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Commissioning and configuration
148
BCL 548
i
Leuze electronic
10.9
Result Format
In the following various modules for the output of decoding results are listed. They have the
same structure but different output lengths. The PROFINET-IO module concept does not
cater for modules of variable data length.
Notice!
Modules 20 … 27 are, thus, to be regarded as alternatives and should not be used in parallel.
Modules 30 … 41, on the other hand, can be combined freely with the decoding result mod-
ules.
10.9.1
Module 20 – Decoder state
PROFINET-IO module identifier
Module-ID 1020
Submodule-ID 1
Description
The module indicates the state of the decoding and of the automatic decoder configuration.
Parameter
None
Input data
Input data
Description
Addr.
Data type
Value range
Init value Unit
Reading gate state
The signal indicates the current state of
the reading gate
1)
.
1)
Attention
: This does not necessarily correspond to the state at the time the bar code is
scanned.
0.0
Bit
0: Off
1: On
0
-
New result
The signal indicates whether a new
decoding has occurred.
0.1
Bit
0: No
1: Yes
0
-
Result state
The signal indicates whether the bar
code has been read successfully.
0.2
Bit
0: Successful reading
1: NOREAD
0
-
Further results in the
buffer
The signal indicates whether further
results are in the buffer.
0.3
Bit
0: No
1: Yes
0
-
Buffer overflow
The signal indicates that result buffers
are occupied and the decoder rejects
data.
0.4
Bit
0: No
1: Yes
0
-
New decoding
Toggle bit indicates whether decoding
has occurred.
0.5
Bit
0->1:
New result
1->0:
New result
0
-
Result state
Toggle bit indicates that the bar code
has not been read.
0.6
Bit
0->1:
NOREAD
1->0:
NOREAD
0
-
Waiting for acknowl-
edgement
This signal represents the internal
state of the control.
0.7
Bit
0: Base state
1: Control waiting for
acknowledgement
from the
IO Controller
0
-
Table 10.15:
Input data for module 20