WAGO-I/O-SYSTEM 750 XTR
Commissioning 49
750-404/040-003 Counter Adjust XTR
Manual
Version 1.1.0
3.
Wait for feedback from the counter in status byte bit 5 (counter set):
Status Byte
Input Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
X
*)
X
*)
1
X
*)
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
4.
Clear bit 5 (set counter) in the control byte to complete the handshake:
Control Byte
Output Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
0
X
*)
0
X
*)
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
The set counter value then appears in the input data with the following data bytes
D0 to D3:
Data Bytes
Input Data
D3
D2
D1
D0
Value
0x00
0x00
0x00
0x64
5.
For counting upward, wait for the first and additional count pulses:
Input “U/D” must be switched.
Note that input “U/D” must be switched to upward counting with +24 V.
Data Bytes
D3
D2
D1
D0
Explanation
0x00
0x00
0x00
0x64
No count pulse received.
0x00
0x00
0x00
0x65
1
st
count pulse
0x00
0x00
0x00
0x66
2
nd
count pulse
…
…
…
…
Additional count pulses
0xFF
0xFF
0xFF
0xFF
Maximum counter status
reached.
0x00
0x00
0x00
0x00
Another count pulse results in a
count overflow.
0x00
0x00
0x00
0x01
Another count pulse received.