YOKOGAWA ALP111-S00 PROFIBUS – DP Communication Module

Description

The YOKOGAWA ALP111-S00 PROFIBUS-DP is a communication module designed to act as a PROFIBUS-DP master device, facilitating data exchange between Yokogawa distributed control systems and PROFIBUS-DP slave devices such as remote I/O and PLCs. It is typically used in industrial automation systems involving Yokogawa field control units (AFV series), ESB bus node units (ANB10 series), and optical ESB bus nodes (ANB11 series). This module enables highly reliable, fast, and isolated communication over PROFIBUS networks, making it essential in applications where real-time data exchange and system robustness are critical, including manufacturing plants, oil and gas, power generation, and process industries.

The ALP111-S00 communication module supports data transmission speeds ranging from 9600 bps up to 12 Mbps with a maximum communication distance of 1.2 km per segment at the lowest speed settings. It conforms to the EIA-RS-485 communication standard and features full signal isolation to reduce electrical noise interference and protect the control system. The module comes equipped with one PROFIBUS communication port (female D-sub 9-pin) and a maintenance port (male D-sub 9-pin) conforming to RS-232C standards for diagnostics and configuration. It supports redundancy by allowing installation of dual modules for fault-tolerant operation. The module can handle up to 1000 words of I/O data per unit and supports up to 200 communication definitions, offering flexibility for complex control architectures.

Key features include compliance with PROFIBUS DP-V0 standards through certification by the PROFIBUS Nutzerorganisation, support within Yokogawa’s CENTUM VP and CS 3000 distributed control systems, and engineering ease through dedicated configuration tools like SyCon-PB/YOKO. It integrates seamlessly within Yokogawa’s communication infrastructure, ensuring data from PROFIBUS devices is processed alongside native analog and digital I/O signals without requiring additional interfaces, streamlining system engineering.

Related modules include other communication modules like ALE111 and ALR111 for different network protocols, digital and analog I/O modules for expanding field device interfacing, and various automation controllers for integrated plant control. The ALP111 supports PROFIBUS-DP slave devices and integrates tightly with Yokogawa’s system engineering tools to ensure efficient communication configuration and management.

During installation, attention should be paid to proper cable shielding and grounding to avoid interference and signal degradation, following PROFIBUS wiring standards (IEC 61158-2/EN 50170). Connecting and terminating cables correctly is crucial for reliable communication. Firmware updates and network diagnostics should be performed with Yokogawa tools to maintain optimum module performance and system stability.