Industrial Communications
ProfiNet communication between S7-300 and cRIO PN
Hello, first of all i'm sorry i have not been good at English.
I’m trying to communicate with Siemens S7-300 PLC on these days.
I’m using Labview 2012 SP1 on windows 7.
First step, I installed NI-PROFINET for cRIO 2.0.2 driver in my Labtop.
Second step, I gave GSDML file to my co-worker(PLC programmer) and he configured cRIO PN module with TiaPortal V13 SP1 update 5
He set the I address to 0…127, and the Q address to 0…127.
Third step, I modified your example source code and we communicated sucessfully with below configuration!
And then, we wanna try to communicate more bigger memory size.
So my co-worker(PLC programmer) set the I address to 128…381, and the Q address to 128…381.
And I changed configuration like below but we fail to communicate.
We try again 128…255(I address) and 128…255(Q address) and below configuration but we faild, neither.
So we need your help for communicating 254 size memory with any start address.
(for example, 2…256 or 10…264, etc….)
- Please check my configuration.
- I wanna to know about exact meaning of each parameters. I thought like below but maybe I’m wrong.
Input data offset : start address of PLC I address.
Input data length : write memory size
Write I/O memory offset : memory offset of request buffer in CS_PN-Memory(don’t care about PLC I address)
Output data offset : start address of PLC Q address.
Output data length : read memory size
Read I/O memory offset : memory offset of response buffer in CS_PN-Memory(don’t care about PLC Q address)
If you need more information for solving my problem, please reply.
Best Regards.
