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Allocated CIO Area Words Section 3-2
11 Master
User-set
Alloca-
tions
Switch
OFF→
ON
User Reads setup data from the Master User Allocations
Setup Table (words m+1 to m+7) in the DM Area and
registers the scan list. (The Unit automatically restarts.)
Once registered, the Unit will operate with master user-
set allocations regardless of whether the power is
turned OFF and back ON again until the scan list is
cleared.
Pro-
gram
mode
En-
abled
--- Master
Fixed
Alloca-
tion
Setting
1
enabled
OFF Unit Returns to OFF when the scan list is registered and the
Unit starts operating with the scan list enabled.
Note If there is a setting error, an error code will be
stored in the Master User Allocations Setup
Table (words m+1 to m+7) and the Scan List
Register/Clear Failed Flag (word n+12, bit 11)
will turn ON.
12 Tempo-
rary Set-
ting
Switch for
Commu-
nications
Cycle
Time
OFF→
ON
User Reads setup data from the Communications Cycle
Time Setup Table (word m) in the DM Area and tempo-
rarily changes the cycle time. The settings are not
stored in non-volatile memory in the Unit and will not
be valid again if the power is turned OFF and back ON
or if the Unit is restarted.
Use this to temporarily extend the communications
cycle time with a ladder program to place priority on
message communication.
Note The cycle time can be changed in any CPU Unit
operating mode.
--- --- --- None
OFF Unit Returns to OFF after the communications cycle time is
changed.
The Communications Cycle Time Reference Table
(words m+15 to m+18) will be cleared before the switch
returns to OFF if the change was successfully com-
pleted.
Note The Communications Cycle Time Setting Failed
Flag (word n+12, bit 12) turns ON if there is a
setting error, and the Communications Cycle
Time Reference Table (words m+15 to m +18)
will not be cleared.
13 Commu-
nications
Cycle
Time Set-
ting
Switch
OFF→
ON
User Reads setup data from the communications cycle time
setup table (word m) in the DM area to change the
communications cycle time, and to store the communi-
cations cycle time in non-volatile memory in the Unit.
The settings will therefore be valid again if the power is
turned OFF and back ON or if the Unit is restarted.
Pro-
gram
mode
--- --- None
OFF Unit Returns to OFF after the communications cycle time is
changed.
The Communications Cycle Time Reference Table
(words m+15 to m+18) will clear before the switch
returns to OFF if the change was successfully com-
pleted.
Note The Communications Cycle Time Setting Failed
Flag (word n+12 bit 12) will turn ON if there is a
setting error. In that case, the Communications
Cycle Time Reference Table (words m+15 to m
+18) will not be cleared.
Bit Name Status Con-
trolled
by
Unit operation Operation condi-
tions
Default
setting
CPU
Unit
oper-
ating
mode
Mas-
ter
func-
tion
Scan
list
sta-
tus