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131
I/O Area and I/O Allocations
Section 4-2
The upper bits (bits 12 to 15) not used in the input words cannot be used as
work bits. Only the bits not used in the output words can be used as work bits.
4-2-2
I/O Bits Allocated to Expansion I/O Units
There are Expansion I/O Units for expanding inputs, for expanding outputs,
and for expanding both input and outputs. I/O bits starting from bit 00 in the
next word after the word allocated to the previous Expansion Unit, Expansion
I/O Unit, or CPU Unit are automatically allocated. This word is indicated as
“CIO m” for input words and as “CIO n” for output words.
■
I/O Bit Addresses
Units 8 Input Points (CP1W-8ED/CPM1A-8ED)
Eight input bits are allocated in one word (bits 00 to 07 in CIO m).
Only one word (8 bits) is allocated to an 8-input Expansion Input Unit. No out-
put words are allocated. Input bits 08 to 15 are always cleared by the system
and cannot be used as work bits.
Units with 8 Output Points (CP1W-8E
@@
/CPM1A-8E
@@
)
Eight output bits are allocated in one word (bits 00 to 07 in CIO n+1).
Only one word (8 bits) is allocated to an 8-output Expansion Output Unit. No
input words are allocated. Output bits 08 to 15 can be used as work bits.
Unit
Input bits
Output bits
No. of
bits
No. of
words
Addresses
No. of
bits
No. of
words
Addresses
Unit with 8 inputs
CP1W-8ED
CPM1A-8ED
8 bits
1 word
CIO m (bits 00 to 07)
---
None
None
Unit with
8 outputs
Relays
CP1W-8ER
CPM1A-8ER
---
None
None
8 bits
1 word
CIO n (bits 00 to 07)
Sinking
transistors
CP1W-8ET
CPM1A-8ET
---
None
None
8 bits
1 word
CIO n (bits 00 to 07)
Sourcing
transistors
CP1W-8ET1
CPM1A-8ET1
---
None
None
8 bits
1 word
CIO n (bits 00 to 07)
Unit with 16 relay out-
puts
CP1W-16ER
CPM1A-16ER
---
None
None
16 bits 2 words CIO n (bits 00 to 07)
CIO n+1 (bits 00 to 07)
Unit with
20 I/O
Relays
CP1W-20EDR1
CPM1A-20EDR1
12 bits 1 word
CIO m (bits 00 to 11)
8 bits
1 word
CIO n (bits 00 to 07)
Sinking
transistors
CP1W-20EDT
CPM1A-20EDT
12 bits 1 word
CIO m (bits 00 to 11)
8 bits
1 word
CIO n (bits 00 to 07)
Sourcing
transistors
CP1W-20EDT1
CPM1A-20EDT1
12 bits 1 word
CIO m (bits 00 to 11)
8 bits
1 word
CIO n (bits 00 to 07)
Unit with
40 I/O
Relays
CP1W-40EDR
CPM1A-40EDR
24 bits 2 words CIO m (bits 00 to 11)
CIO m+1 (bits 00 to 11)
16 bits 2 words CIO n (bits 00 to 07)
CIO n+1 (bits 00 to 07)
Sinking
transistors
CP1W-40EDT
CPM1A-40EDT
24 bits 2 words CIO m (bits 00 to 11)
CIO m+1 (bits 00 to 11)
16 bits 2 words CIO n (bits 00 to 07)
CIO n+1 (bits 00 to 07)
Sourcing
transistors
CP1W-40EDT1
CPM1A-40EDT1
24 bits 2 words CIO m (bits 00 to 11)
CIO m+1 (bits 00 to 11)
16 bits 2 words CIO n (bits 00 to 07)
CIO n+1 (bits 00 to 07)
15 14 13 12
11 10 09
08 07
06
05
04 03 02 01 00
m
Do not use.
Inputs
15 14 13 12
11 10 09 08 07
06
05
04 03 02 01 00
n
Can be used as work bits.
Outputs
Содержание CP1L-L14D Series
Страница 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Страница 523: ...490 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...498 Replacing User serviceable Parts Section 10 2...
Страница 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...636 Index...
Страница 671: ...638 Revision History...