Features:
1 Working voltage: DC 12V
2 Working current: standby 12MA, 1 relay conduction 40MA, 2 relay conduction 68MA, 3 relay conduction 94MA, 4 relay conduction 120MA, 5 relay conduction 148MA, 6 relay conduction 174MA, 7 Two relays conduct 199MA, 8 relays conduct 224MA
3 Open, close, jog, self-lock, interlock, and delay six working modes
4 MODBUS command (default) and AT command two command control modes
5 The maximum delay under MODBUS command is 255 seconds, the maximum delay under AT command is 9999 seconds
6 AT commands can be input by serial port super terminal (serial assistant); MODBUS commands can be input by "Modbus Poll" besides serial port super terminal input
7 In MODBUS command mode, up to 64 devices can be used in parallel
8 The default baud rate is 9600BPS, you can select the baud rate 2400 4800 19200 BPS through the jumper
9 Size: 100 * 72 * 20mm (circuit board); 120 * 88 * 42mm (with rail box)
10 Weight: 120g (circuit board); 198g (with rail box)
11 Maximum load: 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC
Package Included:
1 x 8 Channel RS485 Relay Module
2 Working current: standby 12MA, 1 relay conduction 40MA, 2 relay conduction 68MA, 3 relay conduction 94MA, 4 relay conduction 120MA, 5 relay conduction 148MA, 6 relay conduction 174MA, 7 Two relays conduct 199MA, 8 relays conduct 224MA
3 Open, close, jog, self-lock, interlock, and delay six working modes
4 MODBUS command (default) and AT command two command control modes
5 The maximum delay under MODBUS command is 255 seconds, the maximum delay under AT command is 9999 seconds
6 AT commands can be input by serial port super terminal (serial assistant); MODBUS commands can be input by "Modbus Poll" besides serial port super terminal input
7 In MODBUS command mode, up to 64 devices can be used in parallel
8 The default baud rate is 9600BPS, you can select the baud rate 2400 4800 19200 BPS through the jumper
9 Size: 100 * 72 * 20mm (circuit board); 120 * 88 * 42mm (with rail box)
10 Weight: 120g (circuit board); 198g (with rail box)
11 Maximum load: 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC
DIN rail Box parameters:
Product model: UM72
Color: green
Width: suitable for PCB board width UM72(72mm)
Insulation grade: flame-retardant VO grade
Backplane length: suitable for 100 mm PCB boards
Net weight: 72g
Installation: DIN35 and C45 rail
Glossary:
NO : Relay normally open contact
COM : Relay common contact
NC : Relay normally closed contact
Open : NO connection COM, NC disconnect COM
Close : NO disconnect COM, NC connection COM
Momentary : Enter the Momentary command, the Rreceiver Relay is Open, delay of 0.5 seconds after, Relay is Close;
Toggle : Enter the Toggle command, the Rreceiver Relay is Open, Enter the Toggle command again, Relay is Close;
Latched : Enter the Channel 1 Latched command, the receiver Channel 1 is Open, the Channel 2 is Close.
Enter the Channel 2 Latched command the receiver Channel 2 is Open, the Channel 1 is Close.
Enter the Channel 3 Latched command the receiver Channel 1 is Close, the Channel 2 is Close.
Delay : Enter the Delay command, the Rreceiver Relay is Open, delay of 0-9999 seconds(MODBUS command is 0-255 seconds )after, Relay is Close;
During the delay, Eter the Close command, immediately close the relay
Slave ID: A0-A5 is the slave ID, you can choose 64 different slave ID.
Under the MODBUS command mode,the slave ID must be correct
1 This version has 2 Command modes, MODBUS RTU Command and AT Command. 2 The default Command is the MODBUS RTU Command, compatible with older versions.
3 Switch to AT command by shorting the M0 pad.
4 The default baud rate is 9600BPS. You can also select the baud rate by shorting the M1 and M2 pads.
command Description, Please refer to "8 Channel Rail RS485 Relay commamd"
Typical applications:
1.When controlling a module, you can use the MODUBS RTU instruction or the AT instruction. In AT command mode, the dial switch (slave address) is invalid and can only control one module at a time.
2.MODBUS command mode (HEX), you can control a variety of ways: Serial Hyper Terminal Control (need to manually add the CRC), Modbus Poll software control (software automatically add the CRC), PLC or MCU process control
Wiring Diagram:
1 DC 12V control circuit,Wiring diagram below. "LOAD" may be camera,LED lights, fans, motors and other DC 12V equipment
2 DC 1-110VAC 85-265V control circuit,Wiring diagram below(Note:If not DC 12V load, need another DC 12V power supply). "LOAD" may be LED lights, fans, motors Lights, fluorescent lights, solar water heaters and other DC AC equipment
Package Included:
1 x 8 Channel RS485 Relay Module