Rockwell Automation GMLC Reference Manual - Manual (Page 473)

Publication GMLC-5.2 - November 1999
436 Miscellaneous Blocks
Remote Controller Address
Select the address of the desired slave motion controller from the menu.
Addresses are set using the rotary Address switch on the front panel of the
motion controller. See the Setup section of the Installation and Setup
manual for your motion controller for more information on configuring
slave motion controllers for multidrop operation.
Expression to Query
Enter the desired slave user variable, status variable, fault variable, or
expression in the Expression to Query field. The user variable definitions
in the slave motion controller are not known to the master, therefore use
the Indirect_variable function to query a user variable.
GML Commander sends the entered expression to a slave motion
controller for evaluation, so do not include in the Expression to Query any
user variables, constants, or I/O. These items were defined for use only
within the master motion controller GML Commander diagram, and may
be meaningless to the slave motion controller.
Although you request a single variable value most frequently, you can
also use an expression composed entirely of constants, slave motion
controller user variables, status variables, and fault variables.
Response Format
Type the desired format for the slave motion controller’s response in the
Response Format field using the # character as a placeholder to denote
significant digits. Use a decimal point (.) as required if fractional
information is expected. When querying positive or negative signed
variables, place a + character at the beginning of the response format.
Without the + character, only the magnitude of the value is returned.