Manual BG41/BG42/BG43 Software
Rev. 99/49 4-37
ANZW
Display word. The display word contains one word. Status bits are filed in the
right byte. An error number is filed in the left byte, if the idenfication “finished
with an error“ appears in the right byte.
The status identifiers in the right byte are structured as follows:
Bit 0: Not used
Bit 1: Job running
Bit 2: Finished without an error
Bit 3: Finished with an error, → Error number in the left byte
Bit 4: Interface momentarily occupied
Bit 5-7:Not used
The data handling block hands over at the loading of the interface building block
only enough bytes, as were parametrized as block size on the data handling block
SYNCHRON.
For these reasons the data handling block SEND may have to be loaded several
times, in order to transmit a complete telegram to the interface building block. If
the data handling block has one or more data blocks, but has not yet transmitted
the last data block to the interface building block, bit 1 is placed in the right byte
of the display word as identifier for “job running.“
If all data blocks have correctly been received by the interface building block and
the receiver does not report an error, the data handling block SEND places the Bit
2 in the right byte of the display word as identifier for “finished without an error.“
If the telegram from the interface building block has not been received, e.g.
receiver does not answer, or when the receiver reports an error, the data handling
block SEND places the bit 3 in the right byte of the display word as identifier for
“finished with an error.“ In this case an error number is in the left byte of the
display word.
Error code, delivered by ANZW:
05 Telegram header contains invalid target type
09 Receiver does not answer with DLE
14 Wrong telegram header (the first 2 bytes)
15 Transmission terminated by receiver
16 Wrong command code 2. letter (invalid target area)
20 DB error (DB0 used, DB too long, DB not available)
21 Receiver does not answer within QVZ (Timeout on SSM building block)
22 Wrong command code 1. letter (invalid source area)
23 QVZ in connection set-up
50 Coordination flag set
52 Data length greater than 128 bytes
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