To Connect EZ Marquee to a Siemens S7 PLC, perform the following steps in relevant Siemens Programming Software:

1. Setup the PLC properties for serial communication as shown below


2. Create a string type file to insert ASCII commands. Write out the message using the EZ String Generator software, copy the ASCII string created and paste it into the string file.

3. Setup Ladder Logic and controller tags. Use the XMT instruction to initiate the ASCII command to trigger relevant messages. The example below illustrates this.