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AT-MGS-408 User Manual
4.3.1 Channel Setup Overview
Prior to setting channel parameters, the installer should verify and record the
instrument type, node address and baud rate for each connected detector. All
detectors must be set for the same baud rate, either 9600
(default)
or 19200, and
must have a unique node address. The MASTER BAUD setting in the MODBUS
CONFIG menu must match the settings of the detectors.
Main Menu
CONTRLR CONFIG
CHANNEL(X)
press
OK,
to access the channel
configuration menu.
or
Press
CH (X)
(twice) to turn monitoring for a channel on or off.
NOTE:
Instructions for this section will use this shortcut.
For each detector channel there are four parameters the user may set; MON, TYP,
ADR, LOC.
Figure 4-19 -
Channel Setup
4.3.2 CH(X) MON (Monitor)
This parameter set to ON or OFF, enables or disables the monitoring of the gas
detector assigned to that channel. When set to ON, the controller will attempt to
collect data, every five seconds, from the gas detector type and at the node address
specified in the corresponding channel parameters. Successful communication
will be indicated with a solid green LED next to the channel number key. Each
time data is collected the LED will flicker to indicate communication access. Failed
communication will be indicated by a blinking green LED and yellow system fault
LED. Failed communication can be caused by a mismatch of either node address,
instrument type or baud rate settings between the controller and the detector, or
