Interfacing with EMS RFID Gateway with cRIO 9074

[Philip111]

Hi, I was wondering if it is possible to use the cRIO to interface with an EMS RFID Gateway (GWY-01-IND-01), and how I would go about doing it? I have a cRIO 9074 with several EMS HF-0405-485 RFID readers that I would ideally like to communicate with without using a PC. According to the manual, the Gateway supports TCP/IP, Modbus, and Ethernet/IP protocols, but I don't really know where to begin. Thanks.

[Verne_D]

Hi Phillip,

You've got a couple options. First, you can communicate to other networked devices using the secondary ethernet port on your RIO. Make sure the port is on and configured to an IP address, then using the TCP VIs to communicate with other network objects. Alternatively you could try implementing modbus using the modbus library deployed on the RIO (not a supported technique, but might work). These ideas are expandable to the desktop, and would essential follow the same steps. 

Some examples that might help guide you getting started would be "TCP Communicator - Active" and "TCP Communicator - Passive" which will demonstrate some of the TCP vis in action (Found in Communicating with External Applications > General folder in example finder). Modbus library has a guide in an attachment to the download page. I hope this helps get you moving in the right direction. Be sure to thoroughly go through the detailed help for each of the functions you're using, to make sure you understand the theory of operation.