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| Place of Origin: | Germany |
| Brand Name: | ABB |
| Certification: | COO & COC |
| Model Number: | DC551-CS31 |
DC551-CS31 1SAP220500R0001 ABB Distributed I/O module Compact ·High reliability
ABB DC551-CS31 (Model: 1SAP220500R0001) is a distributed I/O master module specially designed for ABB AC 500 series programmable logic controller (PLC) systems and is a core component of the CS31 bus system. This module connects remote I/O slave stations (such as DC541, DC552, etc.) via the CS31 communication bus, achieving long-distance and highly reliable signal acquisition and control. The maximum communication distance can reach 1200 meters, and the number of nodes supported is up to 31 slave stations.
The DC551-CS31 is widely used in mechanical manufacturing, water treatment, building automation, material handling, and small and medium-sized process control systems. It is particularly suitable for application scenarios where I/O points need to be distributed and the complexity of the main control cabinet wiring needs to be reduced.
Product Overview: ABB DC551-CS31 (1SAP220500R0001)
| ABB Order Code | DC551-CS31 |
| Manufacturer Part Number | 1SAP220500R0001 |
| Product Family | ABB AC 500 Compact PLC System |
| CPU Type | Main processor with integrated CS31 master interface |
| Processor Performance | Fast scan cycle; optimized for real-time logic, motion, and process control |
| User Program Memory | 512 kB (for program, data, and configuration) |
| Optional Ethernet | Can be expanded via plug-in communication modules (e.g., TB521 ETH adapter) |
| Programming Environment | Fully supported in ABB Automation Builder (formerly Control Builder Plus) using IEC 61131-3 languages (LD, FBD, ST, SFC, IL) |
| Operating Temperature | 0°C to +55°C |
| Certifications | CE, UL, CSA, IEC 61131-2, IEC 61000-6-2/4 (EMC) |
Product Images
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