1272
11 PROCESS CONTROL INSTRUCTIONS
11.3 Control Operation Instructions
■
Loop tag past value memory
The system uses this area as a work area.
To start the control from the initial status, clear data by using a sequence program.
The loop tag past value memory occupies 32 words after the loop tag memory.
■
Set value
The set value (E2) is valid only when b0 of the set value pattern (SVPTN) is set to 0 (Used). To use the upper loop MV as the
set value (E2), specify the device (12) where the manipulated value (MV) of the upper loop is set.
If E2 is not used, specify a dummy device (SD820).
■
Execution cycle (
T)
Set the execution cycle (
T) in SD816 and SD817 in single-precision real number.
Operand: (d2)
Position
Symbol
Name
Recommended range
Data type
Standard
value
Set by
+96
Control cycle
counter
initialization
completion flag
System
+97
Control cycle
counter (The
value is rounded
off to the nearest
whole number.)
+98
+99
Operand: (s3)
Position
Symbol
Name
Recommended range
Data type
Standard
value
Set by
+0
+1
E2
Set value
-10 to 110 [%]
Single-precision
real number
0.0
User
×ΣDV
I
T
I
CT
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......