Yokogawa ALP121-S01 PROFIBUS Module for CENTUM VP

Product Description

Product Overview

Yokogawa ALP121-S01 is a PROFIBUS-DP communication module designed to operate as a PROFIBUS-DP master within Yokogawa CENTUM VP systems. The module enables deterministic cyclic data exchange between Field Control Units and PROFIBUS-DP slave devices, supporting high-speed and reliable fieldbus communication.

This standard-type module with ISA Standard G3 coating is suitable for harsh industrial environments and is commonly deployed in systems requiring stable integration of remote I/O, PLCs, and intelligent field devices.

System Compatibility

ALP121-S01 is designed for installation in:

• Field Control Units: AFV30, AFV40

• ESB Bus Node Units: ANB10

• Optical ESB Bus Node Units: ANB11

The module communicates with PROFIBUS-DP slave devices via standard PROFIBUS cabling and supports extended architectures through DP/PA couplers.

Communication Functionality

As a PROFIBUS-DP master, ALP121-S01 supports:

• PROFIBUS remote I/O stations

• PLCs and intelligent controllers

• DP/PA couplers for PROFIBUS-PA device access

HART and 4–20 mA field devices can be integrated indirectly through PROFIBUS remote I/O, enabling unified control and monitoring within the CENTUM VP environment.

Technical Specifications

PROFIBUS Interface

• Communication Protocol: PROFIBUS-DP (Master)

• Physical Layer: EIA-RS-485 compliant

• Transmission Speed: 9.6 kbps to 12 Mbps

• Maximum Transmission Distance

• Up to 1.2 km at 9.6 kbps

• Number of Ports: 1

Connection & Isolation

• Connector Type: D-sub 9-pin (female)

• Signal Isolation: Galvanic isolation between system and field

Electrical Characteristics

• Maximum Current Consumption: 0.7 A

Environmental & Mechanical

• Module Type: Plug-in communication module

• Weight: 0.3 kg

• Shipping Weight:2 kg

• ISA Standard: G3 coating (S01 option)