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10 Use of High-speed Counters
96
FX3S Series Programmable Controllers
User's Manual - Hardware Edition
10.9 Related Devices and Function Switching Procedures
10.9 Related Devices and Function Switching Procedures
10.9.1 Related devices
1. For switching 1-phase 1-count input counter mode to up-count or down-count
2. For monitoring of up-count/down-count counting direction of 1-phase 2-count input and 2-
phase 2-count input counters
3. For switching high-speed counter function
High-speed counter type High-speed counter No. Specifying device Up-counting Down-counting
1-phase 1-count input
C235 M8235
OFF ON
C236 M8236
C237 M8237
C238 M8238
C239 M8239
C240 M8240
C241 M8241
C242 M8242
C243 M8243
C244 M8244
C245 M8245
High-speed counter type High-speed counter No. Monitoring device OFF ON
1-phase 2-count input
C246 M8246
Up-counting Down-counting
C247 M8247
C248 M8248
C249 M8249
C250 M8250
2-phase 2-count input
C251 M8251
C252 M8252
C253 M8253
C254 M8254
C255 M8255
Device No. Name Description Reference
M8388
Contact for changing high-speed counter
function
Changes the function of high-speed counter -
M8392 Function switching devices Switches the function of C248 and C253 Subsection 10.9.2