Providing various digital I/O functions, the tET/tPET series is an IP-based Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP protocol. Modbus has become a de facto standard communications protocol in industry and is now the most commonly available means of connecting industrial electronic devices. This makes the tET/tPET series perfect integration with the HMI, SCADA, PLC, and other software systems.
The functionality of the tET/tPET series is almost the same as the ET-7000/PET-7000 series. The tET/tPET series tiny Ethernet I/O modules support various I/O types, like photo-isolated digital input, relay contact, photoMOS relay, and open-collector output. The module can be used to create DI to DO pair-connect through the Ethernet. Once the configuration is completed, the tET/tPET series module can poll the status of local DI channels and then use the Modbus/TCP protocol to continuously write to a remote DO device in the background.
The tET/tPET series provides a dual watchdog: CPU watchdog and host watchdog. The CPU watchdog automatically resets itself when the built-in firmware runs abnormally. The host watchdog monitors the host controller (PC or PLC), and the output of the module can go to a predefined state (safe value) when the host fails.
For maximum space savings, the tET/tPET series is offered in an amazing tiny form factor that makes it can be easily installed anywhere, even directly embedded into a machine. It is equipped with two removable terminal block connectors for easy wiring and features a powerful 32-bit ARM MCU to handle efficient network trafficking. The tPET series offers true IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) using a standard category 5 Ethernet cable to receive power from a PoE switch like the NS-205PSE. When there is no PoE switch on site, the tPET series accepts power input from the DC adapter.
Factory, Building, and Home Automation Remote Maintenance
|Watchdog Timer||Module, Communication (Programmable)|
|EFT (IEC 61000-4-4)||±4 kV for Power Line|
|ESD (IEC 61000-4-2)||±4 kV Contact for Each Terminal
±8 kV Air for Random Point
|Load Voltage||+10 to +40 VDC|
|Load Current||650 mA/channel|
|Overvoltage Protection||+48 VDC|
|Ports||10/100 Base-TX, 8-Pin RJ-45 x1 (Auto-negotiating, Auto-MDI/MDIX, LED indicator)|
|Powered from Terminal Block||+12 to +48 VDC|
|Dimensions (mm)||52 x 95 x 27 (W x L x H)|
|Operating Temperature||-25 ~ +75 °C|
|Storage Temperature||-30 ~ +80 °C|
|Humidity||10 to 90% RH, Non-condensing|
|tET-A4 CR||Tiny Ethernet Module with 4-ch (Source-type, PNP) DO (RoHS)||1|