87
CPU Unit Operation
Section 2-4
Immediate Refreshing
When the immediate refreshing variation of an instruction is specified and the
instruction’s operand is an input bit or word in the Built-in I/O Area, the word
containing the bit or the word itself will be refreshed.
Note
(1) Immediate refreshing is possible only for the Built-in I/O Area. Use
IORF(097) for I/O on CP-series Expansion Units and Expansion I/O
Units.
(2) Refreshing Range
• Bit Operands
The ON/OFF status of the 16 I/O points allocated to the word contain-
ing the specified bit will be refreshed.
• Word Operands
The ON/OFF status of the 16 I/O points allocated to the specified word
will be refreshed.
(3) Refresh Timing
• Input or source operands are read just before the instruction is execut-
ed.
• Output or destination (results) operands are written just after the in-
struction is executed.
(4) Using instructions with the immediate refresh option, instruction execu-
tion time will be increased, increasing the overall cycle time. Be sure to
confirm that this will not adversely affect system operation.
IORF(097) Refreshing
When IORF(097) (I/O REFRESH) is executed, the I/O bits in the specified
range of words are refreshed. IORF(097) can be used for CP-Series Expan-
sion Units, CP-series Expansion I/O Units, and CJ-series Special I/O Units.
If high-speed response is required from input to output, execute IORF(097)
before and after the relevant instructions.
Note
IORF(097) has a relatively long execution time which increases with the num-
ber of words being refreshed. Be sure to consider the affect of this time on the
overall cycle time. Refer to the
CP Series CP1H Programmable Controllers
Programming Manual
for instruction execution times.
15
0
!LD
0.00
0
15
!OUT
100.00
0
15
!MOV
1
101
11
7
11
7
Immediate refresh
CIO 0
CIO 101
CIO 1
CIO 100
IORF
St
E
IORF
2
5
Example
St
: Starting word
E
: End word
All the words from St to E, inclusive
are refreshed.
Here, the four words from CIO 2
to CIO 5 are refreshed.
Содержание Sysmac CP1H
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Страница 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised October 2014...
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Страница 34: ...xxxiv Conformance to EC Directives 6...
Страница 76: ...42 Function Blocks Section 1 5...
Страница 176: ...142 CP series Expansion I O Unit Wiring Section 3 6...
Страница 372: ...338 Analog I O XA CPU Units Section 5 5...
Страница 578: ...544 Trouble Shooting Section 8 7...
Страница 622: ...588 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Страница 668: ...634 Standard Models Appendix A...
Страница 669: ...635 Appendix B Dimensions Diagrams X XA and Y CPU Units 90 100 110 140 150 8 85 Four 4 5 dia holes...
Страница 744: ...710 Auxiliary Area Allocations by Address Appendix D...
Страница 771: ...737 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 772: ...738 Connections to Serial Communications Option Boards Appendix F...
Страница 800: ...766 Specifications for External Power Supply Expansion Appendix H...
Страница 806: ...772 Index W Work Area 165 work bits 165 work words 165 write protection 379...
Страница 808: ...774 Revision History...
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