Teledyne GFC 7001EM operation manual Remote Access by Modem

Remote Operation Model GFC7001E Carbon Dioxide Analyzer

Example Read/Write Definition window:

Example Connection Setup window:

Example MODBUS Poll window:

8.5.1.REMOTE ACCESS BY MODEM

The GFC 7001E/EM can be connected to a modem for remote access. This requires a cable between the analyzer’s COMM port and the modem, typically a DB-9F to DB-25M cable (available from Teledyne with P/N WR0000024).

Once the cable has been connected, check to make sure:

The DTE-DCE is in the DCE position.

The GFC 7001E/EM COMM port is set for a baud rate that is compatible with the modem,

The modem is designed to operate with an 8-bit word length with one stop bit.

The MODEM ENABLE communication mode is turned on (Mode 64, see Table 8-1).

Teledyne Analytical Instruments 172