Description
The ET-7253 provides 16 dry contact digital input channels. Each input channel can be used as a 32-bit counter. It features optical isolation for 3750 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation. It can safely be used in applications where hazardous voltages are present.
| 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) |
±4 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for Each Terminal
±8 kV Air for Random Point |
| LED Indicators |
| Status |
Run, Ethernet, I/O |
| Digital Input/Counter |
| Channels |
16 |
| Type |
Dry Contact |
| Sink/Source (NPN/PNP) |
Source |
| ON Voltage Level |
Close to GND |
| OFF Voltage Level |
Open |
| Max. Counts |
4,294,967,295 (32-bit) |
| Frequency |
100 Hz |
| Min. Pulse Width |
5 ms |
| Effective Distance |
500m (max.) |
| Ethernet |
| Ports |
2 x RJ-45, 10/100 Base-TX, Swtich Ports |
| LAN bypass |
Yes |
| Access Control |
ID, Password and IP Filter |
| Protocol |
Modbus TCP, Modbus UDP |
| Power |
| Reverse Polarity Protection |
Yes |
| Consumption |
3.7 W (max.) |
| Powered from Terminal Block |
+12 ~ +48 VDC |
| Mechanical |
| Dimensions (mm) |
76 x 120 x 42 (W x L x H) |
| Installation |
DIN-Rail mounting |
| Environment |
| Operating Temperature |
-25 ~ +75 °C |
| Storage Temperature |
-30 ~ +80 °C |
| Humidity |
10 ~ 90% RH, Non-condensing |
