Siemens SENTRON ATC6500 Manual page 198

Transfer switching equipment and load transfer switches 3kc transfer control device
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MODBUS communication
10.4 Data library
The 32 bits of the status Digital outputs for the address 2140h have the following
meaning:
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
The 16 bits of the status Voltage for Source 1 and Source 2 for the address 2074h or
2176h have the following meaning:
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14-15
196
Digital output
Digital output 1
Digital output 2
Digital output 3
Digital output 4
Not used
Not used
Digital output 7
Not used
Digital output 9
Digital output 10
Digital output 11
Digital output 12
Digital output 13
Digital output 14
Digital output 15
Digital output 16
Digital output 17
Digital output 18
Digital output 19
Digital output 20
Meaning
Source within the limit thresholds
Source within the limit thresholds + delay
Voltage within the limit thresholds
Voltage OK
Frequency within the limit thresholds
Frequency OK
Voltage below the lower threshold
Voltage above the upper threshold
Voltage unbalance
Phase failure
Frequency below the lower threshold
Frequency above the upper threshold
Incorrect phase sequence
All parameters of the source OK
Not used
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01

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