Model Interpretation

B882 = Special Intelligent I/O Category; 239 = 2-channel high-speed counting, 0-30kHz pulse input, built-in 6 input and 6 output auxiliary switch points, 24VDC level signal specification. The suffix "0XX" represents ordinary digital output cards, and "2XX" represents intelligent counting card units. Technical Specifications

Counting channels: 2 independent counters, orthogonal / single-phase pulses selectable

Pulse frequency: Maximum 30kHz in high frequency mode, 350Hz in low frequency mode; Minimum pulse width in high frequency 13μs, 1.3μs in low frequency

Auxiliary points: 6 24VDC source-type digital inputs, 6 24VDC transistor-type outputs

Input level: 0~32VDC compatible with NPN/PNP encoder signals, 32VDC single-channel input current 8.1mA

Backplane power consumption: 5VDC @ 188mA, no 4.3V loop power consumption, module has no built-in fuse

Form factor: Single-slot standard 800 rack size, net weight approximately 1.3kg, 51×203×280mm

Environmental conditions: Operation 0~60℃, storage - 40~85℃, humidity < 80% RH without condensation, IP20 protection

Interface and matching base

Universal original screw terminal base: AS-8535-000, compatible with B875 analog quantity and B882 full series bases.

Core functions

Two counters are independently configured, supporting pulse counting, speed conversion, length accumulation, preset value trigger output; 6 DI are used as counter reset, start/stop, and gate signals; 6 DO automatically output contact when the counter reaches the set value; All parameters are configured through PLC software, no hardware dip switch required; Panel corresponds to COUNTER1/COUNTER2 operation indicator lights. Applicable scenarios

Packaging machinery: fixed-length cutting, conveyor belt speedometer measurement in meters; textile equipment: spindle positioning; assembly line: encoder position collection; chemical batching and quantitative measurement system.

Operation and Maintenance

Plug directly into the universal I/O slot of the Modicon 800 rack; for encoder pulse abnormalities, prioritize checking the shielding cable and power supply voltage; for inaccurate counting, distinguish between high and low frequency gears; for auxiliary outputs with solenoid valves, it is recommended to connect a rectifier diode externally; the same rack can accommodate B875 series analog cards and B882-032 discrete cards.