Siemens S7-313 & CP-343-2 (AS-i)

Hi guys

I've set up a little training rack comprising of:
CPU 313 (1AD03-OABO)
SM321 DI32
CP343-2 (2AH00-OXAO)
SM322 DO16
SM332 AO 4x12bit
SM331 AI 8x12bit

Set up with IFM AC1208 AS-i PSU and two slaves numbered 1 and 16.

Input address allocated to AS-i module is 272-287.

I have an input to the first bit of slave 1.
I can see them in a VAT.
How do I read these from the PII and get to use them as bits, please?

Thanks in advance

Read and transfer them to:

A) a DB and refer to the bits in the db
B) a MB and refer to the marker bits
or
C) allocate the AS-i to a base address such as 100 when the inputs will then appear in the PII
D) copy the

What is done on some of our machines:

L PID 256
T ID 100 // or any other free Input range
and so on
This way it still stays very clae that you're wokring with I/O's.

I was going to suggest this but decided against it - hence the half finished sentence in my previous post

I can't seem to transfer them anywhere.
When I transfer them to the plc the cpu lights SF and the software says Unable to write to block (in STOP and in RUN-P) as invalid code in program.
Can't I just use say, I272.0?

Has anyone got a basic block to share, please?

Kindest regards and thanks in advance.
silva.foxx

Can you post the code you are using to perform the transfer that fails please.

Hi there,

I am using an As-i card and read the input in this way:

OPN DB 1
L PID 256
T DB1.DBD 0
L PID 260
T DB1.DBD 4
L PID 264
T DB1.DBD 8
L PID 268
T DB1.DBD 12
It is working and simple to use.

By the way what does your PLC says about the SF fault in the diagnostic?

Regards,