AS-B885-100 | Schneider Modicon 800 Four-axis Independent Motion Control Intelligent Module
June 03, 2026

AS-B885-100 | Schneider Modicon 800 Four-axis Independent Motion Control Intelligent Module

Product Introduction The Schneider Modicon 800 series independent four-axis servo/stepper motion intelligent control card is compatible with the B885 series hardware base. It is equipped with a dedicated motion computing processor and can independently complete interpolation and positioning calculations without relying on the main CPU of the PLC. Different from the 001/002 serial communication models, it is a dedicated multi-axis positioning accessory for the Modicon 984 rack, a discontinued spare part from the original factory, and a core control card for old equipment in the packaging, textile, and machine tool industries.

Description

Model Interpretation

B885 = General Series of Intelligent Programmable Module; 100 = Four-axis Motion Control Version, 001 Single Serial Port, 002 Dual Serial Port, 100 Four-axis Positioning, hardware and firmware distinguish different functions. Technical Specifications

Axis control specifications: 4-axis independent closed-loop positioning, supporting linear / circular interpolation, point positioning, speed control, with the maximum single-axis pulse rate of 500kHz for differential encoding input.

Encoder interface: 4 channels of 5V differential A/B/Z phase encoder feedback, each axis equipped with forward / reverse limit switch and origin switch DI.

Pulse output: Open collector pulse direction output, compatible with stepper drivers and pulse-type servo.

Backplane resources: Occupies 8 input registers + 8 output registers of PLC, used for interaction of positioning parameters and status.

Electrical power consumption: 5VDC @ 520mA, standard single-slot chassis installation.

Dimensions: 58 (W) × 267 (H) × 216 (D) mm, net weight 1.5kg.

Environmental parameters: Operating temperature 0~60℃, storage temperature -40~85℃, humidity ≤ 80% RH without condensation, IP20 cabinet built-in.

Interface and compatible base

Universal wiring base AS-8535-000, fully compatible with B883 temperature measurement, B884-PID, B885-001/002 base, cannot use B883-200/201 dedicated terminal block.

Core functions

Local hardware independently executes motion programs, not occupying PLC scanning cycle; supports four-axis linkage interpolation, electronic gear synchronization, origin return to zero, soft limit protection; panel operation / fault / axis status LED indicator; the upper-level PLC only issues target position, speed parameters, the module autonomously closed-loop regulates; BASIC motion instruction programming, program stored in onboard EEPROM and saved when power is off. Applicable scenarios

Packaging machinery multi-station synchronization, textile winding equipment four-axis linkage, old model CNC feeding mechanism, material transplant assembly line, extruder traction shaft synchronous control.

Operation and Maintenance

Plug directly into the standard I/O slot of Modicon 800; prioritize checking the wiring and power supply of the encoder; troubleshoot lost pulses by checking the pulse line shielding and grounding; repair faults of a single axis separately, and inspect the corresponding terminal circuit; the frame can accommodate the entire series of special IO modules B883, B884, and B885.


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