Mitsubishi FX3UC SERIES User Manual page 162

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition
5.5.4 Related Devices (High-speed counter)
For switching 1-phase 1-count input counter mode to up-count or down-count
Counter type
1-phase 1-count input
For monitoring the up-count/down-count counting direction of 1-phase 2-count input and 2-phase
2-count input counters
Counter type
1-phase 2-count input
2-phase 2-count input
For switching high-speed counter function
Device No.
Contact for
changing high-
M8388
speed counter
function
M8389
M8390
M8391
Function switching
devices
M8392
M8198
M8199
156
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
Name
Changes the function of high-speed counter
Switches the logic of the external reset input
Switches the function of C244
Switches the function of C245
Switches the function of C248 and C253
Device for switching C251, C252 and C254 to single or 4 edge
count
Device for switching C253, C255 and C253 (OP) to single or 4 edge
count
5 Input Specifications and External wiring
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
Description
5.5 High-speed Counters (C235 to C255)
Up-counting Down-counting
OFF
OFF
Up-counting Down-counting
ON
ON
Reference
−
Subsection
5.5.5
Subsection
5.5.6
Subsection
5.5.6
Subsection
5.5.6
Subsection
5.5.7
Subsection
5.5.7