EDM-1184 is 8 Channel digital input and 4 Channel (normally open) relay output module,  supports 2-Ports 100M Ethernet, supports Modbus TCP protocol,  Can be directly connected to Configuration Software, PLC,DCS and Industrial Control Touch Screen, etc.
Features
1. supports 2-Ports 100M Ethernet and can be used as  a switch.
2. Supports standard Modbus TCP protocol and has simple configuration.
3. Supports 1024 Digital and 256 Analog expansion Modbus buffers for easy data exchange between master stations.
4. Provide Windows configuration tool software for module management, configuration, and debugging.
5. Digital input, power supply, and communication are indicated by LED lights.
6. Supports AC/DC10~30V wide voltage supply, and supports overcurrent and overvoltage protection.
7. Card style design, compact structure, small volume, and small space occupation.
8. I/O interface adopts a press type terminal block, which is fast and convenient to connect.
9. Standard 35mm DIN rail installation.
Digital Input
1. Input Points: 8
2. Input Type: Dry contact, NPN or PNP Transistor
3. Input Range: 0: 0~1V, 1: 10~30V
4. Input Filtering: 1~65535ms
5. Pulse Frequency: < 200Hz
6. DI Counter: 32bit
7. Isolation Method: Digital Isolation Chip
8. Isolation Voltage:  3KVrms
Relay Output
1. Output Points: 4
2. Output Type: A (Normally Open) Relay
3. Load Capacity: DC24V @ 2A (Max.)
Communication interface
1. Communication: 2-Port 10/100M Ethernet
2. protocol: Modbus TCP
3. Interface type: 2 x RJ45
4. Distance: < 100m
5. Isolation: Transformer
6. Transfer Rate: 100Mbps
7. Master Quantity: 5
Electrical Characteristics
1. Watchdog: Internal Software Watchdog
2. Power Supply: AC/DC10~30V, 24V @ 100mA (Max.)
3. Power Protection: Reverse Connection / Overcurrent / Overvoltage
4. I/O Interface: Non screw 3.81mm press terminal block
5. Dimensions: Length x Width x Height (mm), 142x96x30 (mm)
6. Shell Material: ABS+PC
7. Installation: 35mm DIN Rail
Environmental Characteristics
1. Operating Temperature -20℃~+70℃
2. Storage Temperature -40℃~+85℃
3. Relative Humidity 5%~95%, No Condensation
4. IP Grade IP20
Indicator light definition
1. PWR: power indication, "bright" power supply is normal
2. SYS: TCP connection OK, yellow LED lights up
3. DI0~DI7: digital input indicator, "bright" input is 1
Default Settings
1. IP Address: 192.168.10.245
2. Subnet Mask: 255.255.255.0
3. Gateway Address: 192.168.10.1
4. TCP Port Number: 502
5. Slave ID: 255
Restore Default Settings
When the module is running, press and hold the Default button for 3 seconds until the SYS indicator light starts flashing, then release the Default button to restore the configuration register of the module to its default settings.