RTD Input Modules | Emerson ROC827 guide

ROC827 Instruction Manual

	Representative	Field Wiring
	Internal Circuit	Field Wiring
	Internal Circuit

12KHz PI FILTER &

LEVEL DETECTION

12KHz PI FILTER &

LEVEL DETECTION

+

-

+

-

OPEN DRAIN TYPE

OR

OPEN COLLECTOR DEVICE EXTERNALLY POWERED

CONTACT-CLOSURE DEVICE EXTERNALLY POWERED

DOC0510A

Figure 4-12. Externally Powered Pulse Input Module Field Wiring

Representative Internal Circuit

12KHz PI FILTER &

LEVEL DETECTION

PI
1	L
HC	H
	H
MO C
2	L
HC	H
	H
MO C
T+
	2 CHAN

Field Wiring

+OPEN COLLECTOR

-OR

	+T	OPEN DRAIN TYPE DEVICE
	+T	ROC800 POWERED
		ROC800 POWERED
		- +
		METER COIL

DOC0511A

Figure 4-13. ROC800-Powered Pulse Input Module Field Wiring

Note: All I/O modules are isolated on the field side. Be aware that you can induce ground loops by tying commons from various modules together.

4.9RTD Input Modules

The Resistance Temperature Detector (RTD) module monitors the temperature signal from an RTD source. The module can accommodate input from a two-, three-, or four-wire RTD source.

The active element of an RTD probe is a precision, temperature-dependent resistor made from a platinum alloy. The resistor has a predictable positive temperature coefficient, meaning its resistance increases with temperature.

Issued Mar-06

Input/Output Modules

4-14

Image 84

Emerson ROC827 instruction manual RTD Input Modules, Representative Field Wiring Internal Circuit

Contents

Flow Computer Division Part Number D301217X012 March Initial issue Mar-06 Issued Mar-06Revision Contents Switched Auxiliary Output AUXSW+ and Auxsw Wiring the DC Power Input ModuleReplacing the Internal Battery K Type Thermocouple Input Modules Troubleshooting Troubleshooting J and K Type Thermocouple Input Modules Issued Mar-06 Scope of Manual Proportional, Integral, and Derivative PID Issued Mar-06 General Information Hardware Power Supply Module Module 1 ROC827 Base Unit without Expanded Backplane ROC827 with One Expanded Backplane Central Processor Unit CPU ƒ Local Operator Interface LOI Local Port EIA-232RS-232D Processor and Memory Real-Time Clock RTC Diagnostic Monitoring OptionsSystem Analog Inputs System AI Function Normal Range Point Number FCC Information Firmware Issued Mar-06 General Information Issued Mar-06 General Information Historical Database and Event & Alarm Log Point vs -Point AddressingSlot Number Logicals 16 pt Logicals 8 pt Meter Runs and Stations Flow Calculations Low Power Modes Automatic Self Tests Proportional, Integral, and Derivative PID Function Sequence Table FST Roclink 800 Configuration Software DS800 Development Suite Software Expanded Backplane Related Specification Sheets Installation Requirements Issued Mar-06 Installation and UseRemoving the ROC827 from the DIN Rail Environmental Requirements Site Requirements Compliance with Hazardous Area Standards Power Installation Requirements Grounding Installation Requirements 6 I/O Wiring Requirements HousingRequired Tools Removing and Installing Wire Channel Covers Removing and Replacing End Caps Removing and Installing Module Covers To install a module coverMounting the ROC827 on a DIN Rail To remove a module cover Side View of the ROC827 Installing the DIN Rail Securing the ROC827 on the DIN RailDIN Rail Catch DIN Rail Mount Removing the ROC827 from the DIN Rail ROC800-Series Expanded Backplane EXP Power connector on the EXP Backplane Attaching an Expandable Backplane Removing an Expandable Backplane Locking clips and tabs Central Processor Unit CPU CPU Front View CPU Connector Locations Status LED Color Definitions SolutionStatus LED Functions CPU Number Definitions Installing the CPU Module Removing the CPU ModuleElectronic components, resulting in interrupted operations License Keys License Key Installing a License Key Incorrect Correct Removing a License Key Startup and OperationTo remove a license key Startup OperationIncorrect polarity can damage the ROC827 Power Input Module Descriptions 1 12-Volt DC Power Input Module PM-12Issued Mar-06 Power Connections Volt dc Power Input Module 2 24-Volt DC Power Input Module PM-24 Volt dc Power Input Terminal Block ConnectionsVolt DC Power Input LED Fault Indicators Terminal Blocks Definition Volts DC Volt dc Power Input LED Indicators Green LED on when voltage is provided to backplaneGreen LED on when voltage is provided to CPU Auxiliary Output AUX+ and AUX Volt dc Auxiliary Power Wiring Other Equipment Switched Auxiliary Output AUXSW+ and Auxsw Determining Power Consumption Process Issued Mar-06 Power Connections Estimated Power Consumption Tuning the Configuration Power Consumption of the Analog Input Modules Used CycleChannel Channel’s mA current Draw from +T * 1.25 Jumper set for +T @ 24 volts dc Power Consumption of the Analog Output Modules Used Cycle AO Module Base100 mA @ 12 volts dc 1200 mW Channel Channel’s mA current Draw from +T Power Consumption of the Discrete Input Modules Used Cycle DI Module Base Power Consumption of the Discrete Output Modules Used Cycle Do Module 10. Power Consumption of the Discrete Output Relay Modules DOR Module PI Module Channel Per Active LED Maximum 12. Power Consumption of the MVS Modules MVS Module 13. Power Consumption of the RTD Modules 14. Power Consumption of the Thermocouple Modules15. Power Consumption of the Hart Modules Used Cycle RTD Module 65 mA @ 13.25 volts dc Table Total Removing a Power Input Module 16. Power Consumption of Other DevicesTotal Installing a Power Input Module Connecting the ROC827 to WiringProperty damage Wiring the DC Power Input Module Volts dc Power Supply and BAT+ / BAT- Wiring Wiring the External Batteries Power Supply Terminal BlockSolar Regulator Panel Batteries Amp Fuse Issued Mar-06 Power Connections Replacing the Internal Battery 17. Replacement Battery Types 18. Power Input Module Specification Sheets Name Form Number Part Number Issued Mar-06 Input/Output Modules I/O Module Overview Front View Side View Slot #1 orComm Slot #2 or Installation Installing an I/O Module Removing an I/O Module Earth ground Wiring I/O Modules Analog Input Modules Precision +T 12 / 24 V dc Jumper Resistor Current Loop Device 4-20mA Analog Output Modules +T 12 / 24 V dc Jumper Field Wiring Discrete Input ModulesRepresentative Internal Circuit Discrete Input Module Field Wiring Discrete Output Modules With powered devices may cause improper operation or damage Representative Internal Circuit Field WiringDiscrete Output Relay Modules 10. Discrete Output Relay Module Field Wiring Pulse Input Modules 11. Pulse Input J4 Jumper Set to +12 Representative Field Wiring Internal Circuit RTD Input Modules Connecting the RTD Wiring RTD Signal RoutingSignal Terminal Designation CH 1 REF Constant Current + CH 1 + RTD Wiring Wire RTD Red Jumper RedTerminal Wire RTD K Type Thermocouple Input Modules De-calibration 15. Type J and K Thermocouple Wiring Wiring United States Color Coding SheathedModule to ground Supported I/O Module Specification Sheets Issued Mar-06 Input/Output Modules Issued Mar-06 Communications Communications Ports and Modules OverviewBuilt-in Communications and Optional Communication Modules Communications Built-in on CPU Optional Module Communication LED Indicator Definitions Signals Action Installing Communication Modules Example RS-485 Communications Module Removing a Communications Module Wiring Communications Modules Local Operator Interface LOI Built-in LOI EIA-232 Signal Routing RJ-45 to EIA-232 RS-232 Null-modem Cable Signal RoutingEIA-232 ROC800 RJ-45 Pins RS-232 On ROC800 Series Ground Common Receive Using the LOI Ethernet CommunicationsRed Green Brown Gray Ethernet Signal LEDs Signal Function EIA-232 RS-232 Serial Communications BASE-T Crossover Cable Built-in EIA-232 RS-232 Signal Routing Comm2 Signal LED FunctionLit when Comm2 ready to send is not active Lit when Comm2 data terminal ready is active EIA-422 RS-422 Signal Routing Comm3, Comm4, and Comm5 10. EIA-485 RS-485 Signal Routing Comm3, Comm4, and Comm5Signal RS-422 Function Terminal Signal RS-485 Function Terminal Dial-up Modem Communications Module 12. EIA-485 RS-485 ModuleJumper Terminated Not Terminated TER Out Half Full 14. Modem Signal Routing Comm3, Comm4, and Comm5 Signal Pin13. RJ-11 Field Connections Tip Ring Multi-Variable Sensor MVS Interface Modules 15. MVS TerminationTerminated Not Terminated Jumper 16. MVS Signal Routing Comm3, Comm4, and Comm5 MVS Jumper J4 Shown Not Terminated Hart Interface Module Issued Mar-06 Communications Hart Interface Module Field Wiring Hart Channels 1 and 3 back side of board CH2 I/O Switch CH4 I/O Switch Hart Channels 2 and 4 front side of board 17. Related Documentation D301213X012 Troubleshooting J & K Type Thermocouple Input Modules Issued Mar-06 TroubleshootingGuidelines Checklists Serial Communications2 I/O Point Powering Up SoftwareMVS Module Procedures Preserving Configuration and Log DataRestarting the ROC827 Troubleshooting Analog Input Modules Analog Input Module Typical Configuration ValuesSelect File Download Damage Select Configuration I/O AI Points Value = Vmultimeter 1 ⎟ 4 * Span + Low Reading EU Troubleshooting Analog Output Modules Troubleshooting Discrete Input ModulesSelect Configuration I/O AO Points Select Scanning Enabled and click Apply Troubleshooting Discrete Output Modules Troubleshooting Discrete Output Relay ModulesSelect Configuration I/O DI Points Troubleshooting Pulse Input Modules Troubleshooting RTD Input ModulesSelect Configuration I/O PI Points Equipment Required Troubleshooting J and K Type Thermocouple Input Modules Select Configuration I/O RTD Point To test the thermocouple module To test the thermocouple Issued Mar-06 Troubleshooting Issued Mar-06 Calibration CalibrationPreparing for Calibration Issued Mar-06 Calibration Analog AreaAttribute Built-in I/O Configuration Comm ModuleTree Crosstalk EIA-232 EIA-422RS-422 EIA-485 Firmware Highway Addressable Remote Transducer InputInput Register Local Port Manual mode MAC AddressModbus Msec Preset PointPoint Type Protocol RX or RXD ScriptSoft Points System Issued Mar-06 Glossary Battery +12 V dc AlarmingDiagnostic Issued Mar-06 Index Dc Power Supply and BAT+ / BAT Wiring Dc Power Supply and CHG+ and CHGFunction Sequence Table FST Issued Mar-06 Index Discrete Output Relay Installing FuseEIA-422/485 RS-422/485 Communications Local Operator Interface Power Input modules Public Switched Telephone NetworksSetup Specifications MVS Signal Routing Comm3, Comm4 Analog Input Module Typical ConfigurationUsing Wiring Emerson Process Management Flow Computer Division