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Process Image
WAGO-I/O-SYSTEM 750
750-633 Up/Down Counter Ex i
Manual
Version 1.3.0 HW-Version 03, SW-Version 01
Status Byte S0
Input bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value
X
X
1
X
X
X
X
X
4.
Clear bit 5 (set counter) in the control byte to complete the handshake.
Control Byte C0
Output bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value
0
X
0
X
X
X
X
X
5.
The set counter value then appears in the input data with the following
databases D0 to D3.
Data Bytes
Input data
D3
D2
D1
D0
Value
0x00
0x00
0x00
0x64
Count up:
6.
Wait for the first counting pulse and for others.
Data Bytes
Input data
D3
D2
D1
D0
No counting pulse
received
0x00
0x00
0x00
0x64
1st counting pulse
received
0x00
0x00
0x00
0x65
2nd counting
pulse received
0x00
0x00
0x00
0x66
More counting
pulses
...
...
...
...
Maximum counter
value reached
0xFF
0xFF
0xFF
0xFF
Another counting
pulse results in a
count overflow
0x00
0x00
0x00
0x00
Another counting
pulse received
0x00
0x00
0x00
0x01