Technical Data of the Digital \ OutputsΒΆ
| Parameter | Value | |
|---|---|---|
| Number of channels per module | 32 outputs (with transistors) | |
| Distribution of the channels into groups | 1 group of 32 channels | |
| Connection of the channels | ||
| O0 to O7 | Terminals 1.0 to 1.7 | |
| O8 to O15 | Terminals 2.0 to 2.7 | |
| O16 to O23 | Terminals 3.0 to 3.7 | |
| O24 to O31 | Terminals 4.0 to 4.7 | |
| Indication of the output signals | 1 yellow LED per channel, the LED is ON if the output signal is high (signal 1) | |
| Reference potential for all outputs | Terminals 1.9, 2.9, 3.9 and 4.9 (negative pole of the process supply voltage, signal name ZP) | |
| Common power supply voltage | For all outputs: terminals 1.8, 2.8, 3.8 and 4.8 (positive pole of the process supply voltage, signal name UP) | |
| Output voltage for signal 1 | UP (-0.8 V) | |
| Output delay (0 -> 1 or 1 -> 0) | On request | |
| Output data length | 4 bytes | |
| Output current | ||
| Rated value, per channel | 500 mA at UP = 24 V | |
| Maximum value (channels O0 to O15) | 4 A | |
| Maximum value (channels O16 to O31) | 4 A | |
| Maximum value (all channels together) | 8 A | |
| Max. leakage current with signal 0 | < 0.5 mA | |
| Rated protection fuse on UP | 10 A fast | |
| Demagnetization when inductive loads are switched off | With varistors integrated in the module (see figure below) | |
| Switching frequency | ||
| With resistive load | On request | |
| With inductive loads | Max. 0.5 Hz | |
| With lamp loads | Max. 11 Hz with max. 5 W | |
| Short-circuit proof / overload proof | Yes | |
| Overload message (I > 0.7 A) | Yes, after ca. 100 ms | |
| Output current limitation | Yes, automatic reactivation after short-circuit/overload | |
| Resistance to feedback against 24 V signals | Yes | |
| Max. cable length | ||
| Shielded | 1000 m | |
| Unshielded | 600 m | |
The following drawing shows the circuitry of a digital output with the varistors for demagnetization when inductive loads are switched off.