Description
Schneider HMIDT551 Remote Terminal Unit
The Schneider Electric SCADAPack series (including the 300, 400, and the latest 500 series) represents a high-performance line of Smart RTUs (Remote Terminal Units). They combine the programming environment of a PLC with the rugged communication capabilities of a remote telemetry unit.
Product Detailed Description
A SCADAPack is designed to monitor and control remote assets where reliable communication and low power consumption are critical. Unlike standard PLCs, SCADAPacks are optimized for low-bandwidth or intermittent links (such as radio, cellular, or satellite) and support native industrial telemetry protocols like DNP3 and IEC 60870-5-101/104.
The modern SCADAPack 500 series (e.g., 570, 575) runs on a high-speed processor and utilizes the EcoStruxure Control Expert (Unity Pro) or Remote Logix software for advanced logic execution.
Key Technical Parameters
Specifications vary by model (e.g., SCADAPack 334 vs. 575).
| Parameter | Specification (General Range) |
| Processor | 32-bit ARM or equivalent high-speed CPU |
| Memory | Up to 128 MB Flash, 128 MB RAM (500 series) |
| Communication Protocols | DNP3 (Level 4), Modbus (RTU/TCP), IEC 60870-5-104 |
| Analog Inputs | 12-bit to 16-bit resolution (4-20mA, 1-5V) |
| Digital I/O | High-speed counters, relay or transistor outputs |
| Ports | Ethernet (10/100), RS-232, RS-485, USB |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Power Supply | 11 to 30 VDC (optimized for solar/battery) |
Product Advantages
- Optimized for Telemetry: Built-in support for “Time-stamping” at the source. If communication is lost, the RTU buffers data and back-fills the SCADA host once the link is restored.
- Extreme Durability: Hardened electronics designed to operate in harsh environments without fans or specialized cooling.
- Cybersecurity: Modern units (500 series) include Secure Boot and encrypted communication to protect remote infrastructure from cyber threats.
- Low Power Consumption: Ideal for remote sites powered by solar panels or batteries, with advanced power management modes.
- Hybrid Logic: Supports both Ladder Logic and high-level languages like C/C++ for complex calculations or custom drivers.
Important Considerations & Precautions
- Protocol Configuration: DNP3 configuration can be complex. Ensure “Event Deadbands” are set correctly to avoid flooding narrow-band radio networks with unnecessary data.
- Grounding: Remote sites are highly susceptible to lightning strikes. Proper surge protection and site grounding are mandatory to protect the integrated I/O.
- Firmware Updates: Always keep the bootloader and firmware synchronized. Mismatched versions can lead to communication stability issues.
- Battery Maintenance: If used in a solar application, ensure the charging circuit is calibrated for the specific battery chemistry (Lead-Acid vs. Lithium).
Product Applications
- Oil & Gas: Wellhead monitoring, pipeline pressure sensing, and flow measurement (Electronic Flow Measurement – EFM).
- Water & Wastewater: Remote pump station control, tank level monitoring, and leak detection in sprawling distribution networks.
- Renewable Energy: Monitoring solar farm performance and weather station data integration.
- Electrical Grid: Small substation automation and feeder monitoring where DNP3 is the required standard.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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