Communications Troubleshooting; Overview - ABB XSeries G4 6200 User Manual

Refer to Chapter 4 for steps on performing both a hardware and software cold
start.
5.3.8.2
A warm start does not clear the data stored in RAM. The warm start will only reset
the G4 EX microprocessor and not disturb any data that has been stored in RAM.
A warm start should be used when taking a unit out of service to perform
maintenance or troubleshooting. A warm start can be used when a power or
communication interruption caused the G4 EX microprocessor to lock up.
Refer to Chapter 4 for steps on performing both a hardware and software warm
start.
5.4

Communications troubleshooting

5.4.1 Overview

These troubleshooting procedures are applicable to the G4 EX with an installed
radio in the optional 6270 OEU Enclosure unit. Use Figure 5–7 as an aid in
troubleshooting communication problems. The three basic types of radio
communication that can be used between the G4 EX and a radio receiver are:
-
-
-
The radio/modem may be powered one of two ways: always on or switched. The
user's specific system set up will determine what steps are needed to power the
radio/modem.
When switching power to a radio with Inhibit (Sleep) mode, the communication 1
port or switched power line will move to the radio's Inhibit(Sleep) mode input.
Power out will move to the radios.
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Warm start
RS-232 Communications port programmable
RS-485 Communications port programmable
RS-422 Communications port programmable
It is important that the user disconnect the G4 EX battery
cable from the G4 EX board.
2104349 rev. AD