48 Commissioning
WAGO-I/O-SYSTEM 750 XTR
750-404/040-003 Counter Adjust XTR
Manual
Version 1.1.0
2.
Accept the change with bit 4 in the control byte (request watchdog time
change):
Control Byte
Output Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
0
X
*)
X
*)
1
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
After the counter reports back in the status byte bit 4 (watchdog time change
accepted), the counter works with the new watchdog time:
Status Byte
Input Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
X
*)
X
*)
X
*)
1
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
3.
Reset bit 4 in the control byte:
Control Byte
Output Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
0
X
*)
X
*)
0
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
The counter confirms the reset in status byte bit 4:
Status Byte
Input Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
X
*)
X
*)
X
*)
0
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
7.2.2
Up/Down Counter
To set the up/down counter, proceed as follows:
1.
First set the counter to the decimal value 100 (hexadecimal 0x64) via "Set
counter," by setting the counter value in the output data:
Data Bytes
Output Data
D3
D2
D1
D0
Value
0x00
0x00
0x00
0x64
2.
Report the counter value as valid in the control byte with bit 5 (set counter),
so that it is applied as the output value:
Control Byte
Output Bit
B7
W 6
W 5
W 4 W 3 W 2 W 1
B0
Value
0
X
*)
1
X
*)
X
*)
X
*)
X
*)
X
*)
*)
Value has no relevance at this position.
