Product Name:
DC 12V 24V 8DI-8DO 16DI 16DO RS485 Isolated communication Digital NPN PNP Input and Output MODBUS RTU PLC Expansion Board
Package inlcuded:
1 PCS DC 12V 24V DI-DO RS485 Digital Input & Output IO Module
(Specific according to the version and quantity you choose)
1 Product description
8/16ch optoelectronic isolation digital input channel (NPN/PNP Low level input)
8/16ch optoelectronic isolation digital output channel (ULN2803 NPN output)
RS485 MODBUS RTU standard communication protocol
Netted with configuration software, PLC or industry touch panel
Communication circuit designed for thunder protection and interference immunity
Used for signal collection and control in industrial field
2 Specification
1 Working voltage: DC 7-25V (9V 12V 24V)
2 Working current: 8-50MA
3 8 optically isolated input ports (NPN active low)
4 8 Darlington tube outputs (ULN2803 NPN output), the maximum load current of each channel is 300MA
5 RS485 communication isolation protection 3000VDC, DI digital input port isolation protection 3000VDC
6 Standard MODBUS RTU command (function code, 05/06/15/16 Write, 01/02/03 Read )
7 Baud rates: 1200 2400 4800 9600 (default) 19200 38400 57600 115200
8 Parity bits: None (default) /Even /Odd
9 Installation method Standard DIN rail installation
10 Dimensions 125×70×30mm
11 Weight: 114 grams
3 Interface definition(8I8O):
VCC : Power input+
GND: Power input-
DO1: digital output channel 1
DO2: digital output channel 2
DO3: digital output channel 3
DO4: digital output channel 4
DO5: digital output channel 5
DO6: digital output channel 6
DO7: digital output channel 7
DO8: digital output channel 8
DI1 : Digital input channel 1
DI2 : Digital input channel 2
DI3 : Digital input channel 3
DI4 : Digital input channel 4
DI5 : Digital input channel 5
DI6 : Digital input channel 6
DI7 : Digital input channel 7
DI8 : Digital input channel 8
A+: RS485 signal A+
B-: RS485 signal B-
For more information, please open the link and download:
//1drv.ms/u/s!Av4PLxH_z8f1iW1D0YvDqhn082lY?e=WVNQhd
Application
PLC Output expansion board
Smart Home,Home Automation ,Wiser Home;
PTZ CCTV Camera
Security Monitoring
Identification system;
Motor FW & BW
Automatic curtain control
1 Digital Input Wiring Diagram
2 Digital output wiring diagramNote: The Darlington tube has only two states of ''high resistance'' and ''conduction'', and the output level cannot be measured with a multimeter.
RS485 Networking Diagram
Modbus Rtu Register:
