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88
Overview
Section 6-1
6-1-2
Hold/Clear for I/O Memory Data
The following table shows when the status of the memory areas is held and
when it is cleared.
Note
1.
“Operating mode changed” means between RUN or MONITOR mode and
PROGRAM mode.
2.
The status of Timer Completion Flags and Timer PVs is held when the op-
erating mode changes from RUN mode or MONITOR mode to PROGRAM
mode, but it is cleared when the operating mode is changed from PRO-
GRAM mode to RUN mode or MONITOR mode.
3.
It is possible to set whether data in the EM Area is held or cleared in the
Unit Setup Area (bits 12 to 15 in DM 6600).
Name
Addresses
External I/O
allocation
Operating
mode
changed
(See note 1.)
Fatal errors
Power supply
turned ON
FALS error
Other fatal
errors
Input Area
IR 000
Yes
Cleared
Held
Cleared
Cleared
Output Area
IR 001
Yes
Cleared
Cleared
Cleared
Cleared
Work Area
IR 002 to
IR 049,
IR 200 to
IR 219
No
Cleared
Held
Cleared
Cleared
SR Area
SR 220 to
SR 255
No
(Refer to the individual explanations for the functions.)
AR Area
AR 00 to
AR 27
No
Held or cleared depending on the address.
LR Area
LR 00 to
LR 31
No
Cleared
Held
Cleared
Cleared
Timer Completion
Flags
TIM/CNT 000
to TIM/CNT
255
No
Held
(See note 1.)
Held
Held
Cleared
Timer PVs
TIM/CNT 000
to TIM/CNT
255
No
Held
(See note 2.)
Held
Held
Cleared
Counter Completion
Flags
TIM/CNT 000
to TIM/CNT
255
No
Held
Held
Held
Cleared
Counter PVs
TIM/CNT 000
to TIM/CNT
255
No
Held
Held
Held
Held
DM Area
General-
purpose
read/write
words
DM 0000 to
DM 6143
No
Held
Held
Held
Held
General-
purpose
read-only
words
DM 6200 to
DM 6599
Error Log
Area
DM 6144 to
DM 6199
Unit Setup
Area
DM 6600 to
DM 6655
EM Area
EM 0000 to
EM 2047
No
According to
setting.
(See note 3.)
According to
setting.
(See note 3.)
According to
setting.
(See note 3.)
According to
setting.
(See note 3.)
Содержание CS1W-HCA12-V1
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Страница 20: ...xx Conformance to EC Directives 7...
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Страница 78: ...58 Fail safe Circuits Section 3 5...
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Страница 240: ...220 Troubleshooting Flowcharts Section 9 5...
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