Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 12 Function block meter 2017-09-29
12.9 Fault handling
Battery-powered or mechanical meters also continue metering in the event of a power
failure. In the event power supply to the RMH760B fails, the pulses will not be counted
during that period of time.
When leaving the "Extra configuration" menu, a restart will be made. Pulses received
between the last storage operation and the restart (maximum 5 minutes) are counted.
If, in connection with pulse limitation, "Scaled" is selected as the type of limitation, a
fault status message is delivered to the meter’s input if the minimum number of pulses
(5 pulses/min) is not reached for more than 20 seconds.
Scaled pulse sources never deliver less than 7.5 pulses/min.
Number
Text
Effect
9401
No pulse signal
meter 1
Meter input 1 receives no pulses from the heat
meter.
Nonurgent message; must be acknowledged
9402
No pulse signal
meter 2
Meter input 2 receives no pulses from the heat
meter.
Nonurgent message; must be acknowledged
9403
No pulse signal
meter 3
Meter input 3 receives no pulses from the heat
meter.
Nonurgent message; must be acknowledged
9404
No pulse signal
meter 4
Meter input 4 receives no pulses from the heat
meter.
Nonurgent message; must be acknowledged
Note
Fault status messages