Ethernet IO remote digital inputs outputs 24V: 12xDI, 8xDO relay, Modbus TCP, REST, MQTT, OPC UA
Industrial module for remote control, monitoring and collection of digital signals 12x DI and 8x DO via Ethernet, OPC UA, Modbus TCP, MQTT, REST or Web server. Alarm system with email notification, automatic control of outputs according to input, power supply 12-24 VDC, DIN mounting. More
Code: 57738
Industrial module for remote control, monitoring and collection of digital signals 12x DI and 8x DO via Ethernet, OPC UA, Modbus TCP, MQTT, REST or Web server. Alarm system with email notification, automatic control of outputs according to input, power supply 12-24 VDC, DIN mounting. More
Code: 57738
12 inputs and 8 relay outputs via Ethernet
The W&T 57738 connects 12 digital inputs (DI) and 8 relays to a 10/100BaseT Ethernet network. It enables monitoring and control via a web interface and integration into higher-level systems using OPC UA, MQTT, REST or Modbus TCP.
Do you need to select or order W&T 57738?
Please send us the required quantity and a description of the wiring configuration. We will check availability and suitable accessories.
Usage
The module is used for collecting status signals, fault reporting and remote control within industrial or technical infrastructure. Statuses can be displayed in a browser, transferred to a visualisation system or used in pre-defined actions.
Technical specifications for W&T 57738
| Digital outputs | 8× potential-free contacts, max. 24 V DC / 2 A or 24 V AC / 2 A With suitable isolating relays, voltages of up to 230 V. |
|---|---|
| Digital inputs | 12× digital inputs Maximum input voltage ±30 V Reverse polarity protection within this range Switching threshold 4 V ± 0.5 V Current when switched on = 2.2 mA Integrated 32-bit pulse counter |
| Network interface | Automatic 10/100BaseT detection |
| Power supply | 12–24 V DC, current consumption approximately 100 mA at 24 V PoE – Power over Ethernet |
| Galvanic isolation | Outputs relative to the network interface: min. 1000 V Inputs relative to the network interface: min. 2000 V Inputs versus outputs: min. 1000 V |
| Connectors and terminal blocks | 3 x 12x, 1 x 11x plug-in screw terminal blocks for inputs and outputs – plug-in 1 x 4x, plug-in screw terminal for power supply – plug-in 1 x RJ45 for network connection |
| Signalling | Status LEDs for the network 24 LEDs for displaying digital states |
| Protocols and services | HTTP and HTTPS TCP and UDP sockets, client and server MQTT – Publishing and Subscribing REST SNMP V1, V2, V3, including traps Sending emails via the SMTP protocol OPC server Modbus TCP Inventory and device group management |
| Response times | Data and switching operation: typically 20 ms |
| Housing and mounting | Plastic housing for DIN rail mounting 90 × 116 × 56 mm (L × W × H) |
| Degree of protection | IP20 |
| Weight | approx. 250 g |
| Storage temperature | -25 to +70 °C |
| Operating temperature | 0 to +60 °C |
| Permissible relative humidity | 5 to 95 per cent RH, non-condensing |
| Contents of the delivery | 1 x Web-IO 4.0 Digital, 12 inputs, 8 relay outputs 1× quick start guide The power supply and other accessories must be ordered separately |
Signals, communication and events
- The relay outputs consist of seven changeover contacts and one make contact. The contacts are rated for a maximum of 24 V AC/DC and 2 A; a suitable isolating relay is required for higher voltages. The outputs are not intended for direct switching of 230 V.
- The web interface supports HTTP/HTTPS. OPC UA, MQTT Publish/Subscribe, REST and Modbus TCP are available for integration; individual services and the necessary permissions are configured on the device.
- Up to 30 actions can be configured, such as an email, an SNMP trap, an output switch or an HTTP request. SNMP supports versions V1, V2 and V3.
- Box-to-Box mode transfers switching states between suitably configured Web-IO devices over the network. Correct mapping of inputs and outputs is part of the configuration.
- The inputs support 32-bit event counters. The parameters for input voltage, switching threshold and current consumption are governed by the table for this model.
Commissioning and accessories
Check the module’s power supply, common conductors, polarity and output loads. Once connected to the network, configure the IP address, access rights, required protocols and event responses. Before connecting the load, check the wiring in accordance with the manual for the specific model.
Contents of the delivery
- 1 x Web-IO 4.0 Digital, 12 inputs, 8 relay outputs
- 1× quick start guide
- The power supply and other accessories must be ordered separately
Frequently Asked Questions
How many physical channels does this model have?
The relay outputs consist of seven changeover contacts and one make contact. The contacts are rated for a maximum of 24 V AC/DC and 2 A; a suitable isolating relay is required for higher voltages. The outputs are not intended for direct switching of 230 V.
Do I need a special programme to operate it?
A web interface is available for basic monitoring and control. A supported protocol and its access rights are configured for the host system.
Does ‘Box-to-Box’ refer to a fixed response time?
No. The typical response times shown in the table do not guarantee the overall response of the entire network. The result also depends on network communication and the configuration of both devices.
Why order from FOXON?
Before placing an order, we will check the current availability of the part and confirm the estimated delivery date. We will assist you in selecting the equipment and necessary accessories based on the wiring configuration and required communication. We will confirm the warranty terms and the scope of any diagnostics or repairs for the specific quotation.
Documentation and technical consultancy
Technical data and documentation W&T 57738
Manuals, firmware and tools for this model can also be found in the Downloads tab. For service enquiries, please use sale and repair of FOXON industrial parts.
Do you need to select or order W&T 57738?
Please send us the required quantity and a description of the wiring configuration. We will check availability and suitable accessories.
Diagrams and illustrations
Further related links
Technical specifications for W&T 57738
| Digital outputs | 8× potential-free contacts, max. 24 V DC / 2 A or 24 V AC / 2 A With suitable isolating relays, voltages of up to 230 V. |
|---|---|
| Digital inputs | 12× digital inputs Maximum input voltage ±30 V Reverse polarity protection within this range Switching threshold 4 V ± 0.5 V Current when switched on = 2.2 mA Integrated 32-bit pulse counter |
| Network interface | Automatic 10/100BaseT detection |
| Power supply | 12–24 V DC, current consumption approximately 100 mA at 24 V PoE – Power over Ethernet |
| Galvanic isolation | Outputs relative to the network interface: min. 1000 V Inputs relative to the network interface: min. 2000 V Inputs versus outputs: min. 1000 V |
| Connectors and terminal blocks | 3 x 12x, 1 x 11x plug-in screw terminal blocks for inputs and outputs – plug-in 1 x 4x, plug-in screw terminal for power supply – plug-in 1 x RJ45 for network connection |
| Signalling | Status LEDs for the network 24 LEDs for displaying digital states |
| Protocols and services | HTTP and HTTPS TCP and UDP sockets, client and server MQTT – Publishing and Subscribing REST SNMP V1, V2, V3, including traps Sending emails via the SMTP protocol OPC server Modbus TCP Inventory and device group management |
| Response times | Data and switching operation: typically 20 ms |
| Housing and mounting | Plastic housing for DIN rail mounting 90 × 116 × 56 mm (L × W × H) |
| Degree of protection | IP20 |
| Weight | approx. 250 g |
| Storage temperature | -25 to +70 °C |
| Operating temperature | 0 to +60 °C |
| Permissible relative humidity | 5 to 95 per cent RH, non-condensing |
| Contents of the delivery | 1 x Web-IO 4.0 Digital, 12 inputs, 8 relay outputs 1× quick start guide The power supply and other accessories must be ordered separately |
VIDEO: Easily Collect Machine Data via OPC UA & MQTT
At the beginning of 2024 we introduced a new product from the German manufacturer of industrial modules W&T to the Czech market. Check out our short videos to see how easy it is to set up and use W&T sensors and digital and analogue inputs and outputs for data acquisition using OPC UA and MQTT communications.
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