Greetings to all!
I am newbie in profibus but i want to learn and i am free to ask on this forum for several things.
I have two Siemens PLCs. One with 312 cpu and other with 314 cpu. On both plcs there is CP 342-5 phisically connected. Between locations of plc's there is optical fibers.
In "hardware" (station configuration) in both programs i have inserted cp-s with their I and Q adress ranges (265...271).
Now, i am interested, how to establish communication betwen that two plc-s. It must work on principles that specified data from one data block (at first plc) is copyed? (syncronised?) to specified data block, at specified adress, on second plc. (then second plc works with that data)....
- Do I nead to insert FB2,3,4,... in OB1 of cpu-s ?
- From where (libraries - "simatic_net_cp" or ?) can i take FB-s?
- Can I use FB-s from "CP 300" section for CP 342-5?
- What parameters to assign at inserted FB-s? Please can you explain that to me?
- Where can i found or can someone send to me some examples of that?...
Maybe this questions sound stupid but i am really newbie an i will be very happy when you help me.
Many thanxes!
btw. I am sorry because of my bad English
Greetings, Ante!
I am newbie in profibus but i want to learn and i am free to ask on this forum for several things.
I have two Siemens PLCs. One with 312 cpu and other with 314 cpu. On both plcs there is CP 342-5 phisically connected. Between locations of plc's there is optical fibers.
In "hardware" (station configuration) in both programs i have inserted cp-s with their I and Q adress ranges (265...271).
Now, i am interested, how to establish communication betwen that two plc-s. It must work on principles that specified data from one data block (at first plc) is copyed? (syncronised?) to specified data block, at specified adress, on second plc. (then second plc works with that data)....
- Do I nead to insert FB2,3,4,... in OB1 of cpu-s ?
- From where (libraries - "simatic_net_cp" or ?) can i take FB-s?
- Can I use FB-s from "CP 300" section for CP 342-5?
- What parameters to assign at inserted FB-s? Please can you explain that to me?
- Where can i found or can someone send to me some examples of that?...
Maybe this questions sound stupid but i am really newbie an i will be very happy when you help me.
Many thanxes!
btw. I am sorry because of my bad English
Greetings, Ante!
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