Remote IO - How to Connect Siemens S7-1200/1500 ?

There are 2 settings on the PLC that need to be changed in order to connect to your Siemens S7-1200 / 1500 PLCs and read data. These are;

* As you can see in the photo below, you need to remove the “Optimized block access” option in all data blocks where you want to read data.

* As you can see in the photo below, the option “Permit access with PUT / GET communication from remote partner” must be enabled for each CPU.