Analog Input
EL3204
Run LED1
Error LED1
Run LED3
Error LED3
+R1
-R3
-R1
+R3
Run LED2
Error LED2
Run LED4
Error LED4
+R2
-R2
+R4
-R4
Power contact 0 V
Power contact
+24 V
+24 V
Top view
Contact assembly
Connection
2-wire
+R
-R
+R
-R
EL3204 | 4-channel input terminal PT100 (RTD)
The EL3204 analog input terminal allows resistance sensors to be connected directly. The EtherCAT Terminal circuit can operate sensors using the 2-wire technique. A microprocessor handles linearisation across the whole temperature range, which is freely selectable. The EtherCAT Terminal’s standard settings are: resolution 0.1 °C in the temperature range of PT100 sensors. Sensor malfunctions such as broken wires are indicated by error LEDs.
| Technical data | EL3204 | ES3204 |
|---|---|
| Number of inputs | 4 |
| Power supply | via the E-bus |
| Sensor types | PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000 resistance measurement 0…1/4 kΩ (e.g. for potentiometer) |
| Connection method | 2-wire |
| Temperature range | -250…+850 °C (PT sensors); -60…+250 °C (Ni sensors) |
| Resolution | 0.1 °C per digit |
| Conversion time | approx. 800 ms up to 2 ms, depending on configuration and filter setting, see documentation, default: approx. 85 ms |
| Measuring current | typ. 0.5 mA |
| Measuring error | < ±0.5 °C for PT sensors (further types see documentation) |
| Electrical isolation | 500 Vrms (E-bus/signal voltage) |
| Current consumption E-bus | 190 mA (see documentation) |
| Bit width in the process image | 4 x 32 bit RTD input |
| Weight | approx. 60 g |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27/29 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos. | IP 20/variable |
| Pluggable wiring | for all ESxxxx terminals |
Product announcement |
EL3204: available ES3204: estimated market release 4th quarter 2008 |