Ethernet to Serial RS-232 Converters

The RMC150E and RMC200 motion controllers do not natively support serial RS-232 or RS-485 communication but can communicate to serial RS-232 and RS-485 devices by using a third-party serial-to Ethernet converter.
The serial device must support Modbus/RTU or Allen-Bradley DF1.

Here is how to communicate with the RMC75E, RMC150E, or RMC200 via serial communications:

  1. Choose your protocol, either Modbus/RTU or DF1. These are the only ones supported at this time.
  2. Purchase a converter for your protocol:
  • For Modbus/RTU (RS-232 or RS-485)
    Buy the Spectrum Universal Industrial Gateway. This gateway can communicate with the RMC via Modbus TCP and convert to a variety of protocols including Modbus/RTU. See the Using the Spectrum Universal Gateway.pdf for more info.

  • For DF1 (RS-232 Only):
    Buy the RTA 515RTAENI Serial-to-Ethernet converter (https://www.rtautomation.com/product/515rtaeni-n34/). You may need a null-modem cable and gender changers. Read the attached document “Using the 515RTAENI” of info on setup with an RMC75E/RMC150E.

  • For Modbus/RTU (RS-232 or RS-485) (OBSOLETE):
    Buy the Lantronix UDS1100-IAP serial-to-Ethernet converter for roughly $153. You will probably also need a null-modem cable and a couple gender changers. Read the following document for info on how to set it up for use with the RMC150E “Using the Lantronix UDS1100.pdf”

  • For DF1 (RS-232 Only) (OBSOLETE):
    Buy the Allen-Bradley 1761-NET-ENI serial-to-Ethernet converter (http://literature.rockwellautomation.com/idc/groups/literature/documents/pp/1761-pp003_-en-e.pdf) for roughly $550. You will probably also need a null-modem cable and a couple gender changers. Read the attached document "Using the 1761-NET-ENI.pdf"for info on how to set it up for use with the RMC150E.

Delta has tried these converters and found them to work well.
Using the 515RTAENI.pdf (145.9 KB)
Using the Lantronix UDS1100.pdf (277 KB)
Using the 1761-NET-ENI.pdf (256 KB)
Using the Spectrum Universal Gateway.pdf (171.5 KB)