Installation manual

Publication 1747-RM001G-EN-P - November 2008
SLC Status File B-23
S:5/4 Dynamic
Config
M0-M1 Referenced on Disabled Slot Bit
This bit is set whenever any instruction references an M0 or
M1 module file element for a slot that is disabled (via its I/O
slot enable bit). When set, the bit indicates that an instruction
could not execute properly due to the unavailability of the
addressed M0 or M1 data.
If this bit is ever set upon execution of the END, TND, or REF
instruction, major error (0020) is declared. To avoid this type of
major error from occurring, examine the state of this bit
following a M0-M1 referenced instruction, take appropriate
action, and then clear bit S:5/4 using an OTU instruction with
S:5/4 or a CLR instruction with S:5.
••••
S:5/5 to
S:5/7
NA Reserved
Reserved for minor errors that revert to major errors at the end
of the scan.
•••••
S:5/8 Status Memory Module Boot Bit
When this bit is set by the processor, it indicates that a
memory module program has been transferred to the
processor. This bit is not cleared by the processor.
Your program can examine the state of this bit on entry into the
REM Run mode to determine if the memory module content
has been transferred. Bit S:1/15 will be set to indicate REM
Run mode entry. This information is useful when you have an
application that contains retentive data and a memory module
that has only bit S:1/10 set (Load Memory Module on Memory
error). Use this bit to indicate that retentive data has been lost.
This bit is also helpful when using bits S:1/11 (Load Memory
Module Always) or S:1/12 (Load Memory Module Always and
Run) to distinguish a power up REM Run mode entry from a
REM Program (or REM Test) mode to REM Run mode entry.
•••••
S:5/9 Status Memory Module Password Mismatch Bit
This bit is set on REM Run mode entry, whenever loading from
the memory module is specified (word 1, bits 11 or 12) and the
processor user program is password protected, and the
memory module program does not match that password.
Use this bit to inform your application program that an
autoloading memory module is installed but did not load due to
a password mismatch.
•••••
S:5/10 Status STI (Selectable Timed Interrupt) Overflow Bit
This bit is set whenever the STI timer expires while the STI
routine is either executing or disabled and the pending bit is
already set.
••••
Table B.2 Status File Functions (Continued)
Address Classification Description Fixed
5/01
5/02 5/03 5/04 5/05