Technical Specifications:​ 24 VDC rack or backplane supply; 16-channel digital input configuration for the standard high-density revision; 24 VDC wetting compatible with sink or source field wiring per common arrangement; input current approximately 5–10 mA per channel where specified; optical or galvanic isolation between field inputs and logic; per-channel LEDs; operating temperature −20–60 °C for industrial process revisions; IP20 rack housing.

Functional Features:​ Multi-stage hardware filtering for contact bounce and electrical noise; software debounce and SOE time-stamping where enabled in engineering configuration; wire-break and abnormal-signal diagnostics; native Maxnet or DNA I/O bus communication; hot-swap support in compatible racks.

Functional Features:​ Multi-stage hardware filtering for contact bounce and electrical noise; software debounce and SOE time-stamping where enabled in engineering configuration; wire-break and abnormal-signal diagnostics; native Maxnet or DNA I/O bus communication; hot-swap support in compatible racks.

Application Scenarios:​ Equipment start-stop confirmation, valve open/closed feedback, motor running and fault contacts, safety gate interlocks, conveyor zero-speed and proximity detection, and pulp, power, water and chemical process discrete monitoring.

Performance Parameters:​ Input turn-on and turn-off thresholds follow the rack’s 24 VDC DI standard; response time is adjustable through filter constants; isolation rating and MTBF are taken from the specific revision hardware manual; LED indications provide immediate channel and communication status.

Material Composition:​ Industrial multilayer PCB, optoisolators or isolated front-end ICs, flame-retardant plastic front bezel, gold- or tin-plated backplane connector, and screw or spring terminal block.

Structural Characteristics:​ Single-slot rack module with rear backplane connector, front terminal access, isolated input groups, diagnostic LED array, and EMC-segregated input and logic sections.

Working Principle:​ Field contact or sensor applies 24 VDC wetting through the input resistor and isolation stage. The conditioned signal passes hardware filtering and optoisolation, is scanned by the input logic, and is transmitted over the DNA backplane as discrete status data to the controller.

Installation Requirements:​ Mount in the assigned DNA/MaxDNA rack; use clean 24 VDC wetting supply with proper fusing per input group; separate input cables from output, power and VFD cables; shield long sensor runs and ground at the defined point; verify sink or source wiring common before energization.

Usage Notes:​ Confirm 16-channel digital-input assignment from the nameplate because the same family may be documented in some sources as analog or controller hardware; avoid wetting-voltage loss that can report all inputs off; test debounce settings with the actual field devices; replace with matching hardware and firmware revision; perform wire-break test after commissioning.