AJ65DBTB1-32T1 Mitsubishi Universal Model Redundant Power Supply Module

1. Product Description​​
The ​​Mitsubishi AJ65DBTB1-32T​​ is a high-speed, 32-channel analog voltage input module designed for the MELSEC-Q series of Programmable Logic Controllers (PLCs). This module acts as a critical interface, converting real-world analog signals from sensors (such as temperature, pressure, or speed sensors) into precise digital values that the PLC CPU can process. It is engineered for industrial automation applications requiring the monitoring of multiple points with high density and accuracy, such as in environmental monitoring systems, complex machinery, and process control plants. Its compact form factor allows for a high channel count in a limited space, making it an efficient solution for large-scale control systems.
​​2. Product Features​​
​​High Channel Density:​​ Integrates 32 analog input channels into a single module, saving space and cost in control panels.
​​High-Speed Conversion:​​ Features a fast conversion speed, allowing for rapid data acquisition from all channels.
​​Direct Connection to Sensors:​​ Supports voltage input ranges, allowing direct connection to a wide variety of analog sensors and devices.
​​High Resolution:​​ Provides 16-bit digital resolution (15 bits plus sign), ensuring highly precise measurement of analog signals.
​​Dedicated Utility Software:​​ Configuration and monitoring are simplified using GX Configurator-AD software, which allows for easy setting of parameters like sampling times and alarm values.
​​Digital Offset/Gain Adjustment:​​ Calibration can be performed via software, eliminating the need for physical potentiometers and enhancing long-term stability.
​​Intelligent Function Module:​​ The QCPU recognizes it as an intelligent module, allowing for efficient data exchange and advanced diagnostics.
​​3. Product Material & Usage​​
​​Material:​​ The module is constructed with a robust ​​PLC-grade plastic​​ housing and a ​​FR-4 glass epoxy PCB​​. The terminal block is typically made of ​​heat-resistant, self-extinguishing plastic​​ with ​​metal alloy terminals​​ to ensure reliable connections and withstand industrial environments.
​​Usage/Purpose:​​ This module is used to interface between analog sensors and a MELSEC-Q series PLC CPU. Its primary purpose is to digitize analog signals for monitoring and control applications.
​​Typical Applications:​​ Process monitoring (temperature, pressure, flow rate), test and measurement equipment, data acquisition systems, and environmental control systems.
​​4. Important Parameters (Specifications)​​
Parameter
Details
​​Product Series​​
MELSEC-Q Series
​​Module Type​​
Analog Input
​​Number of Channels​​
32 channels
​​Input Type​​
DC Voltage
​​Input Ranges​​
0 to 10V DC, ±10V DC (user-selectable)
​​Digital Output​​
16-bit binary (15 bits + sign for ±10V range)
​​Resolution​​
1/32000 (for 0-10V), 1/64000 (for ±10V, effective)
​​Accuracy​​
±0.1% of full scale (at 25°C)
​​Conversion Speed​​
80 µs/channel (2.56 ms for all 32 ch)
​​Isolation​​
Photocoupler isolation between I/O terminals and PLC, no isolation between channels
​​External Wiring​​
40-pin connector (requires a separate connector block, e.g., A6TBXY36)
​​Power Supply​​
5V DC (from main base unit) / 70 mA
​​Compatible PLC​​
MELSEC-QnA, Q Series (requires AnS/A series extension base)