Siemens OP5 Equipment Manual page 141

Message Cause
$ 500 Download to PLC not possible at
$ 501 present
$ 502
– PLC overloaded
$ 503
– Standard FB not called for
$ 504
more than 1.5 sec
$ 506 Too many message blocks having
the same block number in transit
(overloading)
$ 507 Data transfer was not acknowledged
by the PLC within a certain time.
$ 509 Firmware version different from
standard FB version.
$ 510 DB for variable in recipe does not
exist.
Incorrect recipe data
$ 511 Data record number in PLC job or
function key invalid
$ 520 Too many returns stored
$ 522 Screen cannot be selected due to in-
adequate storage space.
Results in cold restart with memory
optimization
$ 526 Loop-through mode is set on OP
$ 527 An access to the floppy disk station
was triggered (via operator input or
job) although last access is still be-
ing performed.
$ 528 The specified recipe number does
not exist.
$ 529 The specified file name does not
exist.
$ 531 Because recipe configuration was
changed, DS is no longer compat-
ible and cannot be loaded.
Manual OP5, OP15
( ) J31069-D0840-U001-A2-7618
System Messages
Action
– Check PLC program
Error occurs when PLC sends too many jobs
within a certain time with "Fetch message bit
area"
DB check by user on PLC side must be
speeded up (< 10 sec).
Load new standard FB onto PLC
Set up DB or change configuration.
Set up new data record or specify another data
record in PLC job.
Go to message level
(if necessary, by pressing ESCAPE key)
1. Delete unused fields from configuration
2. Configure smaller screen (with fewer
fields) or partition screen
Change to Normal mode
B-7