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Series 90–70 Remote I/O Scanner User’s Manual – July 1992120

Status References

Status references in the Remote I/O Scanner are assigned to %S, %SA, %SB, and %SC

memory. These references have the same definitions as the status references for the

Series 90–70 PLC, although not all are meaningful for a Remote I/O Scanner. They can

be monitored using the reference tables function of Logicmaster 90 with the

programmer communicating with the remote drop.

Reference Nickname Definition

%S0001 FST_SCN Current sweep is the first sweep.
%S0003 T_10MS 0.01 second timer contact.
%S0004 T_100MS 0.1 second timer contact.
%S0005 T_SEC 1.0 second timer contact.
%S0006 T_MIN 1.0 minute timer contact.
%S0007 ALW_ON Always ON.
%S0008 ALW_OFF Always OFF.
%S0009 SY_FULL Set when the Remote I/O Scanner’s PLC Fault T able fills up. Cleared when an entry is re-
moved from the PLC Fault Table and when the PLC Fault Table is cleared.
%S0010 IO_FULL Set when the Remote I/O Scanner’s I/O Fault Table fills up. Cleared when an entry is re-
moved from the I/O Fault Table and when the I/O Fault Table is cleared.
%S0011 OVR_PRE Set when an override exists in %I or memory.
%SA0009 CFG_MM Set when a configuration mismatch is detected during power–up or during a store of the
configuration. Cleared by powering up the Remote I/O Scanner when no mismatches are
present or during a store of configuration that matches hardware.
%SA0010 HRD_CPU Set when the diagnostics detects a problem with the Remote I/O Scanner hardware. Cleared
by replacing the Remote I/O Scanner.
%SA0012 LOS_RCK Set when an expansion rack in the remote drop stops communicating with the communicat-
ing with the Remote I/O Scanner. Cleared by fixing the problem and power cycling the rack.
%SA0014 LOS_IOM Set when an I/O module stops Remote I/O Scanner. Cleared by replacing the module and
cycling power on the rack containing the module.
%SA0015 LOS_SIO Set when an option module stops communicating with the Remote I/O Scanner. Cleared by
replacing the module and cycling power on the rack containing the module.
%SA0017 ADD_RCK Set when an expansion rack is added to the remote drop. Cleared by cycling power on the
rack containing the module and when the con figuration matches the hardware after a store.
%SA0019 ADD_IOM Set when an I/O module is added to a rack. Cleared by cycling power on the rack containing
the module and when the configuration matches the hardware after a store.
%SA0020 ADD_SIO Set when an option module is added to a rack. Cleared by cycling power on the rack contain-
ing the module and when the configuration matches the hardware after a store.
%SA0023 IOM_FLT Set when an I/O module reports a circuit or module fault. Cleared by cycling power on the
rack containing the module and when the config uration matches the hardware after a store.
%SA0027 HRD_SIO Set when a hardware failure is detected in an option module. Cleared by replacing the mod-
ule and cycling power on the rack containing the module.
%SA0032 SBUS_ER Set when a bus error occurs on the VME bus backplane. Cleared by cycling power on rack 0.
%SB0010 BAD_RAM Set when the Remote I/O Scanner detects corrupted RAM memory at power–up. Cleared
when the Remote I/O Scanner detects that RAM memory is valid at power–up.
%SB0013 SFT_CPU Set when the Remote I/O Scanner detects an unrecoverable error in the software. Cleared by
cycling power to the Remote I/O Scanner.
%SB0014 STOR_ER Set when an error occurs during a programmer store operation. Cleared when a store opera-
tion is completed successfully.
%SB0017 SBUS_FL Set when the Remote I/O Scanner fails to gain access to the bus. Cleared by cycling power on
the rack 0.
%SC0009 ANY_FLT Set when any fault occurs. Cleared when both fault tables have no entries.
%SC0010 SY_FLT Set when any fault occurs that causes an entry to be placed in the Remote I/O Scanner’s PLC
Fault Table. Cleared when the PLC Fault Table has no entries.
%SC0011 IO_FLT Set when any fault occurs that causes an entry to be placed in the Remote I/O Scanner’s I/O
Fault Table. Cleared when the I/O Fault T able has no entries.
%SC0012 SY_PRES Set as long as there is at least one entry in the Remote I/O Scanner’s PLC fault table. Cleared
when the PLC fault table has no entries.
%SC0013 IO_PRES Set as long as there is at least one entry in the Remote I/O Scanner’s I/O fault table. Cleared
when the I/O fault table has no entries.
%SC0014 HRD_FLT Set when a hardware fault occurs. Cleared when both fault tables have no entries.
%SC0015 SFT_FLT Set when a software fault occurs. Cleared when both fault tables have no entries