GE GFK0579B User Manual

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.

%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 Table 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 Table 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