682
Auxiliary Area Allocations by Function
Appendix C
PLC Setup Error Information
I/O Information
Ethernet Controller Stop Error
Name
Address
Description
Access
Updated
PLC Setup Error Flag
(non-fatal error)
A402.10
ON when there is a setting error in the PLC Setup.
Read-only
PLC Setup Error Location
A406
When there is a setting error in the PLC Setup, the loca-
tion of that error is written to A406 in 4-digit hexadecimal.
Read-only
Name
Address
Description
Access
Updated
Too Many I/O Points Flag
(fatal error)
A401.11
ON when the number of Expansion Units and Expansion
I/O Units exceeds the limit, when the number of words
allocated to these Units exceeds the limit, are mounted.
Read-only
Too Many I/O Points,
Details
A407.00 to
A407.12
Always 0000 hex.
Read-only
Too Many I/O Points, Cause A407.13 to
A407.15
The 3-digit binary value of these bits indicates the cause
of the Too Many I/O Points Error.
010: Too many words
011: Too many Units
Read-only
I/O Bus Error Flag
(fatal error)
A401.14
ON in the following cases:
• When an error occurs in a data transfer between the
CPU Unit and a Expansion Unit or Expansion I/O Unit.
If this happens, 0A0A hex will be output to A404.
• When an error occurs in a data transfer between the
CPU Unit. If this happens, 0000 hex will be output to
A404 to indicate the first Unit, 0001 hex to indicate the
second Unit, and 0F0F hex to indicate an undeter-
mined Unit.
CPU Unit operation will stop and the ERR/ALM indicator
on the front of the CPU Unit will light.
(This flag will be turned OFF when the error is cleared.)
Read-only
I/O Bus Error Slot Number
A404
Contains information on I/O bus errors.
The CPU Unit will stop operating and the ERR/ALM indi-
cator on the front of the CPU Unit will light.
(A401.14 (I/O Bus Error Flag) will turn ON.)
(This information will be cleared when the error is
cleared.)
0A0A hex: Expansion Unit or Expansion I/O Unit error
Read-only
Duplication Error Flag
(fatal error)
A401.13
ON in the following cases:
• Two CPU Bus Units have been assigned the same
unit number.
Read-only
Unit Error Flags
A436.00 to
A436.05
ON when an error occurs in an Expansion Unit or Expan-
sion I/O Unit.
A436.00: 1st Unit
A436.01: 2nd Unit
A436.02: 3rd Unit
A436.03: 4th Unit
A436.04: 5th Unit
A436.05: 6th Unit
CP1W-AD041/DA041, CP1W-32ER/32ET/32ET1,
CP1W-TS002 and CP1W-TS102 are each counted as
two Units.
Read-only
Number of Connected Units
A437
Stores the number of Expansion Units and Expansion
I/O Units connected as a hexadecimal number.
Note
This information is valid only when a Too Many
I/O Points error has occurred. CP1W-
AD041/DA041, CP1W-32ER/32ET/32ET1,
CP1W-TS002 and CP1W-TS102 are each
counted as two Units.
Read-only
Name
Address
Description
Access
Updated
Ethernet Controller Stop
Error
A401.04
ON when the Ethernet controller stops because of sum
value of MAC address error or controller error.
Read-only
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: ......