PET-2254P

Offering a diverse array of digital I/O functionalities, the PET-2254P module serves as an Ethernet-based monitoring and control unit. Utilizing the Modbus TCP/UDP protocol, it enables remote control via a 10/100 M Ethernet network. Given that Modbus has emerged as the de facto standard communication protocol in industrial applications, facilitating seamless connectivity among industrial electronic devices, the PET-2254P integrates seamlessly with HMI, SCADA, PLC, and other software systems.

Featuring a 16-channel programmable universal DIO, each I/O port can be configured as a DI or DO port. The PET-2254P provides digital output channels capable of driving a 350 mA load, alongside configurable power-on and safe values for digital output. Equipped with 2 Ethernet ports for daisy chain connection, it enhances flexibility in device placement, simplifies installation, and reduces infrastructure costs. Additionally, it features 8 kV ESD protection, 4 kV EFT protection, 3 kV surge protection, and 3000 VDC I/O isolation to enhance noise protection capabilities in industrial environments.

Moreover, the module facilitates DI to DO pair connections over Ethernet, allowing for seamless configuration and continuous polling of local DI channel statuses, with subsequent writing to remote DO devices via the Modbus/TCP protocol.

Equipped with a removable terminal block connector for easy and robust wiring in industrial applications, it features a powerful 32-bit ARM MCU to efficiently handle network trafficking.

The PET-2254P module supports the MQTT protocol, functioning as both a message publisher and subscriber. Upon connection to the MQTT Broker, the module's I/O status can be published in topic form and receive messages from subscribed topics. In communication, if disconnected from the broker, the module employs a reconnection mechanism to automatically reconnect, alongside a Keep-Alive Interval mechanism to maintain connection with the Broker.

Furthermore, adhering to the standard SNMP V2c specification, the PET-2254P transmits module and I/O information to SNMP network management equipment or software, enabling administrators to monitor its status in real-time. With the Trap function enabled, it notifies administrators of changes in module I/O status or reboots, ensuring prompt updates on channel status.

• Datasheet
• User Manual