12 Digital Input - 8 Digital Output Module with TCP/ IP
MPN: AT-23400
Features and Benefits
- 12ch digital input (dry/wet contacts) / 8ch digital output (relay output)
- Watchdog timer to recover the system
- Protocols: MODBUS TCP, TCP/IP, HTTP, DHCP, DNS, UDP, ARP
- Built-in Web Server for Real-Time Monitoring
- Optically Isolated Digital IOs
Certifications
- Overview
- Specifications
AT-23400 – 12 Digital Input & 8 Digital Relay Output Module with TCP/IP
The AT-23400 is a versatile 12-channel Digital Input and 8-channel Relay Output Module designed for efficient monitoring and control in industrial automation systems over TCP/IP networks. It provides seamless integration between field devices and Ethernet-based control systems, making it ideal for distributed I/O and process control applications.
The module features 12 sinking-type digital inputs with 5000 Vrms isolation, ensuring safe and noise-immune signal acquisition. Its 8 relay outputs (1 Form A, SPDT) are capable of switching both AC and DC loads up to 5A @ 250 VAC / 30 VDC, built using durable AgSnO₂ / AgNi contact materials for long-lasting reliability.
With web-based configuration, watchdog protection, and a rugged mild steel enclosure, the AT-23400 offers a reliable, easy-to-install, and maintenance-friendly solution for modern automation networks.
Digital Inputs
| Channels | 12 |
|---|---|
| Isolation voltage | 5000Vrms |
| Logic Level 1 | Min. 6v |
| Logic Level 0 | Max. 5v |
| Type of Inputs | Sinking |
Digital Output
| Channel | 8 Relay output |
|---|---|
| Relay Type | 1 form A(SPDT) |
| Contact Material | AgSnO2,AgNi |
| Contact Rating | 5A 250 VAC/30VDC |
Environment
| Operating Temperature | 0°C - 60°C |
|---|---|
| Storage Temperature | 0°C - 70°C |
| Operating Humidity | 20-95% RH |
Ethernet Interface
| Network Protocols | MODBUS TCP, TCP/IP, HTTP, DHCP, DNS, UDP, ARP |
|---|---|
| Number of Ports | 1 |
| Interface | RJ-45 Female |
| Full Duplex Mode | Support IEEE 802.3x flow control |
| Half Duplex Mode | Support CSMA/CD Protocol |
| Ethernet Port Specification | RJ-45, 10/100 Mbit/s |
Standards and Certifications
| RoHS |
|---|
Resources Content
Model Content
Specifications
General Information
Electrical Specifications
Structure
Environmental Specification
| Country of Origin | India |
| RFID Frequency | 125 KHz |
| Installation | Plug-and-Play |
| Weight | 150g |
| Reading Distance | 1mm to 40mm |
| Communication Interface | USB |
| USB Class | HID |
| Port 2 | RS-485 : D+, D-, GND |
| Output Format | ASCII (Decimal Tag Number) |
| Card / Tag Supported | EM-4100 Tags, Passive Tags |
| Compatible with | Windows, Linux, Android, MAC |
| Antenna | Built-in |
| Relative Humidity | 5% – 85% |
| Storage Temperature | -5°C to 80°C |
| Operating Temperature | 0°C to 65°C |
| Operating Voltage | 5V @50mA (not required external supply) |
Conference Room
Testing & Assembly
R & D
Environment Testing Lab
Office
