The Yokogawa SR1220E2 is a high-performance central processing module for the STARDOM FCN (Field Control Node) platform. This unit functions as the main controller for autonomous field control and fast logic sequencing applications. It executes user-defined programs with deterministic real-time performance while maintaining robust communication with I/O modules.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Central Processing Module for STARDOM FCN |
| CPU | 32-bit RISC processor, 100 MHz |
| Memory (RAM) | 4 MB (program execution) |
| Memory (Flash) | 2 MB (program/data storage) |
| Memory (SRAM) | 1 MB (retentive data) |
| Battery | Lithium battery for SRAM retention |
| SD Card Slot | For program backup and data logging |
| Serial Ports | 2 x RS-232 |
| Ethernet Port | 1 x 10BASE-T |
| Power Consumption | 2.8 W typical |
| Dimensions (W x H x D) | 32 mm x 178 mm x 142 mm |
| Weight | Approx. 0.5 kg |
| Operating Temperature | 0°C to 55°C |
| Protection Rating | IP20 |
Memory Architecture and Data Retention
The Yokogawa SR1220E2 employs a robust memory architecture for reliable program execution. It uses 4 MB of RAM for dynamic processing and 2 MB of flash for permanent program storage . The module also includes 1 MB of battery-backed SRAM for retentive data that survives power cycles . The lithium battery maintains this data for extended periods, ensuring process continuity . Additionally, an SD card slot allows program backup, firmware updates, and data logging .
Communication and Connectivity
This central processing module offers flexible connectivity options for system integration. It provides two RS-232 serial ports for local configuration and device communication . The 10BASE-T Ethernet port connects to the FCN network for seamless integration . Moreover, the module’s SD card slot simplifies file transfers and program backups . This connectivity makes it suitable for both standalone and network-based applications.
System Integration and Applications
The Yokogawa SR1220E2 integrates into the STARDOM FCN platform as the primary processing unit . It supports up to 2500 function blocks per module, handling complex control strategies . Typical applications include autonomous field control, fast logic sequencing, and small-scale process automation . Its compact design and low power consumption make it ideal for distributed field control in power generation, water treatment, and manufacturing plants .
Details
| Weight | 0.5 kg |
|---|---|
| Dimensions | 32 × 178 × 142 mm |
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