Rockwell Automation GMLC Reference Manual - Manual (Page 651)

Publication GMLC-5.2 - November 1999
614 System Functions
The Miscellaneous Input function is evaluated as 1 (true) if the input is
ON and 0 (false) if it is OFF. The Miscellaneous Input function reads the
current physical state (ON/OFF) of the input.
Axis Input
Use the Axis_input function to include the state of the motion
controller’s axis specific, dedicated, discrete inputs in an expression.
After selecting Axis_input in the Expression Builder’s Tag Window, be
sure to select the desired Axis in the pop-up menu.
Syntax:
Axis_input[input number]
Insert a value or expression equal to the desired input number from the
table below for the argument.
Important: Do not attempt to use an argument your motion controller
does not support. A runtime fault results.
Input
Number
Description
0 Home Input
1 Positive Overtravel Input
2 Negative Overtravel Input
3 Drive Fault Input
4 Registration Input
5 Encoder Loss State (1394 and Compact only)
6 Marker State
7 CXIC Interrupt State
8 Resolver Loss Event (1394 only)
9 Resolver Loss State (1394 only)