5-72 APPLICATION FUNCTIONS
MON2000
Serial Ports Configuration JULY 2010
These ports can be configured with the Usage
settings to accommodate any one of the
following end-connection devices:
PC – direct serial line connection to the PC,
a serial line connection to an external or
internal modem or an ethernet connection
Report – direct serial line connection to a
printer
User_Modbus or SIM_2251 – connection to
a Data Collection System (DCS) or a multi-
drop serial data highway network
Specific configurations of these ports may also
include settings for serial interface protocols
(i.e., RS-232, RS-485, or RS-422).
These protocols can either be set from the
Serial Ports window, or they can be configured
through jumper settings that are located on the
The optional internal modem installed on a Model 700
or Model 500 uses COM9 only, except when a
keyboard and display are installed. The optional internal
modem would then use COM8 onl
y
.
For proper communications, these parameters, which
are continuously downloaded to the GC, must be
identical to the parameters set in the MON2000 GC
Directory.