X11SNLR-3000PM Control Interface Board Unit

Module Feature

X11SNLR-3000PM is an industrial printed circuit board assembly for distributed control and PLC cabinet.

It integrates signal conditioning, signal isolation and bus conversion circuit to collect field sensor and actuator signals. It adopts gold finger hot-swap design, supports 24V DC power supply, widely used for renovation and spare replacement of old process control cabinets in chemical, power and metallurgical industries.

Working principle

Field analog and discrete signals are filtered and isolated by the onboard circuit.

The processed signals are transmitted to the main controller through the backplane bus. The isolation circuit suppresses electromagnetic interference generated by high-power equipment on site and improves signal stability.

Onboard components

Signal conditioning chips, isolation module, backplane gold finger connector, SMD electronic components, onboard LED indicator array.

LED indicators

Onboard LEDs show power supply status, running state and fault alarm.

Hardware self‑diagnosis

The matched controller continuously detects power supply abnormality, bus contact loss and signal channel fault, and the fault information can be viewed through the upper configuration software.

Programming software

Vendor dedicated configuration tool, used for signal channel calibration and fault information query.

Electrical & Process Parameters

Model:X11SNLR-3000PM Brand:Unspecified Device type:Industrial control PCB assembly Supply voltage:24V DC Function:Field instrument signal acquisition and transmission for industrial process control

Mechanical & Structure

Mounting:Plug-in installation on system chassis backplane

Protection class:IP20

Housing:PCB assembly with metal shielding frame

Environmental

Operating temperature:0℃ ~ +60℃

Storage temperature:-40℃ ~ +85℃

Ambient humidity:5~95% non‑condensing

Certification:CE

Status:Original industrial automation spare

Installation

Cut off cabinet power before replacement, insert the board into the matched slot and lock the fasteners.

Wire field signal cables according to the schematic drawing, and verify bus communication and signal sampling function after power on.

Interface

Backplane bus connector, field signal wiring terminal.

Diagnostic

Board communication offline: Damaged backplane pin or loose board locking.

Signal reading abnormal: Isolation circuit damage or reversed wiring polarity.

No LED light: Missing 24V DC power supply.

Product Brief

X11SNLR-3000PM industrial PCB assembly, signal interface I/O board for legacy DCS and PLC cabinet maintenance replacement.