FM450-1 counter module

[a7med918]

Hi all,
i have FM module starting with 1512....1575 i/p address in hardware but i cant get this adress in PLC s7 program
how can i find this address to follow up it?

thnx . best regards

 

[L D[AR2P#0.0]]

Generate source code for all of your blocks and then search the resultant text for "1512" and/or the hex equivilant.

 

[a7med918]

i didnt find any result for helping if i want to upload my program what is the sutable site for uploading for all members?

 

[L D[AR2P#0.0]]

Create a new library in simatic manager. Copy your project blocks to the library. Archive the library then post the resultant zip on here.

 

[a7med918]

ok sir - file uploaded.
and sorry for take all of yr time

THNX

 

[L D[AR2P#0.0]]

1512(decimal) = 5E8(Hex)

Convert 5E8(hex) to pointer format (SLD3) gives 2F40(hex) which is located in DB310.DBW10 (or DB310.DBD8)

FC200 reads the value from DB310 to indirectly address the counter.

 

[Ken M]

My God ... and people wonder why Siemens gets criticised for unneccessary complexity. What would we do without people like L D[AR2,P#0.0] ? Brilliant work, Holmes.

 

[a7med918]

1512(decimal) = 5E8(Hex)

Convert 5E8(hex) to pointer format (SLD3) gives 2F40(hex) which is located in DB310.DBW10 (or DB310.DBD8)

FC200 reads the value from DB310 to indirectly address the counter.

DEAR Mr. L D[AR2,P#0.0]
Thnx for yr information I go to FC310 and found some STL condition included DB310 but i cant understand how you know that specially DB310 is used in encoder i find also FC200 but also i cant understand the i/ps meaning i try to use siemens help to determine the main function of these 10 i/p but i cant find any help refer to that i go then to OB101 find 1512 is pointed and transfer to DB310.DBD8 but i cant collect all this data with other plz help me - sorry i know that i am asking more question but still need yr help

 

[L D[AR2P#0.0]]

I ran your code in the simulator with no h/w config and checked the diagnostic buffer for accesses to PIW/PQW1512, this led me to FC200. Each call to FC200 is passed a DB so I removed the calls until the PIW/PQW1512 accesses were no longer reported in the diagnostic buffer, this led me to DB310. I monitored DB310 online and there were only a couple of non-zero entries, this led me to DBD8 which I changed and the diagnostic buffer entry changed as well. QED.