Description
The ET-7204/PET-7204 is a multi-function module with 4-channel analog inputs, 4-channel analog outputs, 4-channel digital inputs. 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 individually configurable for 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.
Features
- 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
- I/O Pair Connection
-
Built-in I/O
- AI: 4 Channels
- AO: 4 Channels
- DI/Counter: 4 Channels
Specifications
| Software | |
|---|---|
| Built-in Web Server | Yes |
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| 2-way Isolation |
Ethernet: 1500 VDC I/O: 2500 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±2 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | Run, Ethernet, I/O |
| Analog Input | |
|---|---|
| Channels | 4 (Differential) |
| Type |
Voltage Current |
| Range |
±500 mV, ±1 V, ±5 V, ±10 V 0 to 20 mA, ±20 mA, 4 to 20 mA (Jumper Selectable) |
| Resolution | 16-bit |
| Accuracy |
Normal Mode: ±0.1% Fast Mode: ±0.5% or better |
| Sampling Rate |
Normal Mode: 10 Hz (total channels) Fast Mode: 50 Hz (total channels) |
| Input Impedance |
Voltage: 2 MΩ Current: 125 Ω |
| Common Mode Rejection | 86 dB (min.) |
| Normal Mode Rejection | 100 dB |
| Common Voltage Protection | ±200 VDC |
| Overvoltage Protection | 240 Vrms |
| Overcurrent Protection | 50 mA at 110 VDC (max.) |
| Individual Channel Configuration | Yes |
| Open Wire Detection | For 4 to 20 mA only |
| Zero Drift | ±20 μV/°C |
| Span Drift | ±25 ppm/°C |
| Isolation | ±400 VDC, Virtual Channel to Channel Isolation |
| Analog Output | |
|---|---|
| Channels | 4 |