Sa, %Sb, And %Sc References - GE VersaMax PLC User Manual

Reference
%S0017
%S0018
%S0019
%S0020
%S0021
%S0022
%S0023-32
%SA0003
%SA0004-8
%SA0009
%SA0010
%SA0011
%SA0012,13
%SA0014
%SA0015
%SA0016-18
%SA0019
%SA0020
%SA0021-26
%SA0027
%SA0028-30
%SA0031
118 GFK-1503E
For public disclosure
Name
SNP-X host is actively attached to CPU port 1. (Port 2 defaults to
SNPXACT
disabled, and must be activated with a CRQ).
SNPX_RD SNP-X host has read data from CPU port 1.
SNPX_WT SNP-X host has written data to CPU port 1.
Set ON when a relational function using REAL data executes
successfully. It is cleared when either input is NaN (Not a Number).
FF_OVR Set to report a Fatal Fault Overide.
Set to reflect the state of the CPU mode switch.
USR_SW 1 = Run/On
0 = Stop/Off
reserved

9.3.3 %SA, %SB, and %SC References

References in %SA, %SB, and %SC memory can be both read and written to.
Set when an application fault occurs. Cleared when the PLC transitions
APL_FLT
from STOP to RUN mode.
reserved
Set when a configuration mismatch is detected during power-up or a
CFG_MM
configuration store. Cleared by powering up the PLC after correcting
the condition.
Set when the diagnostics detects a problem with the CPU hardware.
HRD_CPU
Cleared by replacing the CPU module.
Set when a low battery fault occurs. Cleared by replacing the battery
LOW_BAT
then powering up the PLC.
reserved
Set when an I/O module stops communicating with the CPU. Cleared
LOS_IOM
by replacing the module and cycling system power.
Set when an option module stops communicating with the CPU.
LOS_SIO
Cleared by replacing the module and cycling power on the main rack.
reserved
Set when an I/O module is added. Cleared by cycling PLC power and
ADD_IOM
when the configuration matches the hardware after a store.
Set when an option module is added. Cleared by cycling PLC power
ADD_SIO
and when the configuration matches the hardware after a store.
reserved
Set when a hardware failure is detected in an option module. Cleared
HRD_SIO
by replacing the module and cycling PLC power.
reserved
Set when an unrecoverable software fault is detected in an option
SFT_SIO
module. Cleared by cycling PLC power and when the configuration
matches the hardware.
Definition
VersaMax PLC User Manual