Pattern Link - Honeywell DCP551 Mark ΙΙ User Manual

Chapter 5. FUNCTIONS

Pattern link

5-22
The pattern link function links patterns; the program number of the link at the destina-
tion is set in the pattern link item. An initial value of 0 indicates that linking is not per-
formed.
When the number of the program is set in the pattern link item, it forms an eternal loop.
When SP at the end of the original link and SP at the destination are not equal, SP
changes in step-like manner.
When cycle operation has been set, the pattern link operates after the cycle operation has
been completed.
Since operation starts from the first segment at the destination during pattern linking,
executed values of program items (sequels to settings in the previous segment) that con-
tinue from a previous segment are cleared before program restart.
When a PV start has been programmed in a pattern at the destination link, the PV start
function operates after the link has been made.
PID computations are not initialized but continued after a link has been established.
When the READY mode is invoked at the end of an operation or in a RESET operation,
operation returns to program number 1 that is switched from READY to RUN mode
(RUN to READY). If a RESET is performed when a program at the pattern link destina-
tion is reached during an ADV operation in the READY mode, operation returns to seg-
ment 1 of the link destination program number. Note, however, that program numbers
selected using the external switch takes priority.
Linking program No. 1 and program No. 2
SP
Program No.1
SP
Program No.2
SP
Program No.1
Time
Time
Program No.2
Time