Hello Guys,
I am very new to CIP messaging and in our project, we are trying to Controllogix to SCADA server using CIP messaging:
What I understand from the process right now is :
1. SCADA Opens a connection for Large forward Open ( Connection size set at 2500 bytes)
2. PLC responds and establishes a connection
3. SCADA send an MSP request to access tags from PLC
4. PLC responds to this request
The problem we are facing is the PLC doesn't send out a response of more than 240 bytes,
Have any of you guys have faced a similar issue or can help me with troubleshooting?
Thanks in advance
Attached screen captures from wire
