750-404/000-001 [Up Counter / Enable Input] • 31
Example
WAGO-I/O-SYSTEM 750
I/O Modules
Up counting:
Attention
For counting up, 24 V must be applied to input GATE.
13.Wait for the first and further count pulses.
During counting, the data bytes D0 to D3 of the input data appear as
follows:
Data bytes
Remark
D3
D2
D1
D0
no count pulse
received
0x00 0x00 0x00 0x64
1st count pulse
received
0x00 0x00 0x00 0x65
2nd count pulse
received
0x00 0x00 0x00 0x66
Further count pulses
........
........
........
........
Max. counter reading
reached
0xFF 0xFF 0xFF 0xFF
the next count pulse
causes a number
overflow
0x00 0x00 0x00 0x00
One further count
pulse received
0x00 0x00 0x00 0x01