469
Analog Input Units
Section 9-2
Handling Unit Errors
• When an error occurs in an Analog Input Unit, the analog input conver-
sion data becomes 0000.
• CP-series Expansion Unit errors are output to bits 0 to 5 of word A436.
The bits are allocated from A436.00 in order starting with the Unit nearest
the CPU Unit. Use these flags in the program when it is necessary to
detect errors.
Ladder Program Example
Analog
input
Input range Range code
Averaging
Set data
Destination
word
Input 1
0 to 10 V
01
Yes
1101 (D hex) n+1
Input 2
4 to 20 mA
10
Yes
1110 (E hex) n+1
Input 3
−
10 to +10 V 00
No
1000 (8 hex) n+2
Input 4
Not used.
−
(00)
---
0000 (0 hex) n+2
Analog input 2 open circuit alarm
P_EQ
100.00
Execution
condition
Execution
condition
Execution
condition
Execution
condition
←
Reads analog input 1 converted value.
←
Reads analog input 3 converted value.
←
Reads analog input 2 converted value.
←
Writes set data E and D.
←
Writes set data 0 and 8.
Always ON
P_On
First Cycle Flag
A200.11
MOV(021)
#80ED
102
TIM
0005
#0002
3
#8000
CMP(020)
MOV(021)
#8008
103
2
D100
MOV(021)
4
D102
MOV(021)
3
D101
MOV(021)
T0005
T0005
T0005
T0005
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: ......