8 channal Digital Input 8 ch Output Isolated MODBUS RTU RS485 SD12

8 channal Digital Input 8 ch Output Isolated MODBUS RTU RS485 SD12 The main parameters: Digital input channel: 8 channels (active low) Digital output channel: 8 channels (NPN transistor open collector output 500mA) Operating temperature range: -20 ° C ~ 70 ° C External power supply: DC9V~30V/2W Isolation protection: 1500VDC Installation method: standard DIN rail mounting or screw mounting Dimensions: 125*73*35mm Features: RS485 MODBUS RTU standard communication With communication and input and output status indicators Communication circuit adopts lightning protection and anti-interference design Can be widely used for signal acquisition and control of industrial field devices Instructions for use: 1. Connect the computer and module with RS485 converter 2. Connect the 12V or 24V external power supply to the module and power it on. To avoid unnecessary damage, please check whether the positive and negative terminals of the power supply are connected correctly before powering on. 3. Open the debugging software, select the corresponding module model, enter the function vdebugging or parameter setting interface 4. Set the correct communication parameters, open the communication port 5. Select the appropriate settings, acquisition and control options AVcc – gt; External power supply input positive AGnd – gt; External power supply input negative / Power ground DO_01 – gt; Digital output channel 1 DO_02 – gt; Digital output channel 2 DO_03 – gt; Digital output channel 3 DO_04 – gt; Digital output channel 4 DO_05 – gt; Digital output channel 5 DO_06 – gt; Digital output channel 6 DO_07 – gt; Digital output channel 7 DO_08 – gt; Digital output channel 8 DI_01 – gt; Digital input channel 1 DI_02 – gt; Digital input channel 2 DI_03 – gt; Digital input channel 3 DI_04 – gt; Digital input channel 4 DI_05 – gt; Digital input channel 5 DI_06 – gt; Digital input channel 6 DI_07 – gt; Digital input channel 7 DI_08 – gt; Digital input channel 8 485B – gt; RS485 signal B- 485A – gt; RS485 signal A+