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3-5 AR (Auxiliary Relay) Area
AR word addresses extend from AR 00 to AR 27; AR bit addresses extend
from AR 0000 to AR 2715. Most AR area words and bits are dedicated to
specific uses, such as transmission counters, flags, and control bits, and
words AR 00 through AR 06 and AR 23 through AR 27 cannot be used for
any other purpose. Words and bits from AR 07 to AR 22 are available as
work words and work bits if not used for the following assigned purposes.
Word Use
AR 0713 to AR 0715 Error History Area (CPU11-E only)
AR 07 to AR 15 SYSMAC LINK Units
AR 16, AR 17 SYSMAC LINK and SYSMAC NET Link Units
AR 18 to AR 21 Calendar/clock Area (CPU11-E only)
AR 0708, AR 22 TERMINAL Mode Key Bits (CPU11-E only)
The AR area retains status during power interruptions, when switching from
MONITOR or RUN mode to PROGRAM mode, or when PC operation is
stopped. Bit allocations are shown in the following table and described in the
following pages in order of bit number.
AR Area Flags and Control Bits
Word(s) Bit(s) Function
00 00 to 09 Error Flags for Special I/O Units 0 to 9 (also function as Error Flags for PC Link Units)
10 Error Flag for operating level 1 of SYSMAC LINK or SYSMAC NET Link System
11 Error Flag for operating level 0 of SYSMAC LINK or SYSMAC NET Link System
12 Host Computer to Rack-mounting Host Link Unit Level 1 Error Flag
13 Host Computer to Rack-mounting Host Link Unit Level 0 Error Flag
14 Remote I/O Master Unit 1 Error Flag
15 Remote I/O Master Unit 0 Error Flag
01 00 to 09 Restart Bits for Special I/O Units 0 to 9 (also function as Restart Bits for PC Link Units)
10 Restart Bit for operating level 1 of SYSMAC LINK or SYSMAC NET Link System
11 Restart Bit for operating level 0 of SYSMAC LINK or SYSMAC NET Link System
12, 13 Not used.
14 Remote I/O Master Unit 1 Restart Bit
15 Remote I/O Master Unit 0 Restart Bit
02 00 to 04 Error Flags for Slave Racks 0 to 4
05 to 15 Not used.
03 00 to 15 Error Flags for Optical I/O Units 0 to 7
04 00 to 15 Error Flags for Optical I/O Units 8 to 15
05 00 to 15 Error Flags for Optical I/O Units 16 to 23
06 00 to 15 Error Flags for Optical I/O Units 24 to 31
07 00 to 03 Data Link setting for operating level 0 of SYSMAC LINK System
04 to 07 Data Link setting for operating level 1 of SYSMAC LINK System
08 TERMINAL Mode Input Cancel Bit (CPU11-E only)
09 to 12 Not used.
13 Error History Overwrite Bit (CPU11-E only)
14 Error History Reset Bit (CPU11-E only)
15 Error History Enable Bit (CPU11-E only)
08 to 11 00 to 15 Active Node Flags for SYSMAC LINK System nodes of operating level 0
AR Area Section 3-5
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