Omron CJ - 08-2008 Operation Manual page 666

Auxiliary Area
Address Name
Words Bits
A407 A40700 Too Many I/O
to Points, Details
A40712
A40713 Too Many I/O
to Points, Cause
A40715
A408 A40800 Basic I/O Unit
to Error, Slot
A40807 Number
A40808 Basic I/O Unit
to Error, Rack
A40815 Number
A409 A40900 Expansion
to Rack Number
A40903 Duplication
Flags
A410 A41000 CPU Bus Unit
to Number Dupli-
A41015 cation Flags
618
Function
The 6 possible causes of the Too Many I/O Points
Error are listed below. The 3-digit binary value in
A40713 to A40715 indicates the cause of the error
(values 0 to 5 correspond to causes 1 to 6, below).
The 13-bit binary value in A40700 to A40712 indi-
cates the details: the excessive value or the dupli-
cated unit number.
CPU Unit operation will stop and the ERR/ALM indi-
cator on the front of the CPU Unit will light.
1) The number of I/O points will be written here when
the total number of I/O points set in the I/O Table
(excluding Slave Racks) exceed the maximum
allowed for the CPU Unit.
2) The number of Racks will be written here when the
number of Expansion Racks exceeds the maxi-
mum.
(The relevant value will be written here (A40700 to
A40712) when the error occurs. These bits will be
cleared when the error is cleared.)
The 3-digit binary value of these bits indicates the
cause of the Too Many I/O Points Error and shows
the meaning of the value written to bits A40700 to
A40712.
Values of 000 to 101 (0 to 5) correspond to causes 1
through 6 described in "Too Many I/O Points, Cause
1," above.
000: Too many I/O total
101: Too many Racks
111: Too many Units on a Rack
(These bits will be cleared when the error is cleared.)
When an error has occurred in a Basic I/O Unit,
A40212 will be turned ON and the slot number where
the error occurred will be written here in binary.
The CPU Unit will continue operating and the ERR/
ALM indicator on the front of the CPU Unit will flash.
00 to 09 hexadecimal
(Slots 0 to 9)
(These bits will be cleared when the error is cleared.)
When an error has occurred in a Basic I/O Unit,
A40212 will be turned ON and the Rack number
where the error occurred will be written here in
binary.
The CPU Unit will continue operating and the ERR/
ALM indicator on the front of the CPU Unit will flash.
00 to 03 hexadecimal
(Racks 0 to 3)
(These bits will be cleared when the error is cleared.)
The corresponding flag will be turned ON when an
Expansion Rack's starting word address was set
from a Programming Device and two Racks have
overlapping word allocations or a Rack's starting
address exceeds CIO 0901. Bits 00 to 03 correspond
to Racks 0 to 3.
1: Same words allocated to two different Racks or
Rack starting address exceeds CIO 0901.
0: No error
(The corresponding flag will be cleared when the
error is cleared.)
The Duplication Error Flag (A40113) and the corre-
sponding flag in A410 will be turned ON when an
CPU Bus Unit's unit number has been duplicated.
Bits 00 to 15 correspond to unit numbers 0 to F.
CPU Unit operation will stop and the ERR/ALM indi-
cator on the front of the CPU Unit will light.
1: Duplication detected
0: No duplication
Appendix C
Status Status Write timing/
after at star- Related flags,
mode tup settings
change
Cleared Cleared A40111,
A40713 to A40715
Cleared Cleared ---
Cleared Cleared A40212
Cleared Cleared A40212
Cleared Cleared ---
Cleared Cleared A40113