FC6A S
ERIES
M
ICRO
S
MART
A
LL
-
IN
-O
NE
T
YPE
U
SER
’
S
M
ANUAL
FC9Y-B1722
5-53
5: F
UNCTIONS
AND
S
ETTINGS
Constant Scan Time
The scan time may vary whether basic and advanced instructions are executed or not depending on input conditions to these
instructions. The scan time can be made constant by entering a required scan time preset value into special data register D8022
reserved for constant scan time. When performing accurate repetitive control, make the scan time constant using this function.
The constant scan time preset value can be between 1 to 1,000 ms.
The scan time error is ±1 ms of the preset value normally. When the data link or other communication functions are used, the scan
time error may be increased to several milliseconds.
When the actual scan time is longer than the scan time preset value, the scan time cannot be reduced to the constant value.
Special Data Registers for Scan Time
In addition to D8022, three more special data registers are reserved to indicate current, maximum, and minimum scan time
values.
Note:
R/W is the abbreviation for read/write. When R/W, it can be read and written. When R, it can only be read. When W, it can only be written.
Example: Constant Scan Time
This example sets the scan time to a constant value of 500 ms.
D8022
Constant Scan Time Preset Value (1 to 1,000 ms)
D8023
Scan Time Current Value (ms)
D8024
Scan Time Maximum Value (ms)
D8025
Scan Time Minimum Value (ms)
M8120 is the initialize pulse special internal relay.
When the FC6A Series MicroSmart starts operation, the MOV (move) instruction stores
500 to special data register D8022.
The scan time is set to a constant value of 500 ms.
M8120
REP
D1
500
S2
D8022
MOV(W)
Содержание FC6A series
Страница 1: ...B 1722 2 FC6A SERIES All in One Type User s Manual ...
Страница 10: ...TABLE OF CONTENTS Preface 9 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 28: ...1 GENERAL INFORMATION 1 18 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 130: ...2 PRODUCT SPECIFICATIONS 2 102 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 170: ...3 INSTALLATION AND WIRING 3 40 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 286: ...6 DEVICES 6 32 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 334: ...7 HMI FUNCTION 7 48 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 340: ...8 INSTRUCTIONS REFERENCE 8 6 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 360: ...9 FUNCTIONAL MODULES 9 20 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 368: ...10 ANALOG CARTRIDGE 10 8 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 426: ...12 EXPANSION MODULE AND CARTRIDGE SETTINGS 12 10 FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 ...
Страница 463: ...FC6A SERIES MICROSMART ALL IN ONE TYPE USER S MANUAL FC9Y B1722 A 13 APPENDIX ASCII Character Code Table ...