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Model GFC7000E Instruction Manual Operating Instructions
04584 Rev A1 82
6.10. SETUP – COMM: Using the Analyser’s
Communication Ports
The MGFC7000E is equipped with two serial communication ports located on the rear panel
(Figure 3-2). Both ports operate similarly and give the user the ability to communicate with, issue
commands to, and receive data from the analyzer through an external computer system or
terminal. By default, both ports operate on the RS-232 protocol. The COM2 port, however, can be
configured for half-duplex RS-485 communication or can be used for the Teledyne Instruments
Ethernet interface card (optional equipment, Section 5.5.3).
Multidrop Communications
There are two options to connect multiple analyzers to a single computer terminal or data logging
device over a single serial communications line. Either port can be equipped with an optional RS-
232 multidrop assembly (Section 5.5.2), or up to eight analyzers can be connected using COM2
configured for RS-485 operation (contact the factory for further information). A third option is to
use a code-activated switch (CAS), which can connect typically between 2 and 16 analyzers to one
communications hub. Contact Teledyne Instruments sales for more information on CAS systems.
Ethernet Communications
When equipped with the optional Ethernet interface, the analyzer can be connected to any
standard 10BaseT Ethernet network via low-cost network hubs, switches or routers. The interface
operates as a standard TCP/IP device on port 3000. This allows a remote computer to connect
through the internet to the analyzer using APIcom, terminal emulators or other programs.
6.10.1. Analyzer ID Code
The first entry in the COMM menu is for configuration of the analyzer ID code, a numerical value
of up to 4 digits. Each type of Teledyne Instruments analyzer is configured with a default ID code.
The MGFC7000E default ID code is 360. When more than one Teledyne Instruments analyzer of
the same model type is connected to the same communications channel , such as two Model
GFC7000E’s operating on the same Hessen Protocol network, each analyzer needs to be
addressed with a unique ID number.
To edit the instrument’s ID code, press: