709
Auxiliary Area Allocations by Address
Appendix D
A295
11
No END Error
Flag
ON when there is not an END(001)
instruction in each program within a
task.
CPU Unit operation will stop and the
ERR/ALM indicator will light when
this flag goes ON.
(The task number where the error
occurred will be stored in A294 and
the program address will be stored in
A298 and A299.)
ON: No END
OFF: Normal
condition
Cleared
Cleared
---
A294,
A298/
A299
12
Task Error
Flag
ON when a task error has occurred.
The following conditions generate a
task error.
There isn’t even one regular task that
is executable (started).
There isn’t a program allocated to
the task.
(The task number where the error
occurred will be stored in A294 and
the program address will be stored in
A298 and A299.)
ON: Error
OFF: Normal
Cleared
Cleared
---
A294,
A298/
A299
13
Differentiation
Overflow Error
Flag
The allowed value for Differentiation
Flags which correspond to differenti-
ation instructions has been
exceeded. CPU Unit operation will
stop and the ERR/ALM indicator will
light when this flag goes ON.
(The task number where the error
occurred will be stored in A294 and
the program address will be stored in
A298 and A299.)
ON: Error
OFF: Normal
Cleared
Cleared
---
A294,
A298/
A299
14
Illegal Instruc-
tion Error Flag
ON when a program that cannot be
executed has been stored. CPU Unit
operation will stop and the ERR/ALM
indicator will light when this flag goes
ON.
ON: Error
OFF: Normal
Cleared
Cleared
---
A294,
A298/
A299
15
UM Overflow
Error Flag
ON when the last address in UM
(User Memory) has been exceeded.
CPU Unit operation will stop and the
ERR/ALM indicator will light when
this flag goes ON.
ON: Error
OFF: Normal
Cleared
Cleared
---
A294,
A298/
A299
A298
All
Program
Address
Where Pro-
gram Stopped
(Rightmost 4
digits)
These words contain the 8-digit
binary program address of the
instruction where program execution
was stopped due to a program error.
(A294 contains the task number of
the task where program execution
was stopped.)
Right 4 digits
of the pro-
gram address
Cleared
Cleared
---
A294
A299
All
Program
Address
Where Pro-
gram Stopped
(Leftmost 4
digits)
Left 4 digits of
the program
address
Cleared
Cleared
---
A300
All
Error Log
Pointer
When an error occurs, the Error Log
Pointer is incremented by 1 to indi-
cate the location where the next error
record will be recorded as an offset
from the beginning of the Error Log
Area (A100 to A199).
The Error Log Pointer can be cleared
to 00 by turning A500.14 (the Error
Log Reset Bit) ON.
When the Error Log Pointer has
reached 14 hex (20 decimal), the
next record is stored in A195 to A199
when the next error occurs.
00 to 14
hexadecimal
Retained
Retained Refreshed
when error
occurs.
A500.14
Address
Name
Function
Settings
Status
after
mode
change
Status
at star-
tup
Write
timing
Related
flags, set-
tings
Words
Bits
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: ......