Mitsubishi Q68DAI PLC Module Q68DAI

Description:

The Mitsubishi Q68DAI PLC module is a digital analog input interface used in MELSEC‑Q series industrial automation systems to accept and convert analog signals from field sensors into PLC logic data. It is commonly installed in control cabinets and PLC racks to interface process signals such as temperature, pressure, and flow. Maintenance teams and system integrators use this module for distributed I/O expansion, process monitoring, and replacement of failed or outdated analog input modules.

Applications:

The Mitsubishi Q68DAI module is widely used in manufacturing and process control environments requiring precise analog data acquisition. It is commonly found in HVAC systems, process lines, chemical and water treatment plants, batching systems, and material handling equipment where sensor feedback (voltage/current) is required to feed PLC logic for monitoring, control, and regulation tasks.

Technical Specifications:

• Model: Q68DAI
• Module type: Analog input interface for PLC
• Number of inputs: 8 analog channels (typical)
• Input signal types: Voltage/current (model dependent, e.g., 0–10 V, 4–20 mA)
• Resolution: High‑resolution A/D conversion (platform dependent)
• Accuracy: Industrial analog input accuracy (platform dependent)
• Input impedance: Specified per signal type
• Connection: Field terminal connector
• Mounting: MELSEC‑Q rack slot
• Compatibility: Mitsubishi MELSEC‑Q PLC family
• Indicators: Status LEDs for module health
• Protection: Overvoltage/transient protection (platform dependent)
• Operating temperature: Industrial range
• Designed for: Acquisition of analog process signals into PLC

Common Replacements:

• Mitsubishi Q64DAI (alternate analog input module)
• Omron CJ1W‑AD081 analog input module
• Allen‑Bradley 1734‑IE8 analog input module