SPECIFICATIONS

Brand Name: eletechsup

Choice: yes

Condition: New

High-concerned chemical: none

Origin: Mainland China

Type: Relay

is_customized: Yes

semi_Choice: yes

Product Name: 8CH Opto Isolated Modbus RTU RS485 IO Expansion Board DC7-25V ULN2803 300mA For PLC Smart Home CCTV PTZ

Package inlcuded:
1 PCS DC 7-30V 8DI-8DO Safety Barrier RS485 Digital Input & Output IO Module

1 Product description

8ch optoelectronic isolation digital input channel (NPN Low level input)
8ch 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 port optically isolated input ports (NPN active low)
4 8 port 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 Size : 125×110×22mm

11 Weight: 130 grams

3 Interface definition:

Vi : Power input+
G: Power input-
Vo: =Vi
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 contact me

Application

PLC DIO Output expansion board
Smart Home,Home Automation ,Wiser Home;

PTZ CCTV Camera

Security Monitoring

Identification system;

Motor FW & BW
Automatic curtain control
Relay Solenoid valve

1 NPN Digital Input Wiring Diagram
2 NPN Digital output wiring diagram

Note: The Darlington tube has only two states of ''high resistance'' and ''conduction'', and the output level cannot be measured with a multimeter.