PET-7226
PoE Ethernet I/O Module with 2-port Ethernet Switch, with 6-ch Analog Input (Current Input), 2-ch Analog Output (Current Output), 2-ch Digital Input (32-bit Counter), 2-ch Digital Output. Support for both Modbus TCP and Modbus UDP Protocols. Built-in Web Server. Wide Operating Temperature Range: -25°C ~ +75°C (-13°F ~ +167°F)
Features
The PET-7226 is a multi-function module with 6-channel analog inputs, 2-channel analog outputs, 2-channel digital inputs and 2-channel digital outputs. It provides various programmable analog inputs (+/-500 mV, +/-1 V, +/-5 V, +/-10 V, +/-20 mA, 0 ~ 20 mA and 4 ~ 20 mA), and analog outputs (+/-5 V, +/-10 V, 0 ~ 20 mA and 4 ~ 20 mA). Each analog input is allowed to configure a proper range with 240 Vrms high voltage protection. Each analog input/output can be programmed to accept current or voltage as input/output depending upon the position of corresponding jumper.
- Built-in Web Server
- Web HMI
- Support for both Modbus TCP and Modbus UDP Protocols
- Communication Security
- 2-port Ethernet Switch for Daisy-Chain Topology
- Dual Watchdog
- Wide Operating Temperature Range: -25 ~ +75°C
- I/O Pair Connection
- Built-in I/O
- AI: 6 Channels with 240 Vrms Overvoltage Protection
- AO: 2 Channels
- DI/Counter: 2 Channels
- DO: 2 Channels
Applications
Building Automation, Factory Automation, Machine Automation, Remote Maintenance, Remote Diagnosis, Testing Equipment.
Daisy-Chain Ethernet Cabling
The ET-7200/PET-7200 Series has a built-in two-port Ethernet switch to implement daisy-chain topology. The cabling is much easier and total costs of cable and switch are significantly reduced.
LAN Bypass
LAN Bypass feature guarantees the Ethernet communication. It will automatically active to continue the network traffic when the ET-7200/PET-7200 looses its power.
Communication Security
Account and password are needed when logging into the web server. An IP address filter is also included, which can be used to allow or deny connections with specific IP addresses.
Support for both Modbus TCP and Modbus UDP Protocols
The Modbus TCP, Modbus UDP slave function on the Ethernet port can be used to provide data to remote SCADA software.
Built-in I/O
Various I/O components are mixed with multiple channels in a single I/O module, which provides the most cost effective I/O usage and enhances performance of the I/O operations.
Dual Watchdog
The Dual Watchdog is consists of a Module Watchdog and a Communication Watchdog. The action of AO,DO are also associated to the Dual Watchdog.
Module Watchdog is a built-in hardware circuit to monitor the operation of the module and will reset the CPU if a failure occurs in the hardware or the software. Then the Power-on Value of AO,DO will be loaded.
Communication Watchdog is a software function to monitor the communication between the host and the I/O module. The timeout of the communication Watchdog is proprgrammable, when the I/O doesn't receive commands from the host for a while, the watchdog forces the AO,DO to pre-programmed Safe Value to prevent unpredicatable damage of the connected devices.
Highly Reliable Under Harsh Environment
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I/O Pair ConnectionThis function is used to create a AI/DI to AO/DO pair through the Ethernet. Once the configuration is completed, the I/O module can poll the status of remote AI/DI devices and then use the Modbus TCP protocol to continuously write to a local AO/DO channels in the background. |
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Power-on Value and Safe Value
Besides setting by the set AO,DO commands, the AO,DO can be set under two other conditions.
Power-on Value: The Power-on Value is loaded into the AO,DO under 3 conditions: Power-on, reset by Module Watchdog, reset by reset command.
Safe Value: When the Communication Watchdog is enabled and a Communication Watchdog timeout occurs, the “safe value” is loaded into the AO,DO.
Specifications
| Software | |
| Built-In Web Server | Yes |
| Web HMI | Yes |
| I/O Pair Connection | Yes |
| Communication | |
| Ethernet Port | 2 x RJ-45, 10/100 Base-TX, Swtich Ports |
| PoE | Yes |
| Protocol | Modbus/TCP, Modbus/UDP |
| Security | ID, Password and IP Filter |
| Dual Watchdog | Yes, Module (0.8 second), Communication (Programmable) |
| LED Indicators | |
| for System Running | Yes |
| for Ethernet Link/Act | Yes |
| for DI/DO status | Yes |
| for PoE Power | - |
| 2-Way Isolation | |
| Ethernet | 1500 VDC |
| I/O | - |
| EMS Protection | |
| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal and ±8 kV Air for Random Point |
| EFT (IEC 61000-4-4) | ±2 kV for Power Line |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| Power Requirements | |
| Reverse Polarity Protection | Yes |
| Powered from Terminal Block | 12 ~ 48 VDC |
| Powered from PoE | Yes, IEEE 802.3af, Class1 |
| Consumption | 5.2 W |
| Mechanical | |
| Dimensions (W x L x H) | 76 mm x 120 mm x 38 mm |
| Installation | DIN-Rail or Wall mounting |
| Environmental | |
| Operating Temperature | -25 ~ +75°C |
| Storage Temperature | -30 ~ +80°C |
| Humidity | 10 ~ 90% RH, Non-condensing |
I/O Specifications
| Analog Input | ||
| Channels | 6 (Differential) | |
| Type | +/-500 mV, +/-1V, +/-5 V, +/-10 V +0 mA ~ +20 mA, +/-20 mA, 4 ~ 20 mA (Jumper Selectable) |
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| Individual Channel Configuration | Yes | |
| Resolution | 16-bit | |
| Sampling Rate | Normal Mode | 10 Samples/Second (Total) |
| Fast Mode | 50 Samples/Second (Total) | |
| Accuracy | Normal Mode | +/-0.1% |
| Fast Mode | +/-0.5% or better | |
| Zero Drift | +/-20 μV/°C | |
| Span Drift | +/-25 ppm/°C | |
| Overvoltage Protection | 240 Vrms | |
| Overcurrent Protection | 50 mA Max. at 110 VDC/VAC Max. | |
| Common Voltage Protection | ±200 VDC | |
| Overcurrent Protection | Yes, 50 mA at 110 VDC | |
| Virtual Channel to Channel Isolation | Yes, 400 VDC | |
| Open Wire Detection for 4 ~ 20 mA | Yes | |
| Input Impedance | Voltage | 2 MΩ |
| Current | 125 Ω | |
| Common Mode Rejection | 86 dB Min. | |
| Normal Mode Rejection | 100 dB | |
| Open Wire Detection | Yes, for 4 ~ 20 mA only | |
| Virtual Channel to Channel Isolation | +/-400 VDC | |
| Analog Output | ||
| Channels | 2 | |
| Type | +0 VDC ~ +5 VDC, +/-5 VDC, +0 VDC ~ +10 VDC, +/-10 VDC,+0 mA ~ +20 mA, +4 mA ~ +20 mA (Jumper Selectable) |
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| Individual Channel Configuration | Yes | |
| Resolution | 12-bit | |
| Accuracy | +/-0.1% of FSR | |
| Voltage Output Capabil | 20 mA @ 10 V | |
| Current Load Resistance | 500 Ω | |
| Open Wire Detect | Yes, for 4 ~ 20 mA only | |
| Virtual Channel to Channel Isolation | +/-400 VDC | |
| Power-on Value | Yes, Programmable | |
| Safe Value | Yes, Programmable | |
| Digital Input/Counter | ||
| Channels | 2 | |
| Dry Contact (Source) |
On Voltage Level | Close to GND |
| Off Voltage Level | Open | |
| Effective Distance for Dry Contact |
500 M Max. | |
| Wet contact (Sink Source) |
On Voltage Level | +1 VDC Max. |
| Off Voltage Level | +3.5 VDC ~ +30 VDC | |
| Input Impedance | - | |
| Counters | Channels | 2 |
| Max. Count | 4,294,967,285 (32-bit) | |
| Max. Input Frequency | 100 Hz | |
| Min. Pulse Width | 5 ms | |
| Overvoltage Protection | 30 VDC | |
| Digital Output | ||
| Channels | 2 | |
| Type | Isolated Open Collector | |
| Sink/Source (NPN/PNP) | Sink | |
| Max. Load Current | 700 mA/Channel | |
| Load Voltage | +5 VDC ~ +50 VDC | |
| Overvoltage Protection | 60 VDC | |
| Overload Protection | 1.4 A | |
| Short-circuit Protection | Yes | |
| Power-on Value | Yes, Programmable | |
| Safe Value | Yes, Programmable | |
References and Support
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PoE Ethernet I,O Mod...
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