VIPA CPU 21 Series, Руководство пользователя

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Chapter 11 Integrated OBs SFBs SFCs Manual VIPA CPU 21x
11-36 HB103E - Rev. 05/45
Page frame communication - Indicator word ANZW
Status and error reports are created by the handling blocks:
•
by the indicator word ANZW (information at order commissioning),
•
by the parameter error byte PAFE (indication of a wrong order para-
meterization).
The "Indicator word" shows the status of a certain order on a CP.
In your PLC program you should keep one indicator word for each defined
order at hand.
The indicator word has the following structure:
Byte Bit 7 ... Bit 0
0 Bit 0 ... Bit 3: Error management CPU
0: no error
1...5: CPU-Error
6...15: CP-Error
Bit 4 ... Bit 7: reserved
1
State management CPU
Bit 0: Handshake convenient (data exists)
0: RECEIVE blocked
1: RECEIVE released
Bit 1: order commissioning is running
0: SEND/FETCH released
1: SEND/FETCH blocked
Bit 2: Order ready without errors
Bit 3: Order ready with errors
Data management handling block
Bit 4: Data receive/send is running
Bit 5: Data transmission active
Bit 6: Data fetch active
Bit 7: Disable/Enable data block
0: released
1: blocked
2 ... 3 Length word handling block
In the „length word“ the handling blocks (SEND, RECEIVE) store the data
that has already been transferred, i.e. received data in case of a RECEIVE
order, send data when there is a SEND order.
The announcement in the length word is always in byte and absolute.
Status and error
reports
Content and
structure of the
indicator word
ANZW
11x 21x 31x 51x
✓ ✓ ✓