Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE - Manual (Page 4)

Preface P–2
Publication 1771-6.5.126 – March 1998
The following terms are specific to this product or commonly used:
Term: Definition:
BTR Block-transfer Read
BTW Block-transfer Write
Command Block
(MCC) Downloaded from the PLC data table to the QI module to
initiate or change machine operation. It must accompany every
configuration or profile block transferred to the QI module.
Configuration Blocks Data blocks containing machine-specific setpoints.
Profile Blocks Data blocks with setpoints used to control profiles.
Status Blocks Module status returned by the QI module to the PLC data table.
Direct Acting
and
Reverse Acting Valves An analog control valve that delivers increasing velocity or
pressure with increasing signal input. A reverse acting valve
delivers increasing velocity or pressure with decreasing signal.
FF Feed Forward
in.(mm)/s inches (millimeters) per second
PID Proportional-Integral-Derivative
Profile A group of mold/part setpoints which define a given machine
operation to the QI module
RFU Reserved for future use
Selected and
Unselected Valves When executing a profile in a multi-valve system, the QI
module controls one valve and presets the remaining valves.
We call the valve being controlled by the QI module’s
algorithms the selected valve, and the valves that are preset
with an open loop percentage setpoint the unselected valves.
Unselected Valves When executing a profile in a multi-valve system, the QI
module controls one valve and presets the remaining valves.
SWTL Software travel limit
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