Integrator's field note on the Q68ADV
The Q68ADV is an 8-channel analog input module for the Mitsubishi Q-series programmable controller rack. Each channel accepts ±10 V DC (input impedance 1 MΩ) and digitises it to a 16-bit signed binary value: normal resolution mode spans –4096 to 4095, high-resolution mode gives –12288 to 12287 or –16384 to 16383 depending on the setting. Conversion speed runs 80 µs per channel, but when temperature drift is present the module adds 160 µs regardless of channel count — account for that in your scan-time budget if the environment sees thermal gradients. Wiring uses an 18-point terminal block; wire size 0.3 to 0.75 mm² with a solderless terminal R1.25-3 (no sleeve).