Rosemount 5300 Series with HART® to Modbus® Converter
May 2016
Reference Manual
00809-0100-4530, Rev DD
394
Rosemount 5300 Series with HART® to Modbus® Converter
J.9
Alarm handling
Note
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 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.
The output from the Modbus transmitter in case of an error (such as a field device
malfunction) can be configured. 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 on the next page. Configuring
alarm output value is optional.
Use the Modbus string to configure the alarm output. To enter a Modbus string in RRM, do
the following (Modbus RTU shown):
1.
Start RRM and connect to the transmitter.
2.
In RRM, select
Setup
>
General
.
3.
Select the
Communication
tab.
Modbus Setup
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