30 | RMC-100 | 2105551MNAD
Figure 7-7: Network communication for 2 Network mode
7.3 Expand serial communications
The RMC supports serial communication expansion through ABB XIOs or third-party Ethernet-to-Serial
devices. Connection with this type of equipment requires networking communication over Ethernet.
Ensure all devices have valid and unique IP addresses. Static IP addressing for devices is recommended.
See section 7.2 Configure Ethernet (network) communication
.
7.3.1 Expand with ABB’s XIO
The RMC supports serial port expansion through ABB’s Extendible IO devices (XIOs). The RMC can obtain
measurement data from peripherals such as measurement transmitters connected to XIO COM ports. The
RMC-XIO combination provides an integrated solution designed to transparently handle devices on XIO
remote ports as if they were local ports on the RMC. The two options to implement RMC-remote device
communication are:
Use the RMC’s XIO Interface application for RMC-XIO communication.
Use the XIO’s Ethernet-to-Serial Passthrough application for RMC-XIO communication.
XIOs can be co-located with an RMC on the same cabinet or be in their own enclosure at a distance from
the RMC in the same field. RMC-XIO communication is over Ethernet. For additional details, refer to the
XIO user manual. See Additional information
for a link to the document.
The two configuration options for connection with the XIO (XIO
-to-serial passthrough) provide complete and integrated statistics for
and troubleshooting. The XIO supports PCCU as the configuration interface for a
fully integrated and seamless solution.
7.3.2 Expand with third-party serial-to-Ethernet module
The RMC also supports serial port expansion through third party Serial-to-Ethernet modules. The RMC
can obtain measurement data from peripheral devices such as measurement transmitters connected to
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