ET-2268 is an 8-channel signal relay output (4 Form A and 4 Form C) module. It is equipped with 8 LEDs to monitor the relay output status and offers configurable DO power-on value and safe value settings. The module includes a built-in 2-port Ethernet switch, facilitating a Daisy-chain topology. This feature offers flexibility in device configuration, simplifies installation, and reduces infrastructure costs. Additionally, the module provides EMS (EFT/ESD/Surge) protection and 3000 VDC I/O isolation to enhance noise protection capabilities in industrial environments. ET-2268 is suitable for small signal switching applications.
Moreover, the module supports I/O Pair-Connection functionality, allowing the establishment of DI-to-DO pairing connections with the remote module via Ethernet. Once configured, remote DI data can be written to local DO channels in Pull mode via Modbus TCP.
ET-2268 supports the MQTT protocol, serving as a publisher and subscriber of messages. When connected to an MQTT broker server, it can publish real-time statuses of I/O in the form of topics and receive messages from subscribed topics. If a disconnection occurs between the module and the broker during communication, its mechanism for reconnecting can automatically restore the connection. Additionally, its Keep-Alive interval mechanism ensures a continuous connection with the broker.
ET-2268 supports the SNMP V2c specification, enabling it to transmit both module and I/O information to SNMP network management devices or software (SNMP Network Management Software). This allows administrators to monitor module status in real-time. Additionally, if the Trap function is enabled, the module can proactively send messages to administrators when there are changes in I/O statuses or during restarts, keeping them informed of channel statuses at all times.