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406
Analog I/O Units
Section 7-4
Writing the Range Code
Write the range code to word n+1. A/D or D/A conversion begins when the
range code is transferred from the CPU Unit to the Analog I/O Unit. There are
eight range codes, FF00 to FF07, that combine both the analog input 1 and 2
and analog output signal ranges, as shown below.
• The voltage/current selection is made by switching the wiring.
• Write the range code to the Analog I/O Unit output word (n + 1) in the first
cycle of program execution.
• The Analog I/O Unit will not start converting analog I/O values until the
range code has been written.
• Once the range code has been set, it is not possible to change the setting
while power is being supplied to the CPU Unit. To change the I/O range,
turn the CPU Unit OFF then ON again.
• If a range code other than those specified in the above table is written to
n+1, the range code will not be received by the Analog I/O Unit and ana-
log I/O conversion will not start.
Range
code
Analog input 1 signal
range
Analog input 2 signal
range
Analog output signal
range
FF00
0 to 10 V
0 to 10 V
0 to 10 V/4 to 20 mA
FF01
0 to 10 V
0 to 10 V
−
10 to 10 V/4 to 20 mA
FF02
1 to 5 V/4 to 20 mA
0 to 10 V
0 to 10 V/4 to 20 mA
FF03
1 to 5 V/4 to 20 mA
0 to 10 V
−
10 to 10 V/4 to 20 mA
FF04
0 to 10 V
1 to 5 V/4 to 20 mA
0 to 10 V/4 to 20 mA
FF05
0 to 10 V
1 to 5 V/4 to 20 mA
−
10 to 10 V/4 to 20 mA
FF06
1 to 5 V/4 to 20 mA
1 to 5 V/4 to 20 mA
0 to 10 V/4 to 20 mA
FF07
1 to 5 V/4 to 20 mA
1 to 5 V/4 to 20 mA
−
10 to 10 V/4 to 20 mA
Analog I/O Unit
(m + 1)
(m + 2)
32 analog inputs
16 analog outputs
(n + 1)
"m" is the last allocated input word and
"n" the last allocated output word on
the CPU Unit or previous Expansion
Unit or Expansion I/O Unit.
MOV(021)
FF02
(n+1)
A200.11
First Cycle Flag
Range code (4 digits hexadecimal)
Analog input 1: 1 to 5 V or 4 to 20 mA
Analog input 2: 0 to 10 V
Analog output: 0 to 10 V or 4 to 20 mA
Allocated output word
Содержание CP1H-CPU - 05-2006
Страница 1: ...OPERATION MANUAL CP1H CPU Unit SYSMAC CP Series CP1H X40D CP1H XA40D CP1H Y20DT D Cat No W450 E1 02...
Страница 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Страница 3: ...iv...
Страница 11: ...xii TABLE OF CONTENTS...
Страница 15: ...xvi...
Страница 19: ...xx...
Страница 31: ...xxxii Conformance to EC Directives 6...
Страница 71: ...40 Function Blocks Section 1 5...
Страница 133: ...102 Computing the Cycle Time Section 2 7...
Страница 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Страница 411: ...380 Clock Section 6 8...
Страница 519: ...488 Replacing User serviceable Parts Section 10 2...
Страница 527: ...496 Standard Models Appendix A...
Страница 535: ...504 Dimensions Diagrams Appendix B...
Страница 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Страница 659: ...628 PLC Setup Appendix G...
Страница 665: ...634 Index work words 159 write protection 370...
Страница 667: ...636 Revision History...