Rockwell Automation 1746-HSRV SLC Servo Control Module User Manual - Manual (Page 156)

Publication 1746-6.1.2 - July 2000
Programming System Variables 9-13
Word 1 Discrete Bit Status Specifications
1 s = Slot number for the SLC Servo Module
Bit Specifications
Location
1 Description
Axis Ready I:s.1/0 Bit 0 signals that the motion control has powered up successfully. Other I/O
bits are not valid unless this bit is set.
Estop State I:s.1/1 This bit is set when the SLC Servo Module is in Estop. The bit is cleared
when the operator or SLC Ladder Logic has performed an Estop reset.
Information Message I:s.1/2 This bit, if uninhibited, is set when the SLC Servo Module has an
informational message to be conveyed to the SLC processor. The bit is
cleared using either the Clear Fault or Clear All Faults bit.
Minor Fault I:s.1/3 This bit, if uninhibited, is set when a minor fault is detected by the SLC
Servo Module. The bit is cleared using either the Clear Fault or Clear All
Faults bit.
Major Fault I:s.1/4 This bit, if uninhibited, is set when a major fault is detected by the SLC
Servo Module. The bit is cleared using either the Clear Fault or Clear All
Faults bit.
Fault FIFO Full I:s.1/5 This bit is set when the 16 element fault FIFO resident in the SLC Servo
Module is full of faults. This could occur when faults get reported, but not
cleared. Faults can be cleared using either the Clear Fault or Clear All Faults
bit.
Reserved I:s.1/6 through I:s.1/7
Axis Needs Homed I:s.1/8 This bit is set until the axis is homed after power-up and any time a
feedback fault is detected by the SLC Servo Module.
Homing I:s.1/9 This bit is set when the axis is being homed.
Retract Position I:s.1/10 This bit is set when a Retract Position operation is in progress.
At Home I:s.1/11 This bit is set when the actual position is within the home tolerance of the
home position.
It is not set if the actual position crosses the home position during the
homing sequence. This could happen if the axis has already been homed
since power-up.
Overtravel – I:s.1/12 This bit is set when the axis has attempted to move beyond the negative
overtravel limit.
Overtravel + I:s.1/13 This bit is set when the axis has attempted to move beyond the positive
overtravel limit.
Configuration Failed I:s.1/14 This bit is set when the blend move profile or axis configuration information
just received by the SLC Servo Module using the M0 file transfer mechanism
contained errors. This bit is cleared while the SLC Servo Module verifies
whether the M file content demonstrates inter-parameter compatibility and
if the configuration process was successful.
Configuration Successful I:s.1/15 This bit is set when the blend move profile or axis configuration information
just received by the SLC Servo Module using the M0 file transfer mechanism
is free of errors. This bit is cleared while the SLC Servo Module verifies
whether or not the M-file content demonstrates inter-parameter
compatibility and if the configuration process failed. This bit is set after a
successful power-up of the SLC Servo Module.