Technical Specifications:
- Type: Fieldbus communication interface module
- Supported Protocols: Modbus RTU (RS-485), Profibus DP slave
- Baud Rate: 1200 bps to 115200 bps (configurable)
- Communication Ports: 2 x RS-485 (Modbus), 1 x DB9 (Profibus optional)
- Data Buffer: 256 bytes transmit, 256 bytes receive
- Isolation: 500 V galvanic isolation between bus and controller
- Power Supply: 5 V DC from backplane
- Operating Temperature: 0°C to +55°C
- Dimensions: Full-width Advant OCS module (approximately 160 x 25 x 170 mm)
Key Features:
- Dual-protocol support on a single module reduces spare parts inventory
- DIP switch configuration for address and baud rate setting
- LED indicators for transmit, receive, and error status
- Supports up to 32 devices per port (Modbus)
- Diagnostic counters for communication errors and timeouts
Application Scenarios:
- Connecting Advant OCS DCS to Modbus-compatible RTUs and meters
- Profibus integration with Siemens PLCs in mixed-vendor plants
- Remote I/O station communication in water treatment plants
- SCADA data exchange for municipal utilities
- Legacy system modernization where fieldbus retrofit is required
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