Mitsubishi AJ65BT-D62D High-Speed Counter Module for CC-Link MELSEC-A

The Mitsubishi AJ65BT-D62D (AJ65BT-D62D) is a remote high-speed counter unit designed for distributed automation architectures using the CC-Link fieldbus network and MELSEC-A series control platforms. Engineered for enclosure and control cabinet installation, this module provides precise high-frequency counting and position detection capabilities in industrial automation and process monitoring environments. The unit features two differential line driver digital counter inputs capable of processing signal frequencies up to 400 kHz, compatible with 5 VDC, 12 VDC, and 24 VDC input voltage levels. It integrates reliable screw clamp terminal connections for secure field wiring and operates from an external 24 VDC supply voltage. Through its native CC-Link interface, the AJ65BT-D62D transmits high-speed count values and operational status data back to the central master controller, enabling accurate feedback from optical encoders, pulse generators, and external measuring devices in positioning and speed monitoring applications.