ALP111-S00 | Yokogawa PROFIBUS-DP Communication Module

Product Overview

The Yokogawa ALP111-S00 functions as a high-performance PROFIBUS-DP Communication Module designed for the CENTUM series control systems. It establishes a robust digital link between the Distributed Control System (DCS) and field devices such as motor starters, actuators, and remote I/O. We offer this module as 100% Brand New and Original, ensuring seamless integration and factory-standard data throughput for your automated processes.

Part Number Breakdown

The ALP111 series follows Yokogawa's standard configuration logic:

• ALP111: PROFIBUS-DP Communication Module (Standard 1-Port)

• -S: Standard Type interface

• 0: Always 0 (Standard specification)

• 0: Basic type without additional specialized options

Technical Specifications

The ALP111-S00 provides a high-speed, isolated communication path for industrial fieldbus applications.

Engineering Advantages

• Superior Signal Isolation: The ALP111-S00 features isolated circuitry between the communication bus and the internal system logic. This barrier blocks high-voltage surges and ground loops common in industrial environments, preventing damage to the central control station.

• Flexible Speed Adaptation: The module automatically synchronizes with the bus speed, supporting a wide range from 9600 bps up to 12 Mbps. This flexibility allows for long-distance segments at lower speeds or high-speed cyclical data exchange for time-critical control loops.

• Shielded Transmission Route: Designed for shielded twisted-pair cabling, the module effectively rejects electromagnetic interference (EMI). This ensures signal integrity even when routing cables through trays containing high-power motor leads.

• Integrated Diagnostics: The dedicated RS-232C maintenance port allows for direct local configuration and troubleshooting. Engineers can verify bus status and device addressing without interrupting the primary PROFIBUS traffic.

FAQs

Does the ALP111-S00 support redundancy?

Yes. In a CENTUM VP or CS 3000 environment, you can install a pair of ALP111 modules in a dual-redundant configuration. This setup ensures that if one module fails, the backup unit takes over communication instantly to prevent process downtime.

What type of connector do I need for the PROFIBUS-DP port?

The module utilizes a standard D-sub 9-pin female connector. You should use a high-quality PROFIBUS-specific plug (typically with a built-in termination resistor) to ensure reliable RS-485 signal levels.

How does the transmission distance change with speed?

While the module reaches up to 1.2 km at 9600 bps, the maximum distance decreases as speed increases. For instance, at 12 Mbps, the segment length typically limits to 100 meters without repeaters. Always consult your network design plan for specific cable limitations.

Is this ALP111-S00 unit factory sealed?

Absolutely. We supply only 100% Brand New Yokogawa hardware. Every module ships in its original factory anti-static packaging, complete with the official manufacturer serial number to guarantee authenticity and a full service life.