Issued Mar-06 Communications | Emerson ROC827 guide

ROC827 Instruction Manual

second per poll for each device, so with five devices per channel the maximum poll time for the channel would be five seconds.

Note: The ROC827 does not support HART devices configured in Burst mode (in which the device sends information without a prior request). If you have a HART device configured in Burst mode, use a hand-held Field Communicator to turn off Burst mode before you connect the device to the ROC827.

The HART module provides “loop source” power (+T) and four channels (1+ through 4+) for communications. The +T power is current-limited.

When powered by the ROC827, terminal +T is connected in parallel to the positive (+) terminal on all of the HART devices, regardless of the channel to which they are connected. Channel 1+ is wired to the negative (–) terminal of a single HART device, or in parallel to the negative terminals of the devices. Likewise, channel 2+ is wired to the negative (–) terminal of a single HART device, or in parallel to the negative terminals of a second group of HART devices.

When powered by an external device, the positive (+) terminal from the power source is connected in parallel to the positive (+) terminal on all of the HART devices, regardless of the channel to which they are connected. Channel 1+ on the HART module is wired to the positive (+) terminal of the HART device. The power source negative (–) terminal is connected to the channel’s COM terminal and to the negative (–) terminal of a single HART device, or in parallel to the negative terminals of the HART devices.

Switches on the module board allow channel-by-channel selection as an Analog Input (IN) or Analog Output (OUT). The switches for Channel 2 and 4 are located on the front of the module, while the switches for channel 1 and 3 are located on the back of the module. Use a pin to move the switches to the desired state (refer to Figures 5-8 and 5-9).

Note: Always set the IN or OUT switches before wiring the switch or applying power.

Issued Mar-06

Communications

5-17

Image 109

Emerson ROC827 instruction manual Issued Mar-06 Communications

Contents

Part Number D301217X012 March Flow Computer Division Issued Mar-06 Initial issue Mar-06Revision Contents Wiring the DC Power Input Module Switched Auxiliary Output AUXSW+ and AuxswReplacing the Internal Battery K Type Thermocouple Input Modules Troubleshooting J and K Type Thermocouple Input Modules Troubleshooting Issued Mar-06 Proportional, Integral, and Derivative PID Scope of Manual Hardware Issued Mar-06 General Information ROC827 Base Unit without Expanded Backplane Power Supply Module Module 1 ROC827 with One Expanded Backplane ƒ Local Operator Interface LOI Local Port EIA-232RS-232D Central Processor Unit CPU Real-Time Clock RTC Processor and Memory Options Diagnostic MonitoringSystem Analog Inputs System AI Function Normal Range Point Number Firmware FCC Information Issued Mar-06 General Information Issued Mar-06 General Information Point vs -Point Addressing Historical Database and Event & Alarm LogSlot Number Logicals 16 pt Logicals 8 pt Flow Calculations Meter Runs and Stations Automatic Self Tests Low Power Modes Function Sequence Table FST Proportional, Integral, and Derivative PID Roclink 800 Configuration Software DS800 Development Suite Software Expanded Backplane Related Specification Sheets Issued Mar-06 Installation and Use Installation RequirementsRemoving the ROC827 from the DIN Rail Site Requirements Environmental Requirements Compliance with Hazardous Area Standards Grounding Installation Requirements Power Installation Requirements Housing 6 I/O Wiring RequirementsRequired Tools Removing and Replacing End Caps Removing and Installing Wire Channel Covers To install a module cover Removing and Installing Module CoversMounting the ROC827 on a DIN Rail To remove a module cover Side View of the ROC827 Securing the ROC827 on the DIN Rail Installing the DIN RailDIN Rail Catch DIN Rail Mount ROC800-Series Expanded Backplane EXP Removing the ROC827 from the DIN Rail Attaching an Expandable Backplane Power connector on the EXP Backplane Locking clips and tabs Removing an Expandable Backplane Central Processor Unit CPU CPU Front View Status LED Color Definitions Solution CPU Connector LocationsStatus LED Functions CPU Number Definitions Removing the CPU Module Installing the CPU ModuleElectronic components, resulting in interrupted operations License Key License Keys Incorrect Correct Installing a License Key Startup and Operation Removing a License KeyTo remove a license key Operation StartupIncorrect polarity can damage the ROC827 1 12-Volt DC Power Input Module PM-12 Power Input Module DescriptionsIssued Mar-06 Power Connections Volt dc Power Input Module Volt dc Power Input Terminal Block Connections 2 24-Volt DC Power Input Module PM-24Volt DC Power Input LED Fault Indicators Terminal Blocks Definition Volts DC Green LED on when voltage is provided to backplane Volt dc Power Input LED IndicatorsGreen LED on when voltage is provided to CPU Auxiliary Output AUX+ and AUX Other Equipment Volt dc Auxiliary Power Wiring Switched Auxiliary Output AUXSW+ and Auxsw Determining Power Consumption Process Issued Mar-06 Power Connections Estimated Power Consumption Tuning the Configuration Used Cycle Power Consumption of the Analog Input ModulesChannel Channel’s mA current Draw from +T * 1.25 Jumper set for +T @ 24 volts dc Used Cycle AO Module Base Power Consumption of the Analog Output Modules100 mA @ 12 volts dc 1200 mW Channel Channel’s mA current Draw from +T Used Cycle DI Module Base Power Consumption of the Discrete Input Modules Used Cycle Do Module Power Consumption of the Discrete Output Modules DOR Module 10. Power Consumption of the Discrete Output Relay Modules Channel Per Active LED Maximum PI Module MVS Module 12. Power Consumption of the MVS Modules 14. Power Consumption of the Thermocouple Modules 13. Power Consumption of the RTD Modules15. Power Consumption of the Hart Modules Used Cycle RTD Module 65 mA @ 13.25 volts dc Table Total 16. Power Consumption of Other Devices Removing a Power Input ModuleTotal Connecting the ROC827 to Wiring Installing a Power Input ModuleProperty damage Volts dc Power Supply and BAT+ / BAT- Wiring Wiring the DC Power Input Module Power Supply Terminal Block Wiring the External BatteriesSolar Regulator Panel Batteries Amp Fuse Issued Mar-06 Power Connections 17. Replacement Battery Types Replacing the Internal Battery Name Form Number Part Number 18. Power Input Module Specification Sheets I/O Module Overview Issued Mar-06 Input/Output Modules Slot #1 or Front View Side ViewComm Slot #2 or Installation Installing an I/O Module Earth ground Removing an I/O Module Analog Input Modules Wiring I/O Modules Current Loop Device 4-20mA Precision +T 12 / 24 V dc Jumper Resistor +T 12 / 24 V dc Jumper Analog Output Modules Discrete Input Modules Field WiringRepresentative Internal Circuit Discrete Output Modules Discrete Input Module Field Wiring Representative Internal Circuit Field Wiring With powered devices may cause improper operation or damageDiscrete Output Relay Modules Pulse Input Modules 10. Discrete Output Relay Module Field Wiring 11. Pulse Input J4 Jumper Set to +12 RTD Input Modules Representative Field Wiring Internal Circuit RTD Signal Routing Connecting the RTD WiringSignal Terminal Designation CH 1 REF Constant Current + CH 1 + Wire RTD Red Jumper Red RTD WiringTerminal Wire RTD K Type Thermocouple Input Modules De-calibration 15. Type J and K Thermocouple Wiring Sheathed Wiring United States Color CodingModule to ground Supported I/O Module Specification Sheets Issued Mar-06 Input/Output Modules Communications Ports and Modules Overview Issued Mar-06 CommunicationsBuilt-in Communications and Optional Communication Modules Communications Built-in on CPU Optional Module Signals Action Communication LED Indicator Definitions Example RS-485 Communications Module Installing Communication Modules Removing a Communications Module Local Operator Interface LOI Wiring Communications Modules RJ-45 to EIA-232 RS-232 Null-modem Cable Signal Routing Built-in LOI EIA-232 Signal RoutingEIA-232 ROC800 RJ-45 Pins RS-232 On ROC800 Series Ground Common Receive Ethernet Communications Using the LOIRed Green Brown Gray Signal Function Ethernet Signal LEDs BASE-T Crossover Cable EIA-232 RS-232 Serial Communications Signal LED Function Built-in EIA-232 RS-232 Signal Routing Comm2Lit when Comm2 ready to send is not active Lit when Comm2 data terminal ready is active 10. EIA-485 RS-485 Signal Routing Comm3, Comm4, and Comm5 EIA-422 RS-422 Signal Routing Comm3, Comm4, and Comm5Signal RS-422 Function Terminal Signal RS-485 Function Terminal 12. EIA-485 RS-485 Module Dial-up Modem Communications ModuleJumper Terminated Not Terminated TER Out Half Full Signal Pin 14. Modem Signal Routing Comm3, Comm4, and Comm513. RJ-11 Field Connections Tip Ring 15. MVS Termination Multi-Variable Sensor MVS Interface ModulesTerminated Not Terminated Jumper MVS Jumper J4 Shown Not Terminated 16. MVS Signal Routing Comm3, Comm4, and Comm5 Hart Interface Module Issued Mar-06 Communications Hart Channels 1 and 3 back side of board Hart Interface Module Field Wiring Hart Channels 2 and 4 front side of board CH2 I/O Switch CH4 I/O Switch D301213X012 17. Related Documentation Issued Mar-06 Troubleshooting Troubleshooting J & K Type Thermocouple Input ModulesGuidelines Serial Communications Checklists2 I/O Point Software Powering UpMVS Module Preserving Configuration and Log Data ProceduresRestarting the ROC827 Analog Input Module Typical Configuration Values Troubleshooting Analog Input ModulesSelect File Download Damage Value = Vmultimeter 1 ⎟ 4 * Span + Low Reading EU Select Configuration I/O AI Points Troubleshooting Discrete Input Modules Troubleshooting Analog Output ModulesSelect Configuration I/O AO Points Select Scanning Enabled and click Apply Troubleshooting Discrete Output Relay Modules Troubleshooting Discrete Output ModulesSelect Configuration I/O DI Points Troubleshooting RTD Input Modules Troubleshooting Pulse Input ModulesSelect Configuration I/O PI Points Equipment Required Select Configuration I/O RTD Point Troubleshooting J and K Type Thermocouple Input Modules To test the thermocouple To test the thermocouple module Issued Mar-06 Troubleshooting Calibration Issued Mar-06 CalibrationPreparing for Calibration Issued Mar-06 Calibration Area AnalogAttribute Built-in I/O Comm Module ConfigurationTree Crosstalk EIA-422 EIA-232RS-422 EIA-485 Firmware Input Highway Addressable Remote TransducerInput Register Local Port MAC Address Manual modeModbus Msec Point PresetPoint Type Protocol Script RX or RXDSoft Points System Issued Mar-06 Glossary Alarming Battery +12 V dcDiagnostic Issued Mar-06 Index Wiring Dc Power Supply and CHG+ and CHG Dc Power Supply and BAT+ / BATFunction Sequence Table FST Issued Mar-06 Index Discrete Output Relay Fuse InstallingEIA-422/485 RS-422/485 Communications Local Operator Interface Public Switched Telephone Networks Power Input modulesSetup Specifications Analog Input Module Typical Configuration MVS Signal Routing Comm3, Comm4Using Wiring Emerson Process Management Flow Computer Division