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AT-MGS-402 User Manual
Operation ........................................................ 14
4.1 Overview ......................................................................................................................... 14
4.1.1
Main Function .............................................................................................................................................14
4.1.2
Power Up .....................................................................................................................................................14
4.1.3
Channel number keys ................................................................................................................................14
4.2 Controller Setup ............................................................................................................. 14
4.2.1
Modbus Setup .............................................................................................................................................14
4.2.2
Relay Setup .................................................................................................................................................16
4.3 Gas Detection System Test ........................................................................................... 17
Modbus ............................................................ 19
5.1 Modbus Overview .......................................................................................................... 19
5.1.1
SLAVE NODE ADDRESS ...............................................................................................................................19
5.1.2
SLAVE BAUD RATE .......................................................................................................................................19
5.1.3
SLAVE PARITY .............................................................................................................................................19
5.1.4
SLAVE STOP BIT ...........................................................................................................................................19
5.1.5
SLAVE TERMINATION .................................................................................................................................19
5.2 Modbus Registers .......................................................................................................... 19
Diagnostics & Troubleshooting .................... 24
6.1 FAULT CODES .................................................................................................................. 24
Additional Information ................................. 25
7.1 Disposing of Instrument ............................................................................................... 25
7.2 Technical Specifications ................................................................................................ 25
Parts and Accessories .................................... 27
8.1 Part Numbers ................................................................................................................... 7
