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Providing networking ability and various digital I/O functions, the PETL-7000 and tET/tPET series are IP-based Ethernet I/O monitoring and control modules. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP/UDP 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 PETL-7000/tET/tPET series perfect integration with the HMI, SCADA, PLC and other software systems.
The functionality of the PETL-7000/tET/tPET series modules is almost the same as the PET-7000 series. The PETL-7000/tET/tPET series 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 modules can poll the status of the local DI channels and then use the Modbus/TCP protocol to continuously write to a remote DO device in the background. It's useful when connecting digital I/O devices that do not themselves have Ethernet capability. |
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 Network Configuration |
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DHCP minimizes configuration errors caused by manual IP address configuration, such as address conflicts caused by the assignment of an IP address to more than one computer or device at the same time. The PETL-7000/tET/tPET series module supports the DHCP client function, which allows to PETL-7000/tET/tPET easily obtain the necessary TCP/IP configuration information from a DHCP server. The module also contains a UDP responder that transmits its IP address information a UDP search from the eSearch utility program, making local management more efficient.
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| Built-in Web Server |
The series of Ethernet I/O modules features a powerful 32-bit MCU to enable efficient handling of network traffic. It also has a built-in web server that provides an intuitive web management interface to allow users to modify the settings of the module including DHCP/Static IP, gateway/mask and serial ports. |
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Built-in Dual Watchdog |
| The module provides dual watchdog: CPU watchdog (hardware function) and host watchdog (software function).
The CPU watchdog which automatically resets the CPU if the built-in firmware is operating abnormally, while the host watchdog set the digital output with predefined safe-value when there is no communication between the module and the host (PC or PLC) for a period of time (watchdog timeout). The dual watchdog is an important feature that ensures the module operates continuously, even in harsh environments. |
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| PWM (Pulse Width Modulation) |
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The DOs on the t(P)ET/PETL series provide PWM (pulse generation) function. Uses can set different frequency and duty cycle for each digital output channel. In addition, the two DO channels can work independently or simultaneously. The t(P)ET/PETL series product reduces the complexity of the control system and enhances the timing accuracy. |
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| Frequency Measurement |
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he t(P)ET/PETL series module also provides the function of the frequency measurement; it gets the DI count in a certain time and calculate the frequency. Rather than polling by the remote host, our module can count out the frequency directly, reduce the communication delay caused by two ends and also increase the accuracy of frequency measurement. In order to applying for more applications, this module provides 3 scan modes and 4 moving average methods for user to select the best way in their applications. This feature can be used for rotation and speed measurements. |
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| Low Power Consumption |
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The PETL-7000/tPET series module 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 such as the NS-205PSE. If there is no PoE switch on site, the module will also accept power input from a DC adapter. The PETL-7000/tET/tPET series is designed for ultra-low power consumption, reducing hidden costs from increasing fuel and electricity prices, especially when you have a huge amount of device servers installed. Reducing the amount of electricity consumed by choosing energy-efficient equipment can have a positive impact on maintaining a green environment. |
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| Convenience |
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The module is equipped with removable terminal block connectors to allow easy wiring. For maximum space savings, the tET/tPET series is offered in an amazing tiny form-factor while the PETL-7000 series is palm-size form-factor; this makes them can be easily installed in anywhere, even directly embedded into a machine. |
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| Ventilated Housing Designed to Operate Between -25¢XC to +75¢XC |
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PETL-7000 is housed in a fire retardant plastic (UL94-V0 Level) shell/case with a column-like ventilator that helps to cool the working environment inside the shell/case and allows PETL-7000 to operate at temperatures ranging from -25 ¢XC to +75 ¢XC. |
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| Product Lines Comparison Table |
| Comparison Item |
tPET |
PETL-7000 |
PET-7000 |
| CPU |
32-bit ARM |
80186 |
| Ethernet |
10/100 M, PoE |
| Modbus TCP/UDP |
Yes |
| Web Configuration |
Yes |
| Web HMI |
Simplified |
Yes |
| Multi-client |
Yes (max. connections: 5) |
Yes (max. connections: 12) |
| IP Filter |
Yes (white list) |
| Latched DI |
Yes |
| DI as Counter |
32-bit, 3.5 kHz |
32-bit, 500 Hz |
| I/O Pair-Connection |
Yes (Poll/Push Mode) |
Yes (Poll Mode) |
| PWM |
Yes (100 Hz max.) |
- |
| Frequency Measurement |
Yes (3.5 kHz max.) |
- |
| Dual Watchdog |
Yes (CPU, host) |
Yes (Module, host) |
| ESD Protection |
+/- 4 kV |
| Surge Protection |
- |
+/- 0.5 kV |
| Form Factor |
Tiny Size |
Palm Size |
| Remarks |
Cost-effective |
- |
| Note: tET = tPET without PoE. |
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Will be available |
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Available soon |
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Will be phased out |
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| Digital Input/Relay Output |
| Model |
Ethernet |
DI |
Relay Output |
| Channel |
Type |
Sink/Source |
Channel |
Relay |
Type |
Max. Load Current |
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PETL-7060 |
10/100 M, PoE |
6 |
Wet |
Sink, Source |
6 |
Power Relay |
Form A
(SPST N.O.) |
5.0 A/channel |
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Will be available |
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Available soon |
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Will be phased out |
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| tET/tPET Series |
| Model |
Ethernet |
PoE |
Bus |
Protocol |
I/O Specification |
| Isolation |
DI |
DO |
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tET-P6 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
6-ch (Sink/Source) |
- |
| tPET-P6 |
Yes |
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tET-PD6 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
6-ch
(Source) |
- |
| tPET-PD6 |
Yes |
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tET-C4 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
- |
4-ch
(NPN, Sink) |
| tPET-C4 |
Yes |
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tET-A4 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
- |
4-ch
(PNP, Source) |
| tPET-A4 |
Yes |
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tET-P2C2 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
2-ch (Sink/Source) |
2-ch
(NPN, Sink) |
| tPET-P2C2 |
Yes |
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tET-P2A2 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
2-ch
(Sink/Source) |
2-ch
(PNP, Source) |
| tPET-P2A2 |
Yes |
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tET-P2POR2 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
2-ch (Sink/Source) |
2-ch Form A PhotoMos Relay |
| tPET-P2POR2 |
Yes |
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tET-PD2POR2 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
2-ch
(Source) |
2-ch Form A
PhotoMos Relay |
| tPET-PD2POR2 |
Yes |
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tET-P2R2 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
2-ch (Sink/Source) |
2-ch Form A Relay |
| tPET-P2R2 |
Yes |
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tET-PD2R1 |
Yes |
- |
Ethernet
10/100 M |
Modbus TCP |
Yes |
2-ch
(Source) |
1-ch Form A Relay |
| tPET-PD2R1 |
Yes |
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