WAGO-I/O-SYSTEM 750 XTR
Device Description 17
750-404/040-003 Counter Adjust XTR
Manual
Version 1.1.0
3.3.4
Frequency Counter 0.1 Hz – 100 kHz
In this operating mode, the I/O module is used to measure frequency.
The I/O module with counter function measures the 24 V signal pulse period at
the input “CLOCK” and converts it to a frequency value. Measurement is enabled
when the input “U/D” is open or 0 V is present.
Measurement at input “U/D” is disabled when 24 V are present.
The maximum time between two data updates can be set according to the
frequency and desired accuracy.
3.3.5
Up/Down Counter / Signaling Outputs (DO)
In this operating mode, the I/O module processes count pulses at the input
“CLOCK.” The counting takes place edge-controlled; e.g., the counter status is
incremented or decremented when the CLOCK signal changes from 0 to 24 V.
When the input “U/D” is switched with +24 V, the counting direction is upward.
When the input is not switched or is 0 V, the counting direction is downward.
The control byte sets or resets the counter.
Digital outputs “DO 1” and “DO 2” can be activated based on the counter status
or via the control byte.
3.3.6
2 Up Counter / 16 Bit / 5 kHz
In this operating mode, the I/O module is allocated with two 16-bit up counters.
The count pulses are detected at inputs “CLOCK” and “U/D.”
The counting takes place edge-controlled; e.g., the counter status is incremented
when the CLOCK signal changes from 0 to 24 V.
