WAGO 750-404 Manual page 22

22 • 750-404 [Up/Down Counter /100 kHz]
Examples
Up counting:
Attention
For counting up, 24 V must be applied to input U/D.
6. Wait for the first and further count pulses.
Remark
no count pulse
received
1st count pulse
received
2nd count pulse
received
Further count pulses
Max. counter reading
reached
the next count pulse
causes a number
overflow
One further count
pulse received
During counting, the data bytes D0 to D3 of the input data appear as
follows:
Data bytes
D3 D2
0x00 0x00
0x00 0x00
0x00 0x00
........ ........
0xFF 0xFF
0x00 0x00
0x00 0x00
D1 D0
0x00 0x64
0x00 0x65
0x00 0x66
........ ........
0xFF 0xFF
0x00 0x00
0x00 0x01
WAGO-I/O-SYSTEM 750
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