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ABB DC551-CS31 is a 24 V DC CS31 slave interface for decentralized AC500 I/O, with 8 fixed digital inputs, 16 configurable digital input/output channels and an integrated 50 kHz fast counter.
| Manufacturer | ABB |
| Item number | DC551-CS31 |
| Country of Origin | Switzerland |
| Lead Time | 2-3 DAYS |
| After-Sales Support | For after-sales support, please contact May. |
| HS Code / Commodity code | Please confirm the destination before shipping. |
Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.
Yes,we offer one year warranty for all new products.
Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.
Normally 3-5 working days,some remote areas 5-7 days more.
RS-485 CS31 slave communication, 24 digital channels and integrated diagnostic displays.
DC551-CS31 combines decentralized CS31 communication with fixed and configurable 24 V DC channels, front-panel addressing, protected transistor outputs and a dedicated fast-counter function.
Reliable installation depends on the selected screw or spring terminal unit, identical hardware and software addressing, the complete channel map and the attached S500 expansion configuration.
Terminal-unit fit, channel configuration, addressing, expansion, lifecycle and quotation checks.
ABB DC551-CS31 requires TU551-CS31 for screw terminals or TU552-CS31 for spring terminals. Confirm the terminal-base order code and wiring method before ordering the electronics module.
The C8-C23 channels are defined by the user program as inputs, transistor outputs or re-readable combined I/O. ABB states that DC551-CS31 does not store the configuration data itself.
Set the two front rotary switches and the software parameter to the same address. ABB DC551-CS31 reads the switch position only during initialization after power-on, so an online switch change has no immediate effect.
Yes. ABB permits up to seven attached S500 I/O modules, but the usable combination must remain within the documented CS31 digital, analog and logical bus-module limits.
ABB lists standard order code 1SAP220500R0001 and XC order code 1SAP420500R0001 as Active. The XC model is an environmental version, not a software-selectable conversion; verify approvals, terminal unit and installed conditions before substitution.
Request ABB data sheet 3ADR010006 and provide order code 1SAP220500R0001, nameplate photos, terminal unit, CS31 address, channel map, fast-counter mode, attached I/O, quantity, destination and delivery date.
Documentation, response and long-term automation spare-parts assistance.
Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.
Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.
We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.
We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.
We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.
Sincere Cooperation, Long-Term Trust
A Russian customer urgently needed a replacement for a discontinued automation component. After reviewing the product label, technical parameters, and application details, our engineers recommended a compatible alternative and provided photos and test videos before shipment. The alternative performed well, enhancing the customer's confidence in our technical capabilities and leading to multiple repeat orders.
An Indian customer still had doubts after initial online communication with us, so they visited our company in person for a face-to-face meeting and product inspection. This visit increased the customer's trust and led to the successful placement of their first order. Over the next few years, we completed multiple orders and established a stable, long-term partnership.
A Venezuelan customer needed a specific automation component and compared products and services from several suppliers online. After nearly three weeks of careful consideration, our sincere communication, professional service, and reliable product quality won the customer's trust. After receiving the product and using it for several weeks without any problems, the customer gave us positive feedback and subsequently placed multiple orders.
A varied reference list of specialist automation brands and model families.
Include the exact ABB order code, standard/XC requirement, terminal unit, CS31 address, channel and counter map, expansion modules, quantity, destination and required delivery date.
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