MELSEC-F series High-Speed Counting

製品情報

Using high speed counters, high speed signals from encoder ans sensors can be counted.
Because FX PLC has built-in high performance high speed counters, high speed control is possible with a simple program. A high speed counter block with hardware comparator is also available.

High speed counter block/adapter

Model (Number of channels)	Type	Highest response frequency	Hardware comparison output function	2-phase counter edge count function	Applicable FX PLC
Model (Number of channels)	Type	Highest response frequency	Hardware comparison output function	2-phase counter edge count function	FX 3S	FX 3G	FX 3U	FX 3GC	FX 3UC
FX2N-1HC (1 ch)	1-phase 1-count	Max. 50 kHz	○	-	×	×	○ Max. 8 units	×	23 ○ Max. 8 units
	1-phase 2-count	Max. 50 kHz		-
	2-phase 2-count	1 edge count: Max. 50 kHz 2 edge count: Max. 25 kHz 4 edge count: Max. 12.5 kHz		○
FX3U-2HC (2 ch)	1-phase 1-count	Max. 200 kHz	○	-	×	×	○ Max. 8 units	×	*2 ○ Max. 4 units
	1-phase 2-count	Max. 200 kHz		-
	2-phase 2-count	1 edge count: Max. 200 kHz 2 edge count: Max. 100 kHz 4 edge count: Max. 50 kHz		○
FX2NC-1HC (1 ch)	1-phase 1-count	Max. 50 kHz	○	-	×	×	×	×	*3 ○ Max. 8 units
	1-phase 2-count	Max. 50 kHz		-
	2-phase 2-count	1 edge count: Max. 50 kHz 2 edge count: Max. 25 kHz 4 edge count: Max. 12.5 kHz		○
FX3U-4HSX-ADP (4 ch)	1-phase 1-count	Max. 200 kHz	×	○	×	×	*1 ○ Max. 2 units	×	×
	1-phase 2-count	Max. 200 kHz
	2-phase 2-count	1 edge count: Max. 100 kHz 4 edge count: Max. 100 kHz

*1When used together with analog or communication adapters, function expansion board is required.
*2When connecting to FX3UC, FX2NC-CNV-IF or FX3UC-1PS-5V is required.
*3FX3UC-32MT-LT(-2): 7 units. FX3UC-**MT/D, FX3UC-**MT/DSS, FX3UC-16MR/D(S)-T: 8 units.

Built-in high speed counter function (high speed input adapter function)

FX3S Series PLC

Type	Counter No. Highest response frequency*	Max. response frequency when high speed processing instruction is used*		Supported high speed processing instructions					High speed counter move	2 phase counter multi- count function	FX3U-4HSX-ADP max. response frequency (FX3U only)
Type	Counter No. Highest response frequency*	When high speed comparison SET/RESET is used	When high speed band comparison HSZ is used	High speed comparison SET	High speed comparison RESET	High speed band comparison	Counter interrupt	High speed table comparison	High speed counter move	2 phase counter multi- count function	FX3U-4HSX-ADP max. response frequency (FX3U only)
1- phase 1- count	C235, C236, C241 Max. 2 pts： Max. 60 kHz	overall frequency 60 kHz		○	○	○	×	×	×	-	×
1- phase 1- count	C237 to C240, C242 to C245 Max. 4 pts： Max. 10 kHz
1- phase 2- count	C246 Max. 1pt： Max. 60 kHz
1- phase 2- count	C247, C248, C248(OP) C249, C250 Max. 2 pts： Max. 10 kHz
2- phase 2- count	C251 Max. 1pt： Max. 30 kHz									×
2- phase 2- count	C252, C253, C253(OP) C254, C255 Max. 2 pts： Max. 5 kHz									×

*Regarding high speed counter reponse frequency, the overall frequency is limited. For details, please refer to the programming manual.

FX3G, FX3GC Series PLC

Type	Counter No. Highest response frequency*	Max. response frequency when high speed processing instruction is used*		Supported high speed processing instructions					High speed counter move	2 phase counter multi- count function	FX3U-4HSX-ADP max. response frequency (FX3U only)
Type	Counter No. Highest response frequency*	When high speed comparison SET/RESET is used	When high speed band comparison HSZ is used	High speed comparison SET	High speed comparison RESET	High speed band comparison	Counter interrupt	High speed table comparison	High speed counter move	2 phase counter multi- count function	FX3U-4HSX-ADP max. response frequency (FX3U only)
1- phase 1- count	C235, C236, C238, C239, C241 Max. 4 pts： Max. 60 kHz	overall frequency 60 kHz		○	○	○	×	×	×	-	×
1- phase 1- count	C237, C240, C242 to C245 Max. 2 pts： Max. 10 kHz
1- phase 2- count	C246, C248(OP) Max. 2 pts： Max. 60 kHz
1- phase 2- count	C247 to C250 Max. 2 pts： Max. 10 kHz
2- phase 2- count	C251, C253(OP) Max. 2 pts： Max. 30 kHz									×
2- phase 2- count	C252 to C255, C254(OP) Max. 2 pts： Max. 5 kHz									×

*Regarding high speed counter reponse frequency, the overall frequency is limited. For details, please refer to the programming manual.

FX3U, FX3UC Series PLC

Type	Counter No. Highest response frequency*		Max. response frequency when high speed processing instruction is used*		Supported high speed processing instructions					High speed counter move	2 phase counter multi- count function	FX3U-4HSX-ADP max. response frequency (FX3U only)
Type	Counter No. Highest response frequency*		When high speed comparison SET/RESET is used	When high speed band comparison HSZ is used	High speed comparison SET	High speed comparison RESET	High speed band comparison	Counter interrupt	High speed table comparison	High speed counter move	2 phase counter multi- count function	FX3U-4HSX-ADP max. response frequency (FX3U only)
1- phase 1- count	C235 to C240 Max. 6 pts： Max. 100 kHz		40 kHz	40- (Number of times of use of instruction)	○	○	○	○	○	○	-	200 kHz
	C244(OP), C245(OP) Max. 2 pts： Max. 10 kHz		10 kHz									200 kHz
	C241 to C245 Max. 3 pts： Max. 40 kHz		40 kHz									-
1- phase 2- count	C246, C248(OP) Max. 2 pts： Max. 100 kHz		40 kHz									200 kHz
1- phase 2- count	C247 to C250 Max. 2 pts： Max. 40 kHz		40 kHz									-
2- phase 2- count	C251, C253 Max. 2 pts： Max. 50 kHz (1 edge count, 4 edge count)	1 edge count	40 kHz								○	100 kHz
		4 edge count	10 kHz	(40- Number of times of use of instruction)÷4								100 kHz
	C252, C253(OP), C254, C255 Max. 2 pts： Max. 40 kHz	1 edge count	40 kHz	40- (Number of times of use of instruction)								-
	C252, C253(OP), C254, C255 Max. 2 pts： Max. 40 kHz	4 edge count	10 kHz	(40- Number of times of use of instruction)÷4								-

*Regarding high speed counter reponse frequency, the overall frequency is limited. For details, please refer to the programming manual.

Variety of functions