Hello,
I am very beginner in PLC world when it comes to networking. For student exercise I need to investigate how to set up communication between two S7 PLCs.
I have two PLC configurations, both have S7 315-2DP CPUS and few DI/Do cards.
So, both CPUS have profibus port. I have profibus cable and would like to read adresses from I0.0 to I1.7 from PLC2 and use data in PLC1.
I need some useful info about how to start here. I have searched the forum and found some interesting stuff.
I will use AG_SEND and AG_RECEIVE functions, since they are used mostly for PB communication.
My first question is how to position that termination switches on PB cable?
I will also have to set up network in HWConfig of both PLCs and to downloaded it into CPUs.
What else I need to do befor actually trying to write the program?
Thanks for your help
I am very beginner in PLC world when it comes to networking. For student exercise I need to investigate how to set up communication between two S7 PLCs.
I have two PLC configurations, both have S7 315-2DP CPUS and few DI/Do cards.
So, both CPUS have profibus port. I have profibus cable and would like to read adresses from I0.0 to I1.7 from PLC2 and use data in PLC1.
I need some useful info about how to start here. I have searched the forum and found some interesting stuff.
I will use AG_SEND and AG_RECEIVE functions, since they are used mostly for PB communication.
My first question is how to position that termination switches on PB cable?
I will also have to set up network in HWConfig of both PLCs and to downloaded it into CPUs.
What else I need to do befor actually trying to write the program?
Thanks for your help