1260
11 PROCESS CONTROL INSTRUCTIONS
11.3 Control Operation Instructions
Note that special processing is performed in the following cases.
■
Deviation check (5)
A deviation is checked under the following conditions, and the result is output to the DVLA of the alarm detection (ALM) and
the large deviation alarm (BB1).
*1 If the DMLI or ERRI of the disable alarm detection (INH) is set to 1, the DVLA of the alarm detection (ALM) and the large deviation alarm
(BB1) are set to 0.
■
Loop stop processing (6)
The following processing is performed according to the SPA status of the alarm detection (ALM).
■
Operating time monitoring (7)
The instruction checks whether ST or HT (= STHT - ST) is applicable and performs the following processing.
Condition
Processing
In any of the following cases:
1. Integral constant (I) = 0 (T
I
= 0)
2. MHA2 or MLA2 of alarm detection 2 (ALM2) is 1.
and
3. MHA2 or MLA2 of alarm detection 2 (ALM2) is 1.
and
Condition
Result
DVL < |DV|
DVLA = BB1 = 1
(DVL - DVLS) < |DV|
DVL
DVLA = BB1 = Last value status hold
|DV|
(DVL - DVLS)
DVLA = BB1 = 0
SPA status
Processing details
1
The loop stops. When the loop stops, the following operations are performed and the S.SPI instruction ends.
• The output value (BW) is set to 0.
• The DVLA of alarm detection (ALM) is set to 0.
• The control mode (MODE) is set to MAN.
• BB1 of BB is set to 0.
0
The loop runs and "operating time/hold time determination (7)" is performed.
Condition
Processing details
Operating time (ST)
The instruction performs the following processing steps: SV setting, tracking, gain (Kp) operation, PI operation
(operating time), and deviation check.
Hold time (HT) (= STHT - ST)
The instruction performs the following processing steps: tracking, SPI operation (hold time), and deviation
check.
Under the following conditions, however, PI control is performed continuously with the hold time set to 0.
If the integral part of the left side of the above expression is 0, no processing is performed. (BW also remains
unchanged.)
MVP>MH
×DV
n
>0
T
I
BT
MVP<ML
×DV
n
<0
T
I
BT
×DV
n
=
0
T
I
BT
©
T
©
T
STHT
ST
<=
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Страница 2: ......
Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Страница 34: ...32 MEMO ...
Страница 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Страница 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Страница 204: ...202 5 SEQUENCE INSTRUCTIONS 5 3 Output Instructions Operation error There is no operation error ...
Страница 470: ...468 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 472: ...470 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 479: ...6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions 477 6 Operation error There is no operation error ...
Страница 504: ...502 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 518: ...516 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 520: ...518 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 754: ...752 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 756: ...754 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 758: ...756 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 760: ...758 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 895: ...7 APPLICATION INSTRUCTIONS 7 16 Ramp Signal Instruction 893 7 Operation error There is no operation error ...
Страница 917: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 915 7 Operation error There is no operation error ...
Страница 919: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 917 7 Operation error There is no operation error ...
Страница 1415: ...13 SFC PROGRAM INSTRUCTIONS 13 1 SFC Control Instructions 1413 13 Operation error There is no operation error ...
Страница 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Страница 1795: ...25 TYPE CONVERSION FUNCTIONS 25 1 Converting BOOL to WORD 1793 25 Operation error There is no operation error ...
Страница 1805: ...25 TYPE CONVERSION FUNCTIONS 25 10 Converting WORD to DINT 1803 25 Operation error There is no operation error ...
Страница 1819: ...25 TYPE CONVERSION FUNCTIONS 25 21 Converting INT to DWORD 1817 25 Operation error There is no operation error ...
Страница 1950: ...1948 32 STRING FUNCTIONS 32 2 Extracting String Data From the Left Right Operation error There is no operation error ...
Страница 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Страница 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Страница 2082: ...2080 APPX Appendix 6 Process Control Program Examples 129 Set the default value of the loop tag ...
Страница 2093: ...APPX Appendix 7 List of Loop Tag Memory Areas Used by Process Control Instructions 2091 A MEMO ...
Страница 2109: ......