Industrial Automation

NX-CT[][][][]

NX-series High-speed Counter Unit

NX-CT[][][][]

High-speed counter unit ideal for edge control, achieving high-speed response and high-resolution performance

last update: January 5, 2026

Product name	Specification						Model
Product name	Number of channels *1	Number of external inputs	Number of external outputs	Maximum response frequency *2	I/O refreshing method	Input method	Model
High-speed Counter Unit	2 (NPN)	6 (NPN)	6 (NPN)	1 MHz	• Free-Run refreshing • Synchronous I/O refreshing • Task period prioritized refreshing	5 V/24 V voltage input	NX-CT2120
	2 (PNP)	6 (PNP)	6 (PNP)	1 MHz		5 V/24 V voltage input	NX-CT2220
	2	6 (NPN)	6 (NPN)	4 MHz		RS-422 Line receiver input	NX-CT2320
	2	6 (PNP)	6 (PNP)	4 MHz		RS-422 Line receiver input	NX-CT2420

*1. When set to 6ch mode, the counter channel number is 6 channels.
*2. When set to 6ch mode, the maximum response frequency is 100 kHz.

Product name	Specification	Model
Unit/Terminal Block Coding Pins	For 10 Units (30 terminal block pins and 30 unit pins)	NX-AUX02

last update: January 5, 2026