Configure The Alarm Output For The Modbus ® Transmitter - Emerson 5301HxxxxxxxxxxxxxxZZ Series Reference Manual

Reference Manual
00809-0100-4530
5.10 Configure the alarm output for the Modbus
transmitter
The output from the Modbus transmitter in case of an error (such as a field device
malfunction) can be configured.
Prerequisites
If the Modbus communication setup has been changed, but the transmitter has not yet
started to use the new configuration, then you need to disconnect the HART modem and
wait up to 60 seconds for the change to take effect.
In case the MA/MB terminals are used for connection to the HART to Modbus Converter
(HMC), disconnect the RS-485 Converter, cycle power to the transmitter and wait up to 60
seconds for the change to take effect.
The Modbus communication settings will otherwise be lost if you write a new message to
the transmitter.
Use the Modbus string to configure the alarm output. The values for Modbus registers
corresponding to PV, SV, TV, and QV will be changed accordingly (applicable registers in
area 1300, 2000, 2100, and 2200). The default alarm output value for each protocol is
defined in
Procedure
1. Start Rosemount Radar Master and connect to the transmitter.
2. Select Setup → General.
3. Select the Communication tab.
4. Select Modbus Setup.
5. Select Enter user defined communication settings string (advanced).
6. Enter the Modbus string, and select OK.
Reference Manual
Table 5-12. Configuring alarm output value is optional.
See Table 5-12 for available Alarm Output Modbus strings.
Configuration
April 2019
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