556
Memory Allocation
Section 10-4
10-4 Memory Allocation
10-4-1 CIO Area Allocation
The memory allocation about analog conversion in the CIO area of PLC is
shown as the following diagram.
The beginning CIO channel is shown in the following table.
CP1L-EL/EM series PLC
The details of allocated CIO channels are described in the following table.
10-4-2 Auxiliary Area Allocation
Analog Option Unit Status
Area
Option board status area: A435 (initial value “0000H”)
Note
A435.14 or A435.15 sets on if analog option board already worked normally.
Then user can read A/D input data and write D/A output data.
Output off bit: AR500.15
Note
This bit will also affect other PLC output channels. Please refer to Appendix D
Auxiliary Area Allocations by Address for more information.
I/O Capacity
Option Port
Beginning
Channel (m)
Channel Range
20
Port 1
CIO2990
CIO2990 ~ CIO2999
30/40
Port 1 (Left)
CIO2980
CIO2980 ~ CIO2989
Port 2 (Right)
CIO2990
CIO2990 ~ CIO2999
Channel
Contents
CP1W-ADB21
CP1W-DAB21V
CP1W-MAB221
m
Analog Input 1
---
Analog Input 1
m+1
Analog input 2
---
Analog input 2
m+2 to m+4
---
---
---
m+5
---
Analog Output 1
Analog Output 1
m+6
---
Analog Output 2
Analog Output 2
m+7 to m+9
---
---
---
I/O Capacity
AR Bits
Option Port
Content
Error Process
20
A435.15
Port 1
I/O option
board run
state
0: Initial state or unit
abnormity state
1: work normally
30/40
A435.14
Port 1 (Left)
A435.15
Port 2 (Right)
AR Bits
Content
Error Process
A500.15 Output
Off
Bit
0: output effective
1: analog option board DA output clear
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......