SaierNico S8029-10 Modbus TCP to RTU & CAN Gateway Module | Industrial Protocol Converter
Engineering Background
Modern industrial automation networks frequently require seamless interoperability between Ethernet-based Modbus TCP supervisory systems and legacy serial Modbus RTU or CAN Bus field devices. The SaierNico S8029-10 (MTTR) gateway module was engineered specifically to bridge this protocol gap — enabling procurement engineers and system integrators to unify heterogeneous control architectures without costly PLC replacements or custom middleware development.
Product Positioning
The S8029-10 is a DIN-rail-mountable, multi-protocol industrial gateway targeting SCADA integration, PLC network expansion, and legacy device modernization projects. It is positioned as a drop-in protocol translator for facilities running mixed Modbus TCP/RTU environments alongside CAN Bus subsystems — common in energy management, building automation, and discrete manufacturing.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model | S8029-10 (MTTR) |
| Manufacturer | SaierNico |
| Function | Modbus TCP ↔ Modbus RTU / CAN Bus Protocol Conversion |
| Ethernet Port | 1 × RJ45, 10/100 Mbps, Auto-MDI/MDIX |
| Serial Port | RS-485 (Modbus RTU) |
| CAN Port | ISO 11898 CAN 2.0A/B |
| Baud Rate (Serial) | 1200 ~ 115200 bps |
| CAN Baud Rate | 5 kbps ~ 1 Mbps |
| Modbus TCP Connections | Up to 8 simultaneous TCP clients |
| Power Supply | DC 9~30V wide-range input |
| Power Consumption | ≤ 3W |
| Operating Temperature | -40°C ~ +85°C |
| Storage Temperature | -40°C ~ +85°C |
| Humidity | 5% ~ 95% RH (non-condensing) |
| Protection Rating | IP20 |
| Mounting | DIN Rail / Panel Mount |
| Dimensions (W×H×D) | Approx. 100 × 75 × 25 mm |
| Weight | 560 g |
| Certifications | CE, RoHS |
| Country of Origin | China |
| SKU / Part Number | S8029-10 |
Proven Application Environments
- SCADA & DCS Integration: Connect Modbus TCP SCADA hosts to RS-485 RTU field instruments without additional software drivers.
- PLC Network Expansion: Extend Siemens, Mitsubishi, or Omron PLC Ethernet networks to legacy Modbus RTU slave devices.
- CAN Bus Bridging: Interface CAN-based motor drives, inverters, and sensors into Modbus TCP supervisory networks.
- Energy Management Systems (EMS): Aggregate data from RS-485 energy meters into Ethernet-based EMS platforms.
- Building Automation (BAS/BMS): Integrate HVAC controllers, lighting systems, and access control panels across mixed protocols.
- Renewable Energy: Solar inverter and battery management system (BMS) data aggregation via CAN to Modbus TCP.
- Discrete Manufacturing: Machine-level CAN Bus data collection into plant-floor Modbus TCP historians.
Engineering Advantages
- Bidirectional Protocol Translation: Full read/write support in both directions — Modbus TCP master polling RTU slaves, and RTU masters accessing TCP registers.
- Wide Power Input Range: DC 9–30V accepts both 12V and 24V industrial power rails without additional regulators.
- Extended Temperature Rating: -40°C to +85°C qualifies for outdoor enclosures, harsh factory floors, and cold-storage environments.
- Multi-Client TCP Support: Up to 8 simultaneous Modbus TCP client connections — ideal for redundant SCADA architectures.
- Compact DIN-Rail Form Factor: Minimizes panel space; installs alongside PLCs and I/O modules in standard control cabinets.
- Isolated Ports: Electrical isolation on serial and CAN ports protects against ground loops and transient surges common in industrial environments.
- Zero-Configuration Discovery: Supports static IP and DHCP; configurable via web browser or dedicated utility software.
System Architecture & Signal Flow
The S8029-10 operates as a transparent protocol bridge in the following topology:
[SCADA / HMI / PLC]
│
Modbus TCP (Ethernet RJ45)
│
┌─────▼──────┐
│ S8029-10 │
│ Gateway │
└──┬──────┬──┘
│ │
Modbus RTU CAN Bus
(RS-485) (ISO 11898)
│ │
[RTU Slaves] [CAN Devices]
(Meters, (Drives,
Sensors, Inverters,
Controllers) BMS)
The gateway maps Modbus TCP register addresses to corresponding RTU coils/registers and CAN frame IDs, enabling the supervisory layer to read and write field device data using standard Modbus function codes (FC01–FC06, FC15–FC16).
Sourcing & Quality Verification
- Authorized Distribution: Konmask.com sources SaierNico products directly from the manufacturer or certified regional distributors.
- Inspection Protocol: Each unit undergoes incoming inspection including power-on functional test, port continuity check, and firmware version verification before dispatch.
- Authenticity Guarantee: All products ship with original manufacturer packaging, documentation, and warranty seals intact.
- Traceability: Batch records and serial numbers are logged for full supply-chain traceability on request.
- Certifications on File: CE Declaration of Conformity and RoHS compliance documentation available upon request for procurement audits.
Procurement Process
- Confirm Quantity & Lead Time: Contact us with your required quantity. Standard stock items ship within 1–3 business days; large orders may require 5–10 business days.
- Request a Formal Quote: Email [email protected] with your PO number, delivery address, and Incoterms preference for a formal quotation.
- Payment Terms: T/T (Bank Transfer), PayPal, and credit card accepted. Net-30 terms available for qualified corporate accounts.
- Shipping Options: DHL Express, FedEx International, UPS, and sea freight for bulk orders. Export documentation (commercial invoice, packing list, COO) provided.
- After-Sales Support: 12-month warranty. Technical support available via email and phone during business hours (UTC+8).
Technical FAQ
- Q: Can the S8029-10 act as both a Modbus TCP server and client simultaneously?
- A: The S8029-10 primarily functions as a Modbus TCP server (slave) on the Ethernet side, responding to TCP master requests and forwarding them to RTU/CAN devices. Consult the firmware documentation for master-mode availability.
- Q: How many Modbus RTU slave devices can be connected?
- A: The RS-485 bus supports up to 32 nodes (standard RS-485 specification). Device address range is 1–247 per Modbus protocol.
- Q: Is the CAN port compatible with CANopen or DeviceNet?
- A: The S8029-10 supports raw CAN 2.0A/B frames. Higher-layer protocols (CANopen, DeviceNet) may require additional configuration or firmware support — contact us to confirm compatibility with your specific devices.
- Q: What configuration software is required?
- A: Configuration is performed via a built-in web interface (browser-based) or SaierNico’s dedicated configuration utility. No proprietary software license is required.
- Q: Is the unit suitable for outdoor installation?
- A: The S8029-10 is rated IP20 and is designed for installation inside control cabinets or enclosures. For outdoor use, install within a weatherproof enclosure rated IP65 or higher.
- Q: Can I get a sample unit for evaluation?
- A: Yes. Sample orders are accepted. Contact [email protected] to arrange evaluation unit pricing and terms.
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