SBC PCD1 Series Manual page 71

Saia-Burgess Controls AG
Diagnostics on the flash card, SYSRD K 9000
Instruction:
Accu status after execution:
When using the instruction SYSRD K 9000, note the following:
● If errors occur during processing, e.g. because no flash card is plugged in, XOB 13
will be invoked (where present), or the Error LED will be set
Specification of diagnostic register
Bit Description
(if high)
0 (LSB) No flash card
1 Header not configured
2 No SYSWR access to
flash card
3 DB/text not present
4 DB/text format invalid
5 Restored
6 Memory full
7 Already in progress
8...31 Spare
Manual Manual PCD 1 / PCD 2 Series │ D ocument 26 / 737 EN22 │ 2 013-11-26
SYSRD K 9000
1)
R_Diag
1) Alternatively, the value 9000 can be passed in a register. On the PCD3, the instruction
SYSRD K 3000 is used for the same function. For reasons of compatibility, SYSRD
K 3000 can also be used on the PCD1/2, but this alternative was only integrated into the
firmware in the 2nd half of 2004
low: The flash card is ready, and SYSWR 900x instructions
can be executed
high: The Flash card is not available or not ready; the
diagnostic register must be retrieved and the process
retried later
; Diagnostics register
Cause
No application on the flash card
The corresponding option has not been
activated in the hardware configuration
(reserved for text/DB etc.)
last instruction, an incorrect DB/text
In the
number was used as a parameter
The length of the DB or the text has been
changed
Text/DB on the flash card has been restored,
as an error occurred
Too many texts/DBs, no more free memory
space available
The last SYSWR 900x instruction had not
yet been fully processed when the next was
started
CPUs and expansion housings
Backup of the user program
3
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