TQ TQ4000 User Manual

TQ Environmental LTD
Product Manual TQ 4000
Filename: 7970H8 Page 25 of 27
9. Modbus Communications
The TQ4000 unit features dual channel Modbus communications over 2 serial
RS485 lines. This communication allows remote interrogation of the channel
concentrations and the status of the channel alarms and fault conditions. It is also
possible for remote alarm mute and alarm reset functions to be performed. The
Modbus register addresses are detailed in the following table:

TQ TQ4000 Specifications

General

Brand	TQ
Model	TQ4000
Category	Control Unit
Language	English