FAQs Page - decowellauto.com

Purchasing & Model Selection

How do I choose the right IO module for my application?

We recommend selecting by protocol, signal type, number of channels, and mounting method. Our selection guide and engineers are ready to assist you.

Do you support project-based selection and PLC pairing?

Yes, we provide model matching based on your system requirements and support PLC–IO module integration.

Can I mix different signal types (DI/DO/AI/AO) in one system?

Yes, we support flexible combinations and custom hybrid modules.

Do you offer a selection guide or compatibility chart?

Yes, detailed materials are available on our Selection Guide page.

What should I consider when choosing between IP20 and IP67 modules?

IP20 is ideal for cabinet use, while IP67 suits harsh industrial environments.

Can you provide product selection suggestions?

Yes, our engineers can assist with remote consultation and recommendations.

What types of signal modules do you provide?

We offer DI/DO, AI/AO, thermocouple, relay, encoder, and more.

Can IO modules be expanded?

Yes, our modules can be cascaded up to 32 extensions.

What mounting methods are available?

Supports DIN rail, screw mount, and through-hole installation.

Do you provide wiring diagrams or terminal definitions?

Yes, all models come with detailed wiring instructions and pinouts.

Pricing & Payment

Can I get a detailed quotation?

Please send us the model number and quantity. We’ll reply with a formal quote within 24 hours.

Do you offer discounts for bulk orders?

Yes, we offer tiered pricing for OEMs, bulk orders, and long-term partners.

What payment methods do you accept?

We accept T/T, PayPal, Western Union, and L/C for large orders.

Are shipping fees included in your pricing?

Prices are usually EXW or FOB. CIF quotes are available upon request.

What currencies do you accept?

We accept USD, EUR, CNY and more.

Can we sign an annual purchase agreement?

Yes, annual agreements are available for long-term clients.

Are there extra fees for OEM/ODM?

Depends on the scope. Logo/labeling is often free; major changes incur cost.

What are your payment terms?

Usually 30% in advance and 70% before shipment. Negotiable.

Does your pricing include technical support?

Yes, standard tech support is included.

Shipping & Delivery

What is your lead time for standard products?

Standard models ship within 3–7 working days; custom items take 10–25 days.

Can you ship worldwide?

Yes, we ship globally via DHL, FedEx, UPS, and ocean freight.

Do you support overseas warehousing or distribution?

Yes, available for large clients and authorized distributors.

Do you offer sample delivery?

Yes, samples are available for qualified projects.

Is your packaging export-compliant?

Yes, we use shock- and moisture-resistant packaging.

Can you arrange partial or batch delivery?

Yes, delivery can be staged as per project schedule.

After-Sales Service

What after-sales services do you provide?

We offer documentation, remote support, replacement parts, and more.

What is your warranty policy?

All products come with a 1-year warranty.

Do you offer remote technical support or configuration help?

Yes, we support online debugging and video setup guidance.

Where can I get manuals and configuration videos?

Visit our User Manual page to download or view online.

Do you offer system compatibility testing?

Yes, we offer sample testing for system validation.

Which configuration software do you support?

We support Codesys, STEP7, TIA Portal, GX Works, and more.

How fast is your after-sales response time?

We respond within 12 hours and resolve most issues within 24 hours.

Do you provide a hotline or dedicated support?

Yes, a dedicated account manager and hotline are available.

Do you offer training for customers?

Yes, we provide remote training and video tutorials.

Factory & Capacity

Are you a manufacturer or a trading company?

We are a direct manufacturer with our own factory, offering OEM/ODM services.

What is your monthly production capacity for IO modules?

We produce over 50,000 modules monthly, enabling fast delivery.

Can I visit your factory or request a video tour?

Yes, both on-site and virtual factory tours are welcome.

What production automation equipment do you use?

We use SMT machines, reflow soldering, AOI testers, and aging testers for high reliability.

Do you support product batch or serial number tracking?

Yes, all products have unique serial codes for traceability and support.

Do you have automatic test equipment?

Yes, all products undergo automated end-line testing.

Is your production line ESD-compliant?

Yes, ESD protection is implemented throughout production.

R&D and Customization

Do you have your own R&D team?

Yes, we have dual R&D centers focusing on communication protocols and signal control.

What customization options are available?

We can customize protocols, hardware structure, terminals, housing color, and logo.

Can you provide design drawings or 3D models?

Yes, we offer STEP files and drawings for engineers and integrators.

Do you have your own testing lab?

Yes, we have labs for hardware, EMC, and communication testing.

Certification & Compliance

What certifications do your products have?

Our products are CE and RoHS certified, and UL certification is available upon request.

Can you provide Certificate of Origin or test reports?

Yes, we provide CO and QC reports upon request.

Is your factory ISO certified?

Yes, we are ISO9001 and ISO14001 certified.

Do you perform EMC and temperature testing?

Yes, all products undergo EMC, voltage, and temperature cycling tests before delivery.

Do you perform thermal aging tests?

Yes, we use temperature cycling to ensure long-term reliability.

Are your modules vibration/drop tested?

Yes, vibration and drop tests meet industrial shipping standards.

Is your quality control process standardized?

Yes, we follow IQC, IPQC, FQC, and OQC protocols.

Performance & Compatibility

What protocols do your IO modules support?

We support PROFINET, EtherCAT, EtherNet/IP, Modbus, CC-Link, and more.

Are your modules compatible with mainstream PLC brands?

Yes, our modules work with Siemens, Mitsubishi, Allen-Bradley, etc.

Do your modules support hot swapping and online debugging?

Some models support hot-swap and live configuration via software.

What is the response time and refresh rate?

Response time is under 1ms; refresh cycle as fast as 0.5ms for real-time control.

Are diagnostic or monitoring functions available?

Yes, diagnostic LEDs and remote alarms are supported.

Are short-circuit and reverse protection supported?

Yes, protective circuits are built in.

Do you provide I/O diagnostics and status monitoring?

Yes, some models support live diagnostics and monitoring.

Brand & Business Advantage

How long have you been in automation manufacturing?

We have over 10 years of experience and export to more than 30 countries.

Do you have overseas agents or distributors?

We are expanding our global network and welcome distributor partnerships.

What support can you offer to distributors or integrators?

We offer product training, marketing materials, and inventory plans.

Do you support OEM/private labeling?

Yes, we offer full private label customization.

Who are your main target customers?

OEMs, integrators, distributors, and global end users.

Do you have overseas customer case studies?

Yes, we’ve served clients across Europe, SEA, and Latin America.

What marketing support do you offer?

We provide drawings, data sheets, videos, manuals, and web assets.

Do you participate in industry exhibitions?

Yes, we attend Hannover Messe, Industrial Expo, and more.