Rockwell Automation 1771-QDC, D17716.5.85(Passport) MNL. PLASTIC MOLDING MODULE - Manual (Page 67)

Select Command and Status Bits
To Sequence Machine Operation
Chapter 6
6-3
Table 6.C
Status and Command Bit Interaction for Automatic Functions
For this
Profile/Movement
During execution
this bit in B34 is
At completion
this bit in B34 is
At completion, if this
command bit is This status bit is
SET RESET SET RESET also SET also SET
Injection SYS21ĆB04 SYS02ĆB04 SYS02ĆB04 SYS21ĆB04 --- ---
Pack SYS21ĆB05 SYS02ĆB05 SYS02ĆB05 SYS21ĆB05 --- ---
Hold SYS21ĆB06 SYS02ĆB06 SYS02ĆB06 SYS21ĆB06 HPC03ĆB08 SYS22ĆB06
PreĆdecompression SYS21ĆB07 SYS02ĆB07 SYS02ĆB07 SYS21ĆB07 HPC03ĆB09 SYS22ĆB07
Plastication SYS21ĆB08 SYS02ĆB08 SYS02ĆB08 SYS21ĆB08 PPC03ĆB08 SYS22ĆB08
PostĆdecompression SYS21ĆB09 SYS02ĆB09 SYS02ĆB09 SYS21ĆB09 --- SYS22ĆB09
Table 6.D
Command Bits To Interrupt Ram (screw) Movement Between Profiles
Bit Description QDC Block Address
0 = start preĆdecompression movement @ end of hold profile
1 = stop and set output @ end of hold profile
HPC03ĆB08
0 = start plastication profile @ end of preĆdecompression movement
1 = stop and set output @ end of preĆdecompression movement
HPC03ĆB09
0 = start postĆdecompression movement @ end of plastication profile
1 = stop and set output @ end of plastication profile
PPC03ĆB08
Table 6.E
Miscellaneous Status Bits To Trigger New Events in Inject Mode
Reason for Using Bit Description QDC Block Address
To drop pump adders, or shift solenoids before
starting pack/hold profile
Injection complete SYS02ĆB04
To inhibit clamp from opening in auto mode Cure timer timing SYS03ĆB03
To start clampĆopen phase Ram (screw) retracted, and
Cure time complete
SYS03ĆB04, and
SYS03ĆB05
To idle the machine and activate an alarm
because the hopper is running out of plastic
Watchdog for plastication phase SYS04ĆB08
To shift solenoids for preĆdecompression SetĆoutput in progress @ end of hold SYS22ĆB06
To shift solenoids for plastication SetĆoutput in progress @ end of preĆdecompression SYS22ĆB07
To shift solenoids for postĆdecompression SetĆoutput in progress @ end of plastication SYS22ĆB08
To idle the machine until starting next action SetĆoutput in progress @ end of
postĆdecompression
SYS22ĆB09