Emerson specifications Rosemount 5300/5400 Series

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Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA October 2010

Verify Alarm Output

Use status information to evaluate measurement validity

Use Heartbeat to detect errors

To verify the Alarm Output, use RRM to simulate a device failure:

1.Establish HART communication with the transmitter through RRM.

2.Select Simulation Mode in the Tools menu.

3.Click Enable Device Failure Alarm (simulated).

4.Click the Start button.

5.Disconnect HART modem.

6.Verify that the configured alarm output is available in the Modbus host.

7.Use RRM to turn off simulation mode.

The transmitter updates status information about the current measurement, and this status information is available as a bitfield register through Modbus communication.

By monitoring the status information it is possible to determine if the current measurement output value is valid. See “Common Modbus Host Configuration” on page 1-25for details about the individual status bits.

By reading and evaluating the Heartbeat value from the device, it is possible to verify that the communication link between the transmitter, HMC, RTU and even the control system communicating with the RTU is working.

Assign Heartbeat to one of the transmitter variables (SV, TV, or QV). Heartbeat is increased by one for each measurement cycle in the device (until it eventually starts over at zero again).

In case this value is not updated, it means that the communication link is broken.

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Contents Rosemount 5300/5400 Series with Hart to Modbus Converter Manual SupplementSafety Messages Explosions could result in death or serious injuryIntroduction WorkflowMechanical Installation Electrical Installation Field Wiring Connections Hart + Installation cases RS-485 BusStar Topology Alternative Multidrop Connection of 5300/5400 TransmittersNo. of devices Approx. update rate Slaves External Hart Devices SlavesEstablish Hart Communication Connect to the MA/MB terminalsRosemount 5300/5400 Series Connect to the Hart terminals Transmitter Configuration Modbus Communication Protocol Configuration Using RRM to change communication parametersModbus Setup Modbus RTU Parameter Configuration Example Levelmaster Communication Setup HMC A44 B4800 PO S2HMC A127 Levelmaster Parameter Configuration Example HMC M2 A2 B9600 D7 PN S1Implemented Functions of Levelmaster Protocol Modbus Ascii Communication Setup HMC M1 A246 B9600 D7 PN S1Rosemount 5300/5400 Series Alarm Handling Modbus RTU LevelmasterModbus Ascii Rosemount 5300/5400 Series Common Modbus Host Configuration Input RegistersBit information in bitfield 14. Output Variables for Floating Point Format Code Rosemount 5300/5400 Series Volume Length Measurement UnitsSpecific Modbus Host Configuration Emerson Process Management ROC800 SeriesEmerson Process Management FloBoss ABB TotalFlowThermo Electron Autopilot Bristol ControlWave MicroScadaPack Kimray Dacc 2000/3000Troubleshooting No communication on RS-485 bus MA, MB No 5300/5400 communication in RRMNo communication with Modbus RTU protocol No communication with Modbus Ascii protocolHMC Firmware Upgrade in Rosemount Radar Master Select Enable Modbus Communication and click OKRosemount 5300/5400 Series Click Browse Checksum Rosemount 5300/5400 Series Specifications Rosemount 5300/5400 Series Emerson Process Management Rosemount Measurement