Omron SYSMAC CS Series Operation Manual page 463

PLC Link Area
CIO Area Flags
Flag type Bit
CPU Unit 00 Unit 24 (#1, Unit 8)
RUN Flags
01 Unit 25 (#1, Unit 9)
02 Unit 26 (#1, Unit 10)
03 Unit 27 (#1, Unit 11)
04 Unit 28 (#1, Unit 12)
05 Unit 29 (#1, Unit 13)
06 Unit 30 (#1, Unit 14)
07 Unit 31 (#1, Unit 15)
PLC Link 08 Unit 24 (#1, Unit 8)
Error Flags
09 Unit 25 (#1, Unit 9)
10 Unit 26 (#1, Unit 10)
11 Unit 27 (#1, Unit 11)
12 Unit 28 (#1, Unit 12)
13 Unit 29 (#1, Unit 13)
14 Unit 30 (#1, Unit 14)
15 Unit 31 (#1, Unit 15)
PLC Link Area
Initialization
1,2,3...
IOM Hold Bit Operation
Forcing Bit Status
Auxiliary Area Flags
The following table shows the allocation of the CIO Area flags related to PLC
Link operation. (The numbers in parentheses show the allocation for multilevel
systems; operating level 0 is #0 and operating level 1 is #1.)
CIO 0247
Unit 16 (#1, Unit 0)
Unit 17 (#1, Unit 1)
Unit 18 (#1, Unit 2)
Unit 19 (#1, Unit 3)
Unit 20 (#1, Unit 4)
Unit 21 (#1, Unit 5)
Unit 22 (#1, Unit 6)
Unit 23 (#1, Unit 7)
Unit 16 (#1, Unit 0)
Unit 17 (#1, Unit 1)
Unit 18 (#1, Unit 2)
Unit 19 (#1, Unit 3)
Unit 20 (#1, Unit 4)
Unit 21 (#1, Unit 5)
Unit 22 (#1, Unit 6)
Unit 23 (#1, Unit 7)
The contents of the PLC Link Area will be cleared in the following cases:
1. The operating mode is changed from PROGRAM mode to RUN/MONITOR
mode or vice-versa and the IOM Hold Bit is OFF.
2. The PLC's power supply is cycled and the IOM Hold Bit is OFF or not pro-
tected in the PLC Setup.
3. The PLC Link Area is cleared from a Programming Device.
4. PLC operation is stopped when a fatal error other than an FALS(007) error
occurs. (The contents of the PLC Link Area will be retained when
FALS(007) is executed.)
If the IOM Hold BIt (A50012) is ON, the contents of the PLC Link Area won't
be cleared when a fatal error occurs or the operating mode is changed from
PROGRAM mode to RUN/MONITOR mode or vice-versa.
If the IOM Hold BIt (A50012) is ON and the PLC Setup's "IOM Hold Bit Status
at Startup" setting is set to protect the IOM Hold Bit, the contents of the PLC
Link Area won't be cleared when the PLC's power supply is cycled.
Bits in the PLC Link Area can be force-set and force-reset.
A44211 will be ON when the PLC Link Unit is in operating level #1. A44212
will be ON when the Unit is in operating level #0 or a PLC Link Unit isn't
mounted in the PLC. (The other bits in A442 are not used.)
Refer to 9-16 Auxiliary Area and to Appendix B Auxiliary Area for more details
on A422.
Note 1. The PLC Link Area (CIO 0247 to CIO 0250) overlaps the I/O Area. When
using PLC Link Units, be sure that words are not also allocated to other I/O
points.
2. When designating addresses in programming or allocations inside C200H
Special I/O Units, "247" to "250" will actually specify CIO 0247 to CIO 0250
in the CPU Unit. A422 cannot be specified inside a C200H Special I/O Unit.
CIO 0248 CIO 0249
Unit 8 (#0, Unit 8)
Unit 9 (#0, Unit 9)
Unit 10 (#0, Unit 10)
Unit 11 (#0, Unit 11)
Unit 12 (#0, Unit 12)
Unit 13 (#0, Unit 13)
Unit 14 (#0, Unit 14)
Unit 15 (#0, Unit 15)
Unit 8 (#0, Unit 8)
Unit 9 (#0, Unit 9)
Unit 10 (#0, Unit 10)
Unit 11 (#0, Unit 11)
Unit 12 (#0, Unit 12)
Unit 13 (#0, Unit 13)
Unit 14 (#0, Unit 14)
Unit 15 (#0, Unit 15)
Section 9-7
CIO 0250
Unit 0 (#0, Unit 0)
Unit 1 (#0, Unit 1)
Unit 2 (#0, Unit 2)
Unit 3 (#0, Unit 3)
Unit 4 (#0, Unit 4)
Unit 5 (#0, Unit 5)
Unit 6 (#0, Unit 6)
Unit 7 (#0, Unit 7)
Unit 0 (#0, Unit 0)
Unit 1 (#0, Unit 1)
Unit 2 (#0, Unit 2)
Unit 3 (#0, Unit 3)
Unit 4 (#0, Unit 4)
Unit 5 (#0, Unit 5)
Unit 6 (#0, Unit 6)
Unit 7 (#0, Unit 7)
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