Hi, I made a post earlier about trying to go from STEP 5 statement list code written on a Beckhoff PLC to S7. While no proper conversions exist, I'd like to instead narrow my focus from getting my code to be S7 compliant as to run in some sort of Siemens environment. The hope is that that code could be converted to S7, and things would go forth from there. Code was written on a Beckhoff S2100. Does anyone have any idea how different this S5 code would look compared to a Siemens device written at about the same time?

I have posted the pdf of the instruction manual which contains operands/instructions for programming in STEP5 on a Beckhoff interface. How different is this from a Siemens interface? Are there any hurdles that would be insurmountable?

Can you share your application, that will be more feasible and easy to answer.

In my case usually i try to avoid the conversion just because sometimes conversion miss some key points which isn't easy to trace. Instead of conversion from old system, i always understand the complete concept of the system and then write complete program according to my ease.

Hi t_wend

your Beckhoff S2100 manual reads very much like an S5 S135/155 list of operations and - like its S5 cousin - is based on using the same type of Blocks (e.g. OB,s PB,s FB,s, DB's etc.).

It even highlights were it differs from an S5 and what additional instructions it has that an S5 does not have. 

While some S2100 program evaluation will nee to be done and non-supported features be implemented in other ways in an S7, the same applies for any S5 to S7 program conversion so I certainly can't see any insurmountable hurdles. 

Should the S2100 program be available in S5 compatible *ST.S5D format, you could even run it through the S5 to S7 converter to bring the bulk of the logic across.