810
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
36 Operation of Special Devices (M8000 -, D8000 -)
36.1 Special Device List (M8000 -, D8000 -)
High Speed Counter Up/down Counter Counting Direction (Refer to Section 4.7 for details.)
M 8235
C235
When M8
is ON, the corresponding
C
is changed to down mode.
•
ON: Down count operation
•
OFF: Up count operation
3
3
–
3
3
3
3
3
M 8236
C236
3
3
–
3
3
3
3
3
M 8237
C237
3
3
–
3
3
3
3
3
M 8238
C238
3
3
–
3
3
3
3
3
M 8239
C239
3
3
–
3
3
3
3
3
M 8240
C240
3
3
–
3
3
3
3
3
M 8241
C241
3
3
–
3
3
3
3
3
M 8242
C242
3
3
–
3
3
3
3
3
M 8243
C243
3
3
–
3
3
3
3
3
M 8244
C244
3
3
–
3
3
3
3
3
M 8245
C245
3
3
–
3
3
3
3
3
High Speed Counter Up/down Counter Monitoring (Refer to Section 4.7 for details.)
[M]8246
C246
When C
of 1-phase 2-input or 2-phase
2-input counter is in down mode, the
corresponding M8
turns ON.
•
ON: Down count operation
•
OFF: Up count operation
3
3
–
3
3
3
3
3
[M]8247
C247
3
3
–
3
3
3
3
3
[M]8248
C248
3
3
–
3
3
3
3
3
[M]8249
C249
3
3
–
3
3
3
3
3
[M]8250
C250
3
3
–
3
3
3
3
3
[M]8251
C251
3
3
–
3
3
3
3
3
[M]8252
C252
3
3
–
3
3
3
3
3
[M]8253
C253
3
3
–
3
3
3
3
3
[M]8254
C254
3
3
–
3
3
3
3
3
[M]8255
C255
3
3
–
3
3
3
3
3
[M]8256 to [M]8259
Not used
–
–
–
–
–
–
–
–
Analog Special Adapter (Refer to Subsection 36.2.17 for applicability of each analog special adapter.)
M 8260 to M 8269
*1
1st special adapter
3
3
*2
–
–
–
–
–
–
M 8270 to M 8279
*1
2nd special adapter
3
3
*2
–
–
–
–
–
–
M 8280 to M 8289
*1
3rd special adapter
3
3
*2
–
–
–
–
–
–
M 8290 to M 8299
*1
4th special adapter
3
3
*2
–
–
–
–
–
–
[M]8300 to [M]8315
Not used
–
–
–
–
–
–
–
–
*1.
The unit number of the analog special adapter is counted from the main units side.
*2.
Available in Ver. 1.20 or later.
Unconnected I/O Designation Error (Refer to Chapter 37 for details.) and flag
[M]8316
*3
Unconnected I/O designation error
3
3
D8316
D8317
–
–
–
–
–
[M]8317
Not used
–
–
–
–
–
–
–
–
[M]8318
BFM initialization failure
ON when a FROM/TO error has occurred in a special
function block/unit as specified in the BFM
initialization function at changing PLC from STOP to
RUN.
When M8318 turns ON, the unit number in which the
error has occurred is stored in D8318, and the BFM
number is stored in D8319.
3
3
*4
D8318
D8319
–
–
–
–
–
[M]8319 to [M]8327
Not used
–
–
–
–
–
–
–
–
[M]8328
Instruction non-execution
3
3
*4
–
–
–
–
–
–
[M]8329
Instruction execution abnormal end
3
3
–
–
–
–
–
–
*3.
If the I/O device numbers are unavailable, M8316 turns ON when its directly designated to device
numbers including LD, AND, OR, and OUT instructions or indirectly designated by index.
*4.
Available in Ver. 2.00 or later.
Number and name
Operation and function
Applicable model
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
2N
FX
1NC
FX
2NC
Содержание FX3U Series
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