Features:

1DI-1DO Version:
1 Working voltage: DC 12V (12V version); 24V (24V version)
2 Working current (12V): Standby 18MA, single relay ON current 35MA, maximum working current 53MA (1 relay ON)
3 1x photoelectrically isolated input ports (NPN low-level active), the input-output relationship can be set to Unrelated (default)/Self- locking/Momentary/Output=Input.
4 1x relay output ports,1x NPN switch input ports,
5 Communication interface: RS485/Ethernet (optional)
6 Standard MOSBUS instructions: Write 05/06/15/16, Read 01/02/03
7 Set the Slave Address through the DIP switch (A0-A5), which can support up to 63 devices in parallel.
8 Through the DIP switch (SW1=ON), the Ethernet and RS485 ports can be set as Ethernet to RS485 servers.
9 The default baud rate is 9600BPS, the baud rate can be selected through jumpers 2400 4800 19200 38400 57600 115200BPS
10 You can choose the check mode as No Parity, Even Parity and Odd Parity.
11 You can set the data sending return time, the maximum can be set to 1000ms
12 Size :55*72*22mm (only board),58*88*45mm (with din rail box):
13 Weight: 45g (only board);96g (with din rail box)
14 Maximum load: 10A/250VAC, 10A/125VAC, 10A /30VDC, 10A /28VDC, 10A /12VDC

2DI-2DO Version:
1 Working voltage: DC 12V (12V version); 24V (24V version)
2 Working current (12V): Standby 18MA, single relay ON current 35MA, maximum working current 90MA (2 relay ON)
3 2x photoelectrically isolated input ports (NPN low-level active), the input-output relationship can be set to Unrelated (default)/Self- locking/Interlocking/Momentary/Interlocking(2 ch)/Output=Input.
4 2x relay output ports,2x NPN switch input ports,
5 Communication interface: RS485/Ethernet (optional)
6 Standard MOSBUS instructions: Write 05/06/15/16, Read 01/02/03
7 Set the Slave Address through the DIP switch (A0-A5), which can support up to 63 devices in parallel.
8 Through the DIP switch (SW1=ON), the Ethernet and RS485 ports can be set as Ethernet to RS485 servers.
9 The default baud rate is 9600BPS, the baud rate can be selected through jumpers 2400 4800 19200 38400 57600 115200BPS
10 You can choose the check mode as No Parity, Even Parity and Odd Parity.
11 You can set the data sending return time, the maximum can be set to 1000ms
12 Size :67*72*22mm (only board),70*88*45mm (with din rail box):
13 Weight: 62g (only board);118g (with din rail box)
14 Maximum load: 10A/250VAC, 10A/125VAC, 10A /30VDC, 10A /28VDC, 10A /12VDC

Please contact me for detailed information!




DIP switch setting instructions (as shown above):
1 DIP switch Bit1-6(A0-A5): Set the Slave Address(RS485 Address) of the Modbus command

2 DIP switch bit7(SW1): Ethernet and RS485 port transparent transmission function. If you need to use this board as an RS485 Ethernet server, please turn SW1 to the ON position.

2 DIP switch bit8(SW2): When SW1=ON, SW2=ON can only transparently transmit Ethernet and RS485 data, and cannot control this board.

Typical application 1: Control the board through the Ethernet port (network port parameters need to be set)

Typical application 2: Control the board through RS485 port

Typical application 3: As an Ethernet to RS485 serial port server, controlling ordinary RS485 IO through Ethernet


1 Set the DIP switch SW1 to ON

2 Refer to the folder ''Network port parameter settings'' to set the network port parameters (baud rate 115200BPS)

3 Set the RS485 serial port parameters, refer to the
''ETROA01_ETROB02_ETAIC04_ETVOD08_ETIOE16 instruction manual''
Default baud rate ''9600 N 8 1''