Incremental encoder mode
In incremental encoder mode, the CX7293 can be configured as an interface for direct connection of 24 V incremental encoders. A quadruple evaluation is used and both high level and low level are detected at input 1 and input 2.
The range of functions in encoder mode corresponds to the range of functions in counter mode. In addition, the counter value at input 3 can be latched, i.e. the value is entered in the process data on a high level at input 3. Alternatively, the counter can be reset on a high level at input 3.
In addition, output 1 can be switched depending on the counter value. Output 2 can be switched from the PLC. This allows fast control signals for field devices to be used and switched.
Technical data | CX7293 |
|---|---|
Technology | Incremental encoder interface |
Nominal voltage | 24 V DC (-15 %/+20 %) |
Specification | EN 61131-2, type 3 |
Encoder connection | 1 x A, B: 24 V, single-ended |
Additional inputs | Latch input, 24 V DC |
Cut-off frequency | 250,000 increments/s (with 4-fold evaluation), corresponds to 62.5 kHz |
Counter depth | 32-bit |
Quadrature decoder | 4-fold evaluation |
Max. output current | 24 V/0.5 A (short-circuit proof) |
Special features | Latch function, software gate, set counter, switch outputs, reset counters |
Connection cross-section | e*: 0.08…1.5 mm², |
Connection cross section AWG | e*: AWG 28…16, |
Strip length | 8 … 9 mm |
*e: single-wire, solid wire; f: stranded wire; a: with ferrule