Rockwell Automation GMLC Reference Manual - Manual (Page 436)

Publication GMLC-5.2 - November 1999
Interrupt SLC 399
Program Status
Program status indicates the SLC is in the mode for creating, or
programming, a ladder logic program in the SLC. When the SLC is in
Program mode, it cannot be in Run mode or Fault mode.
Run Status
Run status indicates the SLC is executing, or running, a previously
programmed SLC ladder logic program. When the SLC is in Run mode, it
cannot be in Program mode or Fault mode.
Fault Status
Fault status indicates that another module connected to the same
backplane as the local 1394 system module (i.e., the SLC or another 1394
system module) has lost power. Refer to your SLC documentation for a
description of these faults, and how to handle them.
If SLC Status
Like the Wait for SLC Status type block, use an If SLC Status type block
to check for an SLC fault.
The If SLC Status type branches program flow, depending upon whether a
selected SLC status is true or false. The If SLC Status type constantly
checks the status of the SLC. Program flow branches to the true node (at
the top of the block) if the current SLC status matches the status you
specified in the block, and to the false node (at the bottom of the block) if
not.
Interrupt SLC
If you enabled SLC in the General page of the Configure Control Options
dialog box, you can use the Interrupt SLC block to generate a user
interrupt to the SLC. A 1394 motion controller is required for SLC
operation.