IGS-NT Communication Guide
4
5.5.2 I-CR-R configuration jumpers 71
5.5.3 I-CR-R indication and diagnostic LEDs 72
5.6 Commands for IGS-NT 72
5.7 Commands for IM-NT 75
6 Connection 77
6.1 Recommended CAN/RS485 connection 77
6.1.1 CAN bus connection 77
6.1.2 CAN/fiber optic converter 78
6.1.3 CAN-Ethernet gateway 79
6.1.4 RS485 connection 80
6.1.5 Termination Resistors 81
6.1.6 Bias Resistors 81
7 Communication 82
7.1 Communication cables 82
7.1.1 RS 485 cable 82
7.1.2 CAN bus cable 83
7.1.3 RS232 cable 83
7.1.4 Cables for direct and modem connections 83
7.1.5 USB cable 84
7.1.6 Ethernet cable 85
7.2 SMS Message command 85
7.2.1 Controller address 85
7.2.2 Access code 85
7.2.3 Read value or setpoint 86
7.2.4 Adjust setpoint 86
7.2.5 Enter password 86
7.2.6 Gen-set control 87
7.2.7 Read Alarm list 87
7.2.8 Time delay 88
7.2.9 Remote switches (IG/IS-NT only) 88
7.2.10 ExtValues (IG/IS-NT only) 88
7.2.11 Answer message 89
7.2.12 Examples of SMS commands 89
7.3 Modbus Communication 90
7.3.1 Data reading 91
7.3.2 Data writing 91
7.4 Examples of Modbus Communication 93
7.4.1 Battery voltage – reading (read multiple registers) 94
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