Frequently Asked Questions (FAQ)

Frequently Asked Questions

Find answers to the most common questions about our M2M products and solutions.

General Questions

Q: What is the difference between M2M and IoT?

A: M2M (Machine-to-Machine) typically refers to direct communication between devices using wired or wireless networks. IoT (Internet of Things) is a broader concept that includes M2M but also encompasses cloud platforms, big data analytics, and AI-driven insights. Think of M2M as a subset of IoT focused on device-to-device communication.

Q: Which gateway model should I choose?

A: It depends on your requirements:

• M2M-7350: Best for general industrial applications, supports multiple protocols

• M2M-7380: Advanced model with 4G LTE, ideal for remote locations

• M2M-7390: High-performance model for large-scale deployments

Q: Can I connect multiple protocols simultaneously?

A: Yes! Our gateways support multiple protocols concurrently. For example, you can connect Modbus RTU devices on one port and Modbus TCP devices on another, all managed through a single gateway.

Technical Questions

Q: What is the maximum number of devices I can connect?

A: The M2M-7350 supports up to 32 slave devices on RS-485 network. For larger deployments, you can use multiple gateways or upgrade to M2M-7390 which supports up to 64 devices.

Q: How do I troubleshoot communication errors?

A: Follow these steps:

1. Check physical connections (cables, termination resistors)

2. Verify device addresses are unique

3. Confirm baud rate and protocol settings match

4. Use built-in diagnostics tool to test communication

5. Check gateway logs for error messages

Q: Is data transmission secure?

A: Yes, we support multiple security features:

• TLS/SSL encryption for MQTT and HTTPS

• VPN support (OpenVPN, IPsec)

• Certificate-based authentication

• Firewall and access control lists

Q: What happens if the internet connection fails?

A: Our gateways include:

• Local buffering: Stores up to 10,000 data points

• Auto-reconnect: Automatically reconnects when connection restored

• Data synchronization: Uploads buffered data when online

• Offline operation: Continues local data collection

Integration Questions

Q: Which cloud platforms are supported?

A: We support all major cloud platforms:

• AWS IoT Core

• Microsoft Azure IoT Hub

• Google Cloud IoT

• IBM Watson IoT

• Generic MQTT brokers

Q: Can I integrate with my existing SCADA system?

A: Yes, our gateways support standard industrial protocols including:

• Modbus TCP/RTU

• OPC UA

• MQTT

• RESTful API

Q: Do you provide SDKs for custom integration?

A: Yes, we offer SDKs for:

• Python

• Node.js

• C/C++

• Java

Support Questions

Q: What is the warranty period?

A: All products come with a 2-year manufacturer warranty covering defects in materials and workmanship.

Q: Do you offer technical support?

A: Yes, we provide:

• Email support: Response within 24 hours

• Phone support: Monday-Friday, 9 AM - 6 PM

• Remote assistance: Via TeamViewer or similar

• On-site support: Available for enterprise customers

Q: Where can I find firmware updates?

A: Firmware updates are available:

• Download from support portal

• Over-the-air (OTA) updates (if enabled)

• Contact support for major version upgrades

Download ZIP: heroui.zip

Download PDF: ds_srv2ua100d_en.pdf

Still have questions? Contact our technical support team at support@tandem-tech.com or call +62-21-1234-5678