Contents
3.3 Analog Input Channel Jumper Settings ..................................... 3-7
3.3.1 Channel AI0 Voltage or Current Type Selection (JP8)........ 3-7
3.3.2 Channel AI1 Voltage or Current Type Selection (JP7)........ 3-8
3.3.3 Channel AI2 Voltage or Current Type Selection (JP5)........ 3-9
3.3.4 Channel AI3 Voltage or Current Type Selection (JP6)......3-10
3.4 Application Wiring .................................................................... 3-11
3.4.1 I/O Wire Connection.......................................................... 3-11
3.4.2 Power Supply Wire ...........................................................3-13
3.4.3 Communication Wiring...................................................... 3-14
3.5 Mounting Support.....................................................................3-15
3.5.1 Installing DIN-Rail Mount .................................................. 3-15
3.5.2 Installing Wall Mount ......................................................... 3-16
3.6 Default Settings........................................................................3-17
3.7 Technical Support.....................................................................3-18
4MODBUS RTU Protocol ...................................................................... 4-1
4.1 Command Format ...................................................................... 4-2
4.1.1 READ Command ................................................................ 4-2
4.1.2 WRITE Command............................................................... 4-3
4.2 Function List ............................................................................... 4-4
4.2.1 Function 0x01 – Read Discrete Coils ................................. 4-5
4.2.2 Function 0x02 – Read Discrete Inputs ............................... 4-7
4.2.3 Function 0x03 – Read Analog Output Channel Value ........ 4-9
4.2.4 Function 0x04 – Read Analog Input Channel Value .........4-10
4.2.5 Function 0x05 – Force Coil...............................................4-13
4.2.6 Function 0x06 – Write Analog Output Channel Value ......4-14
4.2.7 Function 0x41 – Read Module Setting .............................4-16
4.2.8 Function 0x42 – Write Module Setting..............................4-17
