Model Interpretation

BADU = Analog Input - Analog Input module; 202 = 8-channel bipolar input specification; 201 = single-ended, 204 = multi-range general-purpose, 205 = dedicated for thermal resistance, 206 = dedicated for thermocouples. Technical Specifications

Channel Specifications: 8-channel group isolated analog input, single-slot Eurocard slot

Input Range: ±5VDC, ±10VDC, 4-20mA, 0-5V, 0-10V, compatible with positive and negative bidirectional signals

AD Accuracy: 12-bit analog-to-digital conversion, full-scale comprehensive accuracy ±0.2% FS

Sampling Rate: Single channel 25ms, full-channel polling 200ms

Power Supply Parameters: Backplane 5VDC power supply, power consumption 330mA; external DC24V power supply for sensors

Dimensions: 58 (W) × 267 (H) × 165 (D) mm, net weight 1.5kg

Environmental Conditions: Operating temperature 0-60℃, storage temperature -40-85℃, humidity < 80% RH without condensation, IP20 cabinet installation

Interface and Matching Base

Universal wiring base AS-8535-000, compatible with BADU-201/204, B883/B884/B885 full series module bases, plug-in wiring terminals.

Core Functions

8-way bidirectional analog signal conversion to PLC register data; 4-20mA loop open circuit fault detection and alarm; panel power, fault, channel status LED indicators; channel grouping electrical isolation to suppress inverter interference; hardware potentiometer switch to single/dual polarity range, no need for software configuration. Applicable scenarios

Frequency conversion feedback of positive and negative voltage acquisition, hydraulic servo positive and negative displacement sensors, weighing bidirectional millivolt signals, monitoring of positive and negative deviations of metallurgical roll gap, positive and negative temperature transmitters for refrigeration system acquisition.

Usage and Maintenance

Plug directly into Modicon Compact standard I/O slot; abnormal negative value acquisition requires priority verification of sensor wiring polarity; BADU-201 cannot be directly interchanged; the hardware input circuits are different; can be mixed with motion control card, temperature control module, and digital IO card on the same chassis.