Related Devices - Mitsubishi Electric MELSEC-Q Structured Programming Manual

FXCPU Structured Programming Manual
[Device & Common]
2.7.5

Related devices

1. Devices used to switch the counting direction of 1-phase 1-counting input counters
Type
1-phase 1-counting input
2. Devices used to monitor the counting direction of 1-phase 1-counting input counters and 2-
phase 2-counting input counters
Type
1-phase 1-counting input
2-phase 2-counting input
3. Devices used to switch the high speed counter function
FX /FX /FX
0S 0 0N
Device number
M8388
M8389
M8390
M8391
M8392
M8395
M8198
M8199
78
Counter No.
C235
C236
C237
C238
C239
C240
C241
C242
C243
C244
C245
Counter No.
C246
C247
C248
C249
C250
C251
C252
C253
C254
C255
/FX /FX /FX /FX /FX
1S 1N 1NC U
Name
Contact for switching function
of high speed counter
Function switching device
Specifying device
M8235
M8236
M8237
M8238
M8239
M8240
M8241
M8242
M8243
M8244
M8245
Monitoring device
M8246
M8247
M8248
M8249
M8250
M8251
M8252
M8253
M8254
M8255
/FX /FX PLCs do not support this function.
2C 2N 2NC
Switches the function of high speed counter.
Switches the logic of the external reset input.
(For details, refer to Subsection 2.7.6.)
(FX /FX /FX PLCs do not support this device.)
3S 3G 3GC
Switches the function of C244. (For details, refer to Subsection 2.7.7.)
(FX /FX /FX PLCs do not support this device.)
3S 3G 3GC
Switches the function of C245. (For details, refer to Subsection 2.7.7.)
(FX /FX /FX PLCs do not support this device.)
3S 3G 3GC
Switches the function of C248 and C253. (For details, refer to Subsection 2.7.7.)
Switches the function of C254. (For details, refer to Subsection 2.7.7.)
(FX /FX /FX PLCs do not support this device.)
3S 3U 3UC
Switches the edge counting type (between 1 and 4) of C251, C252 and C254.
(For details, refer to Subsection 2.7.8.)
(FX /FX /FX PLCs do not support this device.)
3S 3G 3GC
Switches the edge counting type (between 1 and 4) of C253, C255 and C253
(OP). (For details, refer to Subsection 2.7.8.)
(FX /FX /FX PLCs do not support this device.)
3S 3G 3GC
2 Devices in Detail
2.7 High Speed Counter [C]
Up-counting Down-counting
OFF
OFF
Up-counting Down-counting
Description
ON
ON