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3-5-2 SYSMAC LINK System Data Link Settings
AR 0700 to AR 0703 and AR 0704 to AR 0707 are used to designate word
allocations for operating levels 0 and 1 of the SYSMAC LINK System. Alloca-
tion can be set to occur either according to settings from an FIT or automati-
cally in the LR and/or DM areas. If automatic allocation is designated, the
number of words to be allocated to each node is also designated. These set-
tings are shown below.
External/Automatic Allocation
Operating level 0 Operating level 1 Setting
AR 0700 AR 0701 AR 0704 AR 0705
0 0 0 0 Words set externally (FIT)
1 0 1 0
Automatic
LR area only
0 1 0 1
allocation
DM area only
1 1 1 1 LR and DM
areas
Words per Node
The following setting is necessary if automatic allocation is designated
above.
Operating level 0 Operating level 1 Words per node Max. no.
AR 0702 AR 0703 AR 0706 AR 0707 LR area DM area of nodes
0 0 0 0 4 8 16
1 0 1 0 8 16 8
0 1 0 1 16 32 4
1 1 1 1 32 64 2
The above settings are read every cycle while the SYSMAC LINK System is
in operation.
3-5-3 Error History Bits (CPU11-E Only)
AR 0713 (Error History Overwrite Bit) is turned ON or OFF by the user to
control overwriting of records in the Error History Area in the DM area. Turn
AR 0713 ON to overwrite the oldest error record each time an error occurs
after 10 have been recorded. Turn OFF AR 0713 to store only the first 10
records that occur each time after the history area is cleared.
AR 0714 (Error History Reset Bit) is turned ON and then OFF by the user to
reset the Error Record Pointer (DM 0969) and thus restart recording error
records at the beginning of the history area.
AR 0715 (Error History Enable Bit) is turned ON by the user to enable error
history storage and turned OFF to disable error history storage.
Refer to 3-6 DM Area for details on the Error History Area.
Error history bits are refreshed each cycle.
3-5-4 Active Node Flags (CPU11-E only)
AR 08 through AR 11 and AR 12 through AR 15 provide flags that indicate
which nodes are active in the SYSMAC LINK System at the current time.
These flags are refreshed every cycle while the SYSMAC LINK System is
operating.
The body of the following table show the node number assigned to each bit.
If the bit is ON, the node is currently active.
AR Area Section 3-5
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