PET-7215
PoE Ethernet I/O Analog Input Module with 2-port Ethernet Switch, with 7-ch RTD Inputs. Supports Modbus TCP and Modbus UDP Protocol. Built-in Web Server. Has operating temperatures of -25°C ~ +75°C (-13°F ~ +167°F)
References & Support
Features
The PET-7215 is specifically designed for long-distance RTD measurement. It features automatic compensation for three-wire RTD regardless of the length of wires and provides open wire detection for RTD measurement. The ET-7215 offers 7 channels, each of which could be connected with different kinds of RTD (Pt100, Pt1000, Ni120, Cu100, Cu1000). Also, The ET-7215 is fully RoHS-compliant and has qualification for 4 kV ESD protection as well as 2500 VDC intra-module isolation.
- 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
- RTD Input: 7 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 over DCON |
| LED Indicators | |
| L1 (System Running) | Yes |
| L2 (Ethernet Link/Act) | Yes |
| DI/DO Status | - |
| PoE Power | Yes |
| 2 Way Isolation | |
| Ethernet | - |
| I/O | 3000 VDC |
| 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 | Yes, 12 ~ 48 VDC |
| Powered from PoE | Yes, IEEE 802.3af, Class1 |
| Consumption | 3.2 W (Max.) |
| 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°C ~ +75°C (-13°F ~ +167°F) |
| Storage Temperature | -30°C ~ +80°C (-22°F ~ +176°F) |
| Humidity | 10 ~ 90% RH, non-condensing |
I/O Specifications
| Analog Input | ||
| Channels | 7 (Differential) | |
| Sensor Type | Pt100, Pt1000, Ni120, Cu100, Cu1000 | |
| Wire Connection | 2/3 wire | |
| Individual Channel Configuration | Yes | |
| Resolution | 16-bit | |
| Sampling Rate | 12 Samples/Second (Total) | |
| Accuracy | +/-0.05% | |
| Zero Drift | +/-20 μV/°C | |
| Span Drift | 110 VDC/VAC | |
| Overvoltage Protection | 150 dB | |
| Common Mode Rejection | 100 dB | |
| Normal Mode Rejection | >1M Ω | |
| Overvoltage Protection | 120 VDC | |
| Resistance Measurement | 3.2 KΩ Max. | |
References and Support
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PET-7002
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