF mean time between failure Time 571 446 hrs Standard Telcordia SR332 Pin Assignment The following is the 85M 6600 T module s pin assignment ...

Page 63: ...ioPAC 8500 Hardware 85M Module Hardware Introduction 4 22 Wiring Guide The following wiring guide is for the 85M 6600 T module 3 wire 2 wire ...

Page 64: ... USB Whereas the 85M 6810 T module communicates with the modular head through RS 232 and USB interfaces The 85M 6810 T has isolation protection up to 3K VDC or 2K Vrms Specifications Inputs and Outputs Analog Inputs 8 channels Isolation 3K VDC or 2K Vrms Thermocouple Inputs Sensor Type J 0 to 750 C K 200 to 1250 C T 200 to 350 C E 200 to 900 C R 50 to 1600 C S 50 to 1760 C B 600 to 1700 C N 200 to...

Page 65: ...aracteristics Wiring I O cable max 16 AWG Connector Spring type terminal block Environmental Limits Operating Temperature 40 to 75 C 40 to 176 F Power Requirements Input Current 175 5 mA 3 3 VDC MTBF mean time between failure Time 2 324 891 hrs Standard Telcordia SR332 Pin Assignment The following is the 85M 6810 T module s pin assignment ...

Page 66: ...rdware 85M Module Hardware Introduction 4 25 Wiring Guide The following wiring guide is for the 85M 6810 T module Voltage Thermocouple NOTE Grounding the device through the earth ground pin gives 6 kV ESD protection ...

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