KEBA SI485/422 Serial Communication Module

Technical Specifications

Model:SI485/422

Brand:KEBA

Product type:Rack mount serial communication module

Power supply:24 Vdc,19.2~28.8V tolerance,max 0.6A

Control function:RS485/RS422 serial data transmission,baud rate configuration,bus signal isolation,hardware self-diagnosis,fault indication

Communication:Kemro K2 backplane bus

Mounting:Plug-in rack slot installation

Operating temperature:-10~55℃

Storage temperature:-20~70℃

Relative humidity:5~95% non-condensing

Max working altitude:2000m

Weight:0.30kg

Dimension:260mm64mm25mm

Certification:CE

Protection class:IP20

System compatibility

SI485/422 belongs to KEBA Kemro K2 control system family,matched with KEMRO-BUS-8 backplane,CPU modules and field peripheral devices.Widely applied in injection molding,die-casting machine control cabinets.This is a discontinued legacy serial communication module for equipment maintenance spare replacement.

Function

SI485/422 serves as KEBA rack serial communication module.It provides switchable RS485 and RS422 differential communication interfaces to realize data exchange between main controller and external peripherals.It supports half-duplex RS485 multi-point bus connection and full-duplex RS422 point-to-point transmission.Baud rate can be configured by software,built-in bus terminal resistance switch.It adopts galvanic isolation to suppress common-mode interference on long-distance transmission lines.It transmits communication status and fault information to CPU via backplane bus.It acts as serial data exchange component for Kemro K2 modular control system.

Installation

Insert SI485/422 into the designated rack slot and lock the latch.Complete field communication cable wiring according to wiring drawing.Set DIP switch for RS485/RS422 mode and terminal resistor.Check 24V power polarity and cabinet grounding before power-on.

Interface

‑24Vdc power input terminal

‑RS485/RS422 signal terminal block

‑Kemro K2 backplane gold finger connector

‑Communication status and fault LED indicator

Circuit feature

Built-in ESD and surge suppression circuit,differential signal transmission,galvanic isolation design,strong anti-interference performance for industrial cabinet environment.

Feature

SI485/422 is obsolete KEBA series spare part.Typical failures include communication dropout,data garbled,unstable transmission,connector oxidation.Check module circuit,serial signal channels and gold fingers before replacement.This module must match Kemro K2 series rack system,direct substitution without inspection is not recommended.

Diagnostic

When bus short-circuit,signal attenuation or internal hardware fault occurs,the module triggers protection and lights up fault LED.

Built‑in function:RS485/RS422 serial communication,baud rate configuration,bus signal isolation,status monitoring,self-diagnosis and fault alarm,used as KEBA Kemro K2 series serial communication module spare replacement.

Product Brief

SI485/422 is KEBA old industrial rack serial communication module for injection molding and die-casting machine automation equipment.Confirm compatibility with Kemro K2 backplane before ordering.ESD protection required during handling and installation.