[DB600] General Instruction Manual
MODE 2
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5-4-4
Selecting the start method for program operation
You can select either SV start or PV start for the start point of operation. SV setting is available with PV
start selected.
With SV start selected, operation starts with a start SV and heads toward a target value regardless of
measured value (PV).
With PV start selected, a program is started with a current measured value (PV).
With PV start selected, when a point that matches a current PV is found within the program pattern range
at the start of program (RUN), the program will be started from the point.
If the SV that matches the PV cannot be found at the start of program, PV start will be disabled and the
operation will start with SV start.
When patterns are connected by pattern link, a search for SV that matches PV is conducted on the
operation start pattern only. It will not be conducted on a linked pattern.
Reference
When PV=SV point exists in operation
start pattern
When PV=SV point does not exist in
operation start pattern
5-4-5
Execution No. selection for program operation
8 parameters including PID, event, and output limiter can be set as a group parameter beforehand.
A program operation execution No. can be selected for each step of program pattern.
Group parameters can be registered in MODE3.
All of the MODE3 group parameter execution numbers from No. 1 to 8 have been set to general values by
default, therefore, control can be performed without setting these parameters.
5-4-6
Program pattern link (connection)
The pattern link function is used to connect multiple patterns to operate them as a single program pattern.
Since the maximum number of steps settable in a pattern is 12, this function is useful when you want to
add another step.
You can create an endless program by linking to the pattern that starts operation.
Reference
When a linked pattern is PV start
PV start is effective. A search for SV that matches PV is
performed. When the matched point is found, the program
is fast forwarded.
If PV does not exist within the pattern range, the program
is connected from SV.
5-4-7
Output at program end (output 1 and 2 at END)
Select whether to perform constant value control with the last SV or to output a fixed value at the end of a
program (END status).
The fixed value output will be limited by the setting of output limiter. The output limiter is set using the
MODE3 group parameter.
Pattern 1
Pattern 2
Pattern 1
Pattern 2
PV
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