Alarm Assignment Of The Relays - Bender ISOMETER isoEV425 Manual

Modbus register assignment of the ISOMETER®
8.1.3

Alarm assignment of the relays

Several alarms can be assigned to each relay. For the assignment of each relay,
a 16-bit register is used with the bits described below. The following table ap-
plies to relay 1 and relay 2, in which "x" stands for the relay number. A set bit
activates the specified function.
Bit Display indication
0 Reserved
1
rx
2
+R1 < Ω
rx
3
-R1 < Ω
rx
4
+R2 < Ω
rx
5
-R2 < Ω
rx
6
U < V
rx
7
U > V
rx
8
test
9 S.AL
10 Reserved
11 Reserved
12 Reserved
isoEV425_D00126_09_M_XXEN/03.2019
When reading, always 0
When writing, any value
x Err Device error E.xx
Pre-alarm R1
Fault R
Pre-alarm R1
Fault R
Alarm R2
Fault R
Alarm R2
Fault R
Alarm message U
Undervoltage
Alarm message U
Overvoltage
Manually started self test
Device start with alarm
When reading, always 0
When writing, any value
When reading, always 0
When writing, any value
When reading, always 0
When writing, any value
Description
at L1/+
F
at L2/-
F
at L1/+
F
at L2/-
F
n
n
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