Hello everyone. Thanks for taking the time to read my question.
I would consider myself a advanced-beginner PLC programmer. I've used the Siemens 1200s fairly regularly.
Here' is my dilemma. I've created a program that uses a 1200 and a touchscreen. My client now wants to be able to access as many functions from the touch screen as possible using Modbus. I've never used Modbus, but I've researched quite a bit and have actually set up 2 1200s passing DBs to one another using the Modbus Master/Slave blocks in order to get some understanding on how it works. The main problem is that my client will not be using another PLC, but a 3rd party HMI software to monitor and set values. I've set up my PLC to act as a slave, but how do I address everything so that he may write/read values in my PLC?
Does this make sense?
Thanks again for your time and help.
-=coasterbp
I would consider myself a advanced-beginner PLC programmer. I've used the Siemens 1200s fairly regularly.
Here' is my dilemma. I've created a program that uses a 1200 and a touchscreen. My client now wants to be able to access as many functions from the touch screen as possible using Modbus. I've never used Modbus, but I've researched quite a bit and have actually set up 2 1200s passing DBs to one another using the Modbus Master/Slave blocks in order to get some understanding on how it works. The main problem is that my client will not be using another PLC, but a 3rd party HMI software to monitor and set values. I've set up my PLC to act as a slave, but how do I address everything so that he may write/read values in my PLC?
Does this make sense?
Thanks again for your time and help.
-=coasterbp