Troubleshooting Support; Serial Port Expansion With Moxa ® Modules - ABB RMC-100 User Manual

debris are not on the cell surface. Dust and debris inhibit the charging ability of the solar panel.
Inspect all other peripheral equipment to ensure that it is properly maintained.
9

Troubleshooting support

For support, call the ABB main office number on the last page of this manual.
Before calling:
–
Take note of the model and serial number. The serial number is on a label affixed to the back of
the base in the DIN rail slot.
–
Prepare a detailed description of the problem for the Technical Support representative.
–
Prepare a written description of the problem.
–
Take note of any alarms or messages as they appear.
–
Know the software version, board number and optional part numbers.
10 Serial port expansion with MOXA
The RMC has two serial ports (serial communication, COMM) to support peripherals with serial
interfaces. If you require more serial ports, external third-party Ethernet-to-serial devices can provide
extra ports for both Ethernet and serial connection.
This section describes how to add serial port capacity to the RMC using the MOXA
Ethernet-serial converter. The module connects to the RMC through Ethernet and to the external
measurement devices on its serial ports. Serial communication traffic is carried over the Ethernet
connection transparently. From the RMC's perspective, communication with the peripherals on MOXA
is as if they were connected directly to its COMM ports.
Use the serial ports on the MOXA
and measurement transmitters. The number of additional serial ports depends on the MOXA
Figure 10-1 shows the connections for a MOXA
ABB multivariable transmitter (XMV) connected to the MOXA
multiple XMVs on the same module port.
IMPORTANT NOTE: The procedures in this chapter show configuration for XMV connections. The
RMC and the MOXA
232 or RS-485 interfaces. For additional configuration options, see PCCU online help or contact
technical support.
Figure 10-1: Ethernet-to-Serial MOXA
2 0 2 | R MC-1 00 | 2 10 5 55 2MN A E
® module to connect with any external serial device, such as radios
® model Nport IA5440AI. This scenario shows a single
® module support other ABB and third-party external devices with standard RS-
® Module Connection MOXA
modules
®
®
® module. Other scenarios might include
Module, an
® module.