11 PROCESS CONTROL INSTRUCTIONS
11.4 Correction Operation Instructions
1367
11
■
Block memory
■
Operation constant
Processing details
This instruction converts the input value (E1) to the % value and outputs it.
The S.IENG instruction performs the following operations.
Set the engineering value upper limit (RH) and lower limit (RL) so that RH is greater than RL.
Even when RH equals or less than RL, processing is executed accordingly but does not result in engineering value inverse
transformation.
When RH equals RL, the output value (BW) becomes 0.
Operation error
Operand: (d1)
Device
Symbol
Name
Recommended range
Data type
Standard
value
Set by
+0
+1
BW
Output value
-999999 to 999999 [%]
Single-precision
real number
System
Operand: (s2)
Device
Symbol
Name
Recommended range
Data type
Standard
value
Set by
+0
+1
RH
Engineering
value upper limit
-999999 to 999999
Single-precision
real number
100.0
User
+2
+3
RL
Engineering
value lower limit
-999999 to 999999
Single-precision
real number
0.0
User
Error code
Error content
3400H
An invalid operation (such as division by zero) is performed.
3402H
The value specified by (s1) or (s2) is a subnormal number or NaN (not a number).
3403H
An overflow has occurred.
BW
[%]
t
100
80
25
0
t
20
16
5
0
20
(RH)
0
(RL)
IENG
E1
[m
3
/h]
BW=
×(E1-RL) [%]
RH-RL
100
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: ......