Troubleshooting Proline Promag 53 MODBUS RS485
106 Endress+Hauser
Totalizer STOP
The totalizers are paused until the error is rectified.
ACTUAL VALUE
Fault is ignored, i.e. the totalizer continues to count according to the current flow value.
HOLD VALUE
The totalizers continue to count the flow in accordance with the last valid flow value
(before the error occurred).
Totalizer stops
Relay output In the event of a fault or power supply failure: Relay → deenergized
The "Description of Device Functions" manual contains detailed information on relay
switching response for various configurations such as error message, flow direction, EPD,
limits, etc.
No effect on relay output
MODBUS RS485 In the event of faults, the value "NaN" (not a number) is transmitted instead of the current
measured value.
-
Failsafe mode of outputs and totalizers
System/process error is present Positive zero return is activated
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