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11
2-2
Data Section
Each ASCII Unit is assigned four memory words called the Data Section for
communication with the PC. The words are assigned from addresses 100 to
199 of the PC IR memory area. How this information is used will be under-
stood better after you read the BASIC Language and Programming Exam-
ples sections of this manual.
See the following tables for detailed information on the location, breakdown,
and purpose of each bit of the Data Section:
SYSMAC C200H, C200HS, C200HX/HG/HE
Transferred to each Unit every
time the I/O data is refreshed.
ASCII Unit
Refresh timing
Words n to n+2
OUT refresh
Word n+3
IN refresh
4 words are used (n: 100 + 10 + unit no.)
IR Area
Word 100 to 103 Unit 0
Word 110 to 113 Unit 1
Word 120 to 123 Unit 2
Word 130 to 133 Unit 3
word 140 to 143 Unit 4
Word 150 to 153 Unit 5
Word 160 to 163 Unit 6
Word 170 to 173 Unit 7
Word 180 to 183 Unit 8
Word 190 to 193 Unit 9
Data Section
Section 2-2
Summary of Contents for SYSMAC C200H-ASC02
Page 1: ...Cat No W165 E1 04 ASCII Unit SYSMAC C200H ASC02 ...
Page 2: ...C200H ASC02 ASCII Unit Operation Manual Revised September 2002 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 7: ...TABLE OF CONTENTS viii Glossary 159 Index 163 Revision History 165 ...
Page 122: ...Appendix B Specifications 115 130 35 100 5 ...
Page 168: ...Cat No W165 E1 04 C200H ASC02 ASCII Unit OPERATION MANUAL ...