Siemens SIMATIC EMS400S PSB-S Operating Instructions Manual page 38

Displays and address ranges
5.3 Carrier control
Word
6
1
38
Byte Bit Name
5 0
1
2
3
4
5
6
7
6 0 Validation bit
– Toggle between "data to acknowledge" and "data not to acknowledge"
1 ACK bit
2 Standby bit
3 ... 7 Reserved
7 0 ... 1 Reserved
2 Temperature ranges of
the module
3 Reserved
4 Bridge bit
5 ... 7 Reserved
The data word contains user data. This data serves for communication of the plant segment
controller with the carrier controller.
Description
0 = invalid or superimposed
data, or error
1 = valid, current data
0 = data not to acknowledge
1 = data to acknowledge
0 = the enable bit of the plant
segment controller for EMS
carrier is set to logical 1 in this
plant segment.
1 = the enable bit of the plant
segment controller for EMS
carrier is set to logical 0 in this
plant segment.
0 = Normal operation
1 = Overtemperature (the "Overtemperature"
diagnostic is also output here.)
–
0 = No bridging
1 = Bridging (segment transition)
–
Operating Instructions, 03/2014, A5E03474166-03
Terminals
RAIL
RAIL
–
–
–
PSB modules