Siemens et 200sp User Manual page 16

Parameters/address space
3.3 Address space
Feedback voltage
A feedback may occur, for example, due to a crossover in a cable of a digital output module
and depends on the target status of the supply voltage L+:
If the supply voltage L+ of the I/O module is greater than 6 V, this is entered in the input data
in the respective bit.
● Byte 2 and 3 (for 12 I/O modules and 4 bytes of input data)
● Byte 4 to 7 (for 32 I/O modules and 8 bytes of input data)
● Byte 8 to 15 (for 64 I/O modules and 16 bytes of input data)
The feedback voltage can be evaluated via the user program in the following cases:
Table 3- 3 Under what circumstances can the feedback voltage be evaluated via the user program?
Supply voltage L+ Status detection of supply
safely disconnected voltage L+ (input data)
1
Yes Not available: Bit = 0
Yes Available: Bit = 1
This does not refer to the supply voltage applied to the BaseUnit, but, for example, to the status information of a safety
1
relay.
16
Status detection of feed-
back voltage (input data)
Available: Bit = 1
Available: Bit = 1
Explanation
The feedback voltage detected is in the
range 6 to 12 V (e.g. in the event of a
fault in the system)
The feedback voltage detected is > 12 V
(e.g. in the event of a fault in the system)
Server module (6ES7193-6PA00-0AA0)
Manual, 03/2015, A5E03575337-AB