2
0
2
1
-0
5
32
Operation and communication
5.1.2.3
Position/Lane
You can use the following table to draw conclusions on the current section in the reading win-
dow based on the feedback from the read head regarding Data Matrix tag
TAG
, No X Position
NP
, absolute X position
XP
and the Y position and angle
YPS/ANG
.
Meaning of Bits
5.1.3
Direction Decision Request Telegram
Response Telegram for Direction Decision
Meaning of Bits
TAG NP
XP
YPS/ANG Meaning
0
0
+
1
1. Valid data present
+
Data Matrix lane available.
0
1
-
-
No evaluable objects exist.
1
0
+
+
Position on the basis of a Data Matrix tag, X position is signed.
Table 5.9
Meaning of bits
Note
If direction decisions are made via the protocol, then subindex 12 "Input Source Selection"
must be switched to Software in the global primary data.
Byte/
bit
Bit 8
Bit 7 Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Function
Byte 1 Parity
1
1
1
0
LL
RL
A1
A0
Request
Byte 2 Parity
0
0
0
1
~LL
~RL
~A1
~A0
Checksum
Bit 8 Bit 7 Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 1
Parity 0
CC2
A1
A0
CC1
WRN
NP
ERR
Byte 2
Parity 0
0
0
0
0
0
LL
RL
Byte 3
Parity 0
XOR
B1.6
...
B2.6
XOR
B1.5
...
B2.5
XOR
B1.4
...
B2.4
XOR
B1.3
...
B2.3
XOR
B1.2
...
B2.2
XOR
B1.1
...
B2.1
XOR
B1.0
...
B2.0
LL
RL
Meaning
0
0
Error code 5
0
1
Follow right-hand lane
1
0
Follow left-hand lane
1
1
Straight ahead
Table 5.10
Example
Request telegram when read head address = 0