Data Acquisition
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
CPU Module | |
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CPU | 32-bit ARM |
Watchdog Timer | Module, Communication (Programmable) |
EMS Protection | |
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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 |
LED Indicators | |
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Status | Run, Ethernet |
Digital Input/Counter | |
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Channels | 2 |
Type | Wet Contact |
Sink/Source (NPN/PNP) | Sink/Source |
ON Voltage Level | +10 to +50 VDC |
OFF Voltage Level | +4 VDC (max.) |
Max. Counts | 4,294,967,295 (32-bit) |
Frequency | 3.5 kHz (without filter) |
Min. Pulse Width | 0.15 ms |
Isolation | 3750 Vrms |
Input Impedance | 10 kΩ |
Overvoltage Protection | +70 VDC |
Digital Output | |
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Channels | 2 |
Type | Open Collector |
Sink/Source (NPN/PNP) | Source |
Load Voltage | +10 to +40 VDC |
Load Current | 650 mA/channel |
Overvoltage Protection | +48 VDC |
Short-circuit Protection | Yes |
Isolation | 3750 Vrms |
Ethernet | |
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Ports | 10/100 Base-TX, 8-Pin RJ-45 x1 (Auto-negotiating, Auto-MDI/MDIX, LED indicator) |
Protocol | Modbus TCP, Modbus UDP, and MQTT |
Power | |
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Consumption | 0.9 W |
Powered from Terminal Block | +12 to +48 VDC |
Mechanical | |
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Dimensions (mm) | 52 x 95 x 27 (W x L x H) |
Installation | DIN-Rail mounting |
Environment | |
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Operating Temperature | -25 ~ +75 °C |
Storage Temperature | -30 ~ +80 °C |
Humidity | 10 to 90% RH, Non-condensing |
PRODUCT SERIES | DESCRIPTION | QNT | INQUIRY |
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tET-P2A2 CR | Tiny Ethernet Module with 2-ch DI and 2-ch (Source-type, PNP) DO (RoHS) | 1 |