Product Description

Subsystem Connectivity Overview

The ACM11 (Model: ACM11) is a versatile serial communication module designed to bridge third-party subsystems with the Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). This module facilitates bi-directional data exchange between the Field Control Station (FCS) and external devices such as Programmable Logic Controllers (PLCs), gas chromatographs, and power monitoring systems. The ACM11 (Part Number: ACM11-S2) maps external register data into the system's PI/O image area via the RIO bus, allowing for seamless integration. By offloading complex protocol handling for RS-232C, RS-422, and RS-485 interfaces, the module ensures the main FCS processor maintains peak computational efficiency for critical control loops.

Detailed Technical Specifications

The ACM11 (ACM11-S2) is engineered for deterministic data throughput in electronically harsh industrial environments.

• Manufacturer: Yokogawa Electric Corporation

• Model Designation: ACM11

• Suffix Code: S2 (Sealed / Corrosion-Resistant NSS compliant)

• Product Type: Subsystem Communication Module

• System Bus Interface: RIO Bus (Remote I/O Bus)

• Physical Interfaces: RS-232C (point-to-point) or RS-422/RS-485 (multi-drop)

• Transmission Mode: Asynchronous or Synchronous (protocol dependent)

• Baud Rate Range: Up to 38.4 kbps (Software configurable)

• Maximum Cable Length: RS-232C: 15m; RS-485: 1200m

• Isolation Technology: Galvanic isolation between serial signals and system bus

• Diagnostics: Module health status, communication error counters, and LED indicators

• Power Supply: Internal via RIO rack backplane (12V/24V DC)

• Mounting: Standard I/O Nest / FIO Rack Mount

• Environmental Tolerance: –20 °C to +60 °C (Operating range)

• Net Weight: 0.25 kg (Module only)