ABB XIO-00 - Configure Ethernet-Serial Passthrough

76 | XIO USER MANUAL | 2106424MNAB
Figure 4-56: Configure registers storing remote peripheral measurement values
4.8 Configure Ethernet-Serial Passthrough
This section describes how to configure the XIO-04 or XIO-08 and the Ethernet-serial passthrough
function in order to extend serial port capacity to an RMC.
Both the RMC and the XIO must connect either directly using Ethernet ports or to the field area network
switch. In this scenario, the XIO performs the role of an Ethernet-serial converter and makes COM ports
available to applications on the RMC. The XIO relays all communications from the attached serial devices
to the controller on the Ethernet port (network connection). Both must have valid IP addresses. Serial
communication protocols are used transparently (encapsulated) over the Ethernet interface.
The RMC manages communication with the peripherals on the XIO with communication applications
instantiated and configured locally. The RMC manages and monitors the XIO COM ports as if they were its
own onboard ports.
IMPORTANT NOTE:
As an example, the scenario described in this section describes the
configuration of an XIO COM port connecting to an ABB multivariabl
e (XMV). An XMV Interface
application instance is added on the RMC for communication with that device. Other scenarios might
include multiple XMVs on the same COM port or additional XMVs connected to other ports. The RMC
uses an XMV Interface instance for
every COM port configured in passthrough mode. Adapt the
following steps for the type of peripheral and associated communication application:
– To communicate with other types of ABB devices, use their specific communication application.
– To communicate with third-party peripherals, use the Generic Com App.
IMPORTANT NOTE:
The Ethernet-Serial Passthrough function activates on a per-port basis. If all
XIO COM ports require passthrough, each port requires its own Ethernet
-Serial Passthrough
instance. Use a
naming convention for the instances that makes XIO COM port identification easy.
Both the Ethernet
-Serial Passthrough and the XIO server can be active on the XIO, but each owns
the ports
assigned to it.