Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE - Manual (Page 35)

2–3 Command Word/Bit Descriptions
Publication 1771-6.5.126 – March 1998
Command Blocks for system level control are:
Block Description
MCC Module Configuration Command Block
JGC Jog Configuration Command Block
DYC Dynamic Command Block
You must establish the QI module’s I/O configuration before it can
decide which command blocks to support. Although the module always
accepts the Module Configuration Command Block (MCC), the module
considers all other command blocks unrecognizable until it has received,
processed, and successfully error checked an MCC download from the
host processor. After you configure the QI module with a valid MCC,
the module always accepts and processes (considers them recognizable)
either of the two basic command blocks JGC and DYC when received.
The module reports system status in the system status block (SYS). The
module can always return the System Status Block to the host processor.
It returns this block after each block transfer read (BTR) request from the
PLC processor unless the previous block transfer write (BTW) to the
module was a valid dynamic command block (DYC) containing a request
for some other status block.
The host processor can write any of these command blocks to the QI
module to control ram (screw) position:
Command
Block
Description
Corresponding
Status Block
INC Injection Configuration Block –
IPC Injection Profile Block IPS
PKC Pack Configuration Block –
HDC Hold Configuration Block –
HPC Pack/Hold Profile Block HPS
PRC Pre-decompression Configuration Block –
PLC Plastication Configuration Block –
PPC Plastication Profile Block PPS
PSC Post-decompression Configuration Block –
PTC Process Trace Configuration Block PTS
RLC Inject ERC Values Block RLS
After you configure the QI module with a valid MCC, the module
determines if it has access to ram (screw) position data from the ram
(screw) position sensor. The module considers these command
blocks recognizable and can return these status blocks when it has an
analog input reserved for a ram (screw) position sensor, and the
sensor is physically connected to input 1.
Data Blocks for System
Control
Data Blocks for
Controlling Ram (Screw)
Position