fritz

Hello kattus

a physical S7-300 requires usage of FB14/15 GET/PUT blocks which are though NOT supported by PLCSIM.

The trick is program your S7-300 as if it is an S7-400 and directly use SFB14/15 GET/PUT blocks and it will work (just make sure to change the program back to use of FB14/15 when you want to use it in a physical S7-300). 

 Dear Fritz,

I really didn't understand: "program your S7-300 as if it is an S7-400 and directly use SFB14/15 GET/PUT blocks and it will work" . What should i configure in program when i call FB14/FB15 and to use as SFB14/15

Thanks so much.

Vũ Vinh

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Split from Can I simulate conection between two S7-300 PLC.

vuvinh11

 

fritz

Hello kattus

a physical S7-300 requires usage of FB14/15 GET/PUT blocks which are though NOT supported by PLCSIM.

The trick is program your S7-300 as if it is an S7-400 and directly use SFB14/15 GET/PUT blocks and it will work (just make sure to change the program back to use of FB14/15 when you want to use it in a physical S7-300). 

 Dear Fritz,

I really didn't understand: "program your S7-300 as if it is an S7-400 and directly use SFB14/15 GET/PUT blocks and it will work" . What should i configure in program when i call FB14/FB15 and to use as SFB14/15

Thanks so much.

Vũ Vinh

 hi,

he means, there are 2 kind of blocks.

in a S7-300 you need to use the FB14/15 and in S7-400 you need to use the SFC14/15.

But in S7-300 there are also 2 variants of PUT/GET. One for the communication over the internal interface and one for communication over CP.

How do you program communication blocks FB14 "GET" and FB15 "PUT" for data exchange in the S7 program of an S7-300 CPU?

FAQ

The latest version of the FB14 "GET" and FB15 "PUT" communication blocks for data exchange by way of a CP343-1 or CP342-5 is available in the SIMATIC_NET_CP library under "CP 300 > Blocks".The latest version of the FB14 "GET" and FB15 "PUT" communication blocks with the "CPU_300" family for data exchange by way of the integrated PROFINET interface of a S7-300 CPU, IM151-8 PN/DP CPU or IM154-8 CPU is available in the Standard Library under "Communication Blocks > Blocks".

  Sample Program: S7 Communication with blocks FB14 ("GET") und FB15 ("PUT") of the CPU 317-2PN/DP

Sample program: S7 communication with the blocks SFB14 ("GET") and SFB15 ("PUT") with S7-400

hope this helps,

regards,

Hi MopS04,

Thanks for your advice, but i still have a little bit confuse.

I use TIA Portal V13,CPU s7-315 PN/DP.

It's just only have( FB14/15) in "Communication blocks" link. FB14/15 in "communication blocks" can't simulate.

In "SIMATIC_NET_CP" link, i can't see FB14/15.

Please advise where i can find this kind of FB14/15 which enable simulation. ^^

Regards

Vu Vinh.

Hi vuvihn11,

You could use empty box block and write "in it" SFB14 or SBF15. It work for me. I hope it will help you. ;)

Regards

vuvinh11

Hi MopS04,

Thanks for your advice, but i still have a little bit confuse.

I use TIA Portal V13,CPU s7-315 PN/DP.

It's just only have( FB14/15) in "Communication blocks" link. FB14/15 in "communication blocks" can't simulate.

In "SIMATIC_NET_CP" link, i can't see FB14/15.

Please advise where i can find this kind of FB14/15 which enable simulation. ^^

 hi,

do you have a CP in your installation, which you want to use for this communication?

regards,