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Modbus register assignment of the ISOMETER®
53
isoEV425_D00126_09_M_XXEN/03.2019
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
Description
0
Reserved
When reading, always 0
When writing, any value
1
x Err
Device error E.xx
2
rx
+R1 < Ω
Pre-alarm R1
Fault
R
F
at L1/+
3
rx
-R1 < Ω
Pre-alarm R1
Fault
R
F
at L2/-
4
rx
+R2 < Ω
Alarm R2
Fault
R
F
at L1/+
5
rx
-R2 < Ω
Alarm R2
Fault
R
F
at L2/-
6
rx
U < V
Alarm message
U
n
Undervoltage
7
rx
U > V
Alarm message
U
n
Overvoltage
8
rx
test
Manually started self test
9
S.AL
Device start with alarm
10
Reserved
When reading, always 0
When writing, any value
11
Reserved
When reading, always 0
When writing, any value
12
Reserved
When reading, always 0
When writing, any value
Содержание AGH420
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