Rockwell Automation GMLC Reference Manual - Manual (Page 777)

Publication GMLC-5.2 - November 1999
740 Using the RIO Adapter Option
Sending or Getting Data Parameter Values
Individual data parameter values for any of the motion controller axes can
be sent to or taken from the motion controller using a block transfer. To
send or get multiple data parameter values, multiple block transfers (one
for each value) must be used. The parameter number of the data
parameter to be transferred must be put in word 1 of the BTW data file for
the transfer.
• Put the parameter number from the table (just the number, not the D)
of the parameter to be transferred in word 1 of the BTW data file for
the transfer.
• Put 01 for the number of sequential parameter values to be transferred
in the low byte of word 2 of the BTW data file for the transfer.
Refer to the Data Parameters table in Appendix A of this manual to
determine the appropriate parameter number. In all cases, block transfers
affect only the working data parameter values.
Note: An axis must always be specified, even for data parameters that
are not axis-specific.
Data parameter values sent to the motion controller must always be within
the range implied by the value format for the parameter shown in the Data
Parameters table for the Control Setting block in Appendix A of this
manual or unpredictable operation results. In addition, always specify the
same number of decimal digits for the transfer as shown to the right of the
decimal point in the table.
!
ATTENTION: Do not send out-of-range data parameter
values to the motion controller.