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Auxiliary Area Allocations by Function Appendix C
Function Block Information
Function Block Memory Information
OMRON FB Library Information
Note These Auxiliary Area bits/words are not to be written by the user. The number of resends and response monitoring time must be
set by the user in the FB communications instructions settings in the PLC Setup, particularly when using function blocks from the
OMRON FB Library to execute FINS messages or DeviceNet explicit messages communications. The values set in the Settings for
OMRON FB Library in the PLC Setup will be automatically stored in the related Auxiliary Area words A580 to A582 and used by
the function blocks from the OMRON FB Library.
Equals Flag for Background
Execution
A598.01 Turns ON if matching data is found for an SRCH(181)
instruction executed in the background.
Read-only
ER/AER Flag for Back-
ground Execution
A395.10 ON when an instruction processing error or an illegal
area access error occurs during background processing.
OFF (0) when background processing starts or power is
turned ON.
Read-only
Name Address Description Access Updated
FB Program Data Flag A345.00 Turns ON if the FB program memory contains FB pro-
gram data.
OFF: No data
ON: Data present
Read-only
Name Address Description Access Updated
FB Communications Instruc-
tion Response Required
A580.15 0: Not required
1: Required
Read-only
FB Communications Instruc-
tion Port No.
A580.08 to
A580.11
0 to 7 hex: Communications port No. 0 to 7
F hex: Automatic allocation
Read-only
FB Communications Instruc-
tion Retries
A580.00 to
A580.03
Automatically stores the number of retries in the FB com-
munications instruction settings specified in the PLC
Setup.
Read-only
FB Communications Instruc-
tion Response Monitoring
Time
A581 Automatically stores the FB communications instruction
response monitoring time set in the PLC Setup.
0001 to FFFF hex (Unit: 0.1 s; Range: 0.1 to 6553.5)
0000 hex: 2 s
Read-only
FB DeviceNet Communica-
tions Instruction Response
Monitoring Time
A582 Automatically stores the FB DeviceNet communications
instruction response monitoring time set in the PLC
Setup.
0001 to FFFF hex (Unit: 0.1 s; Range: 0.1 to 6553.5)
0000 hex: 2 s
Read-only
Name Address Description Access Updated