Hi everyone,
I'm an engineering fourth grade student and I am to new these topics.
I need to communicate between Citect SCADA 2016 and M241 plc with modbus tcp protocol. I configured the citect side by following the related documents. On the PLC side, I use the Somachine software and I configured the PLC for modbus tcp slave using explanatory documents.
I know that communication is provided by holding and input registers. However, I could not find any documents about how the steps of reading and responding to a request by the Citect should be performed by the PLC. All the documents I have found from the internet and sample projects in somachine show examples for PLCs working in master mode all the time.
Please help me to get this communication.
Thank you in advance for your help.
I'm an engineering fourth grade student and I am to new these topics.
I need to communicate between Citect SCADA 2016 and M241 plc with modbus tcp protocol. I configured the citect side by following the related documents. On the PLC side, I use the Somachine software and I configured the PLC for modbus tcp slave using explanatory documents.
I know that communication is provided by holding and input registers. However, I could not find any documents about how the steps of reading and responding to a request by the Citect should be performed by the PLC. All the documents I have found from the internet and sample projects in somachine show examples for PLCs working in master mode all the time.
Please help me to get this communication.
Thank you in advance for your help.