Rockwell Automation SD3000 Drive Configuration, Programming - Manual (Page 21)

3.0
CONFIGURING THE UDC MODULE’S REGISTERS
ONLY QUALIFIED ELECTRICAL PERSONNEL FAMILIAR WITH THE CONSTRUCTION AND
OPERATION OF THIS EQUIPMENT AND THE HAZARDS INVOLVED SHOULD INSTALL, ADJUST,
OPERATE, OR SERVICE THIS EQUIPMENT. READ AND UNDERSTAND THIS MANUAL AND OTHER
APPLICABLE MANUALS IN THEIR ENTIRETY BEFORE PROCEEDING. FAILURE TO OBSERVE THIS
PRECAUTION COULD RESULT IN SEVERE BODILY INJURY OR LOSS OF LIFE.
W A R N I N G
ONLY QUALIFIED RELIANCE PERSONNEL OR OTHER TRAINED PERSONNEL WHO UNDERSTAND
THE POTENTIAL HAZARDS INVOLVED MAY MAKE MODIFICATIONS TO THE VARIABLE
CONFIGURATION. ANY MODIFICATIONS MAY RESULT IN UNCONTROLLED MACHINE
OPERATION. FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN DAMAGE TO
EQUIPMENT AND BODILY INJURY.
W A R N I N G
REGISTERS AND BITS IN THE UDC MODULE THAT ARE DESCRIBED AS “READ ONLY’ OR FOR
“SYSTEM USE ONLY” MUST NOT BE WRITTEN TO BY THE USER. WRITING TO THESE REGISTERS
AND BITS MAY RESULT IN IMPROPER SYSTEM OPERATION. FAILURE TO OBSERVE THIS
PRECAUTION COULD RESULT IN BODILY INJURY.
The Variable Configurator application in the AutoMax Programming Executive is used to assign
common variable names to the dual port memory registers on the UDC module. You can access
these variable names by declaring them using the BASIC statement COMMON. The dual port
memory has 2048 16-bit registers that are available to the AutoMax Processor and to the tasks that
run on the UDC module. The drive A and drive B registers that are assigned variable names will be
latched into internal memory at the beginning of every scan of the UDC task to provide for a
consistent context for evaluation. The UDC tasks (A and B) may be started and stopped
independently of each other. At the end of the scan, the variables that have changed will be written
back to the dual port memory. Note that the dual port memory on the UDC module is treated like I/O
data in terms of how the data is affected by Stop All commands and power cycling.
You can access the Variable Configurator by selecting Configure Variables from the Configure menu
in the Rack Configurator. Refer to the AutoMax Programming Executive instruction manual for the
procedures used to configure variables.
The sections that follow describe the registers you can configure in each view:
l The Rail I/O Port 0 and Port 1 views are used to configure the registers assigned to the
hardware that is attached to the PMI Rail ports. (These registers can also be accessed by
double-clicking the PMI view.)
l The Command Registers view is used to configure pre-defined drive control registers that are
written to either by an AutoMax application task or by a UDC application task and then sent to the
PMI.
l The Feedback Registers view is used to configure the feedback registers that display the current
status of the drive. These registers are written to by the PMI.
l The Application Registers Updated Every Scan view is used to configure the application
registers that are used for the passing of application-specific control and status data between an
AutoMax Processor and the UDC module on every scan. This register range is shared by drive A
and drive B.
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