Yokogawa ALP121-S00 PROFIBUS-DP Communication Module

Technical Specifications

Model:ALP121-S00

Brand:Yokogawa

Communication port:1 PROFIBUS-DP port

Connector:DB9

Protocol:PROFIBUS-DP (Master)

Baud rate:9.6kbps ~ 12Mbps

Max segment distance:1200m @9.6kbps

Max connected slave devices:125 nodes

I/O data capacity:1000 words

Isolation:1500V AC isolation between field bus and internal circuit

Operating temperature:-10~+60℃

Relative humidity:5~95% non-condensing

Weight:0.31kg

Certification:CE,PROFIBUS certified

System compatibility

Designed for Yokogawa CENTUM VP DCS FIO and N-IO FCS station,used to connect PROFIBUS-DP slave devices such as remote I/O,variable frequency drives,valve controllers and online analyzers,widely used in petrochemical,power,chemical refining process control.

Function

ALP121-S00 is FIO/N-IO PROFIBUS-DP master communication module.It establishes PROFIBUS DP bus network,realizes bidirectional data exchange between FCS controller and PROFIBUS slave field devices.Configure bus parameters,slave station list via CENTUM VP engineering software.

Installation

Install on FCS node backplane slot,connect PROFIBUS bus cable via DB9 connector,set baud rate and slave parameters by CENTUM VP engineering software.Hot swap supported.

Interface

‑PROFIBUS-DP DB9 field bus connector

‑Internal ESB bus backplane connector

‑LED indicators for run,communication and fault status

Circuit feature

Galvanic isolation design for PROFIBUS port,anti-electromagnetic interference,built-in bus self-diagnosis,stable bus communication for industrial field.

Feature

ALP121-S00 belongs to Yokogawa CENTUM VP FIO / N-IO series PROFIBUS-DP communication module.Common faults:bus terminal resistor mismatch,cable interference,communication chip damage.Confirm firmware before replacement.

Diagnostic

Bus short,communication timeout,slave loss or module hardware fault triggers alarm and upload diagnostic information to DCS controller.

Built‑in function

Realize PROFIBUS-DP bus data exchange between DCS FCS and third-party PROFIBUS slave equipment,used for industrial DCS spare replacement.

Product Brief

ALP121-S00 is Yokogawa CENTUM VP FIO/N-IO single port PROFIBUS-DP master communication module with DB9 interface,supports baud rate up to 12Mbps.Check system hardware compatibility before ordering.ESD anti-static protection required during installation.