[?]: ET200S 8DI and 8DO card - adress problem

[Nedjeljko]

I faced with problem which I cant realize why its happen.
I have S7414-2DP CPU and connected ET200S with digital output and input cards - each card for input and output are with 8bits.
I have configured everything properly and there is no SF on the CPU or on the ET200S system.
My digital IN and OUT bits are shifted with description below:

Thats mean, when I turn on bit which is placed on 3rd place - it turn on bit nr2 on my digital output card (terminal also signed as nr. 2). Same is also with my digital input card:

Code: Select all

Terminal No.           8       7       6       5       4       3     2     1
LED  No.                 8       7       6       5       4       3     2     1
Input Bit No.           8       6       4       2       7       5     3     1
Output Bit No.         8       6       4       2       7       5     3     1

I really dont understand whats happen?

[sventek]

Hi!

Everything is ok. It is as it is! Look at documentation of the 8DI and 8DO, there you can find the mapping termial <-> in-/output bit.
Bit numbers are from Byte_Nr.0 to Byte_Nr.7.

Greetings
sventek

[Nedjeljko]

I realy dont know why they put so confusing assignment to the Terminals - Must to say that is so stupid. It always will be disasters with this - today on our plant - this almost kill the man, caused with wrong wiring. In all other card Siemens use logical explanation and with the ET200S - they do special mass confusing

here is the description from the user manual:

Code: Select all

Terminal Assignment Terminal Assignment Notes
     1             DI0           5              DI1
     2             DI2           6              DI3
     3             DI4           7              DI5
     4             DI6           8              DI7
     A4          AUX1        A8           AUX1
     A3          AUX1        A7           AUX1

and link to the manual for wiring of teh DI and DO cards:
http://gregbotos.com/publicfiles/siemen ... 200S_e.pdf