Description
Product Overview
The ALR121-S51 S1 Communication Module by Yokogawa supports fault-tolerant networking in distributed control systems. Its dual-port architecture enables seamless redundancy, automatically switching to standby units during communication failures. The ALR121-S51 S1 maintains synchronized data across modules with configurable refresh cycles for precise alignment.
This module withstands harsh industrial conditions and supports multiple field protocols. Its intelligent design enables millisecond-level failover transitions, ensuring uninterrupted data flow. Engineers rely on the ALR121-S51 S1 for its rugged build, diagnostic capabilities, and compatibility with Yokogawa’s Smart Control Station (SCS).
Technical Specifications
| Specification |
Details |
| Model Number |
ALR121-S51 S1 |
| Manufacturer |
Yokogawa |
| Module Type |
Communication Module |
| System Compatibility |
DCS |
| Communication |
Ethernet Router, Dual-Port |
| Failover Speed |
Millisecond-level |
| Data Sync |
Configurable Refresh Cycles |
| Field Protocols |
Multiple Supported |
| Dimensions |
14 × 13 × 3.2 cm |
| Weight |
0.3 kg |
| HS Code |
8537101190 |
| MOQ |
1 |
| Origin |
Japan |
| Condition |
Brand New |
| Availability |
In Stock |
Key Features
-
Dual-port architecture enables automatic failover and redundancy.
-
Configurable refresh cycles ensure synchronized data across active and standby modules.
-
Rugged design withstands industrial environments and supports global standards.
-
Compatible with Yokogawa Smart Control Station for dynamic switching.
-
Diagnostic features enhance system reliability and reduce downtime.
Applications & Compatibility
The ALR121-S51 S1 integrates with Yokogawa’s CENTUM VP and other DCS platforms. It supports critical infrastructure in energy, chemical, and process industries. Its redundant communication design suits high-availability systems requiring continuous operation.
