Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE - Manual (Page 72)

2–40 Command Word/Bit Descriptions
Publication 1771-6.5.126 – March 1998
Notes: For [ ] engineering units, see page 2.
Bit-mapped Control Words
Word Bit Description
PSC01 Block ID = 00010000 (Low byte). High byte reserved for the module. Do not use.
PSC02 - 04 RFU
Movement Length
Word Description
PSC05 Incremental Movement Length [17] When the module starts the Post-decompression Movement, it adds this entry to the sum of
cushion size (PPC61) + shot size (PPC62) to establish the End of Post-decompression ram (screw) position. The module uses End
of Post-decompression position as termination point of all Post-decompression Movements.
PSC06 - 07 RFU
Watchdog Timer
Word Description
PSC08 Movement Watchdog Timer Preset [21] When the module starts the Post-decompression Movement, it:
S starts an internal Movement Watchdog timer
S stops timer and resets accumulated value to zero (after reporting total execution time in PPS58) when it completes the movement
S sets master status bit SYS04-B09 when the accumulated value of this timer equals or exceeds this entry.
A zero entry inhibits SYS04-B09.
Movement Set-output Values
When the module starts the Post-decompression Movement, it:
•
uses ramp rates PRC17-20 and PRC25-28 to ramp outputs
•
sets its outputs to the values listed below
Word Description
PSC09 Output #1 Set-output Value during Movement [19]
PSC10 Output #2 Set-output Value during Movement [19]
PSC11 Output #3 Set-output Value during Movement [19]
PSC12 Output #4 Set-output Value during Movement [19]
PSC13-16 RFU
Output Ramp Rates
The module uses the following ramp rates when moving its outputs
between setpoints during Post-decompression Movement. The module
interprets a ramp rate of zero as a step function ramp (ramp disable).
Word Description
PSC17 Output #1 Acceleration Ramp Rate during Movement [20]
PSC18 Output #2 Acceleration Ramp Rate during Movement [20]
PSC19 Output #3 Acceleration Ramp Rate during Movement [20]
PSC20 Output #4 Acceleration Ramp Rate during Movement [20]
PSC21-24 RFU
PSC25 Output #1 Deceleration Ramp Rate during Movement [20]
PSC26 Output #2 Deceleration Ramp Rate during Movement [20]
PSC27 Output #3 Deceleration Ramp Rate during Movement [20]
PSC28 Output #4 Deceleration Ramp Rate during Movement [20]
PSC29-32 RFU
PSC – Post-decompression
Configuration Block