Viscon Dua RTU - I/O Module
Product Highlights
- Single-module or multi-module systems
- Modular and distributed
- Handles up-to 1000 points
- Various plant signal interface
- Various communication interface
- Wall, pole or rack-mount
- Industrial standard compliant
General Features
- Multi input/output (digital and analog)
- Built-in protection circuits
- Point-to-point or multi-drop configuration
- Time synchronization
- Wide operating power range
- User-friendly configuration and diagnostic tools
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The Viscon Dua RTU I/O module comprises of a Central Processing Unit ( CPU ) card, up-to three digital/analog I/O cards and a back-plane mother-board card.
There are various types of I/O configurations which consist of either only dedicated Digital Input (DI) cards, dedicated Digital Output (DO) cards, dedicated Analog Output (AO) card dedicated Analog Input (AI) card and mixed Digital Input (DI) and Digital Output (DO) cards.
I/O configurations can be customised according to system requirements. These I/O points are configured according to SCADA applications
The I/O module is conceptualised to include modularity, robustness and fault tolerant within quality standards. The I/O ports are optically and relay isolated to ensure no mis-operations nor failures which will affect either the plant interface nor immediate devices. At the same time, it is able to handle any plant failures such as over voltages or currents protecting the system from dysfunction.
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Product Overview
- Operable in single-port or multi-port (Master/slave) configurations for extended I/Os.
- Monitoring of 16-channel analog inputs per card and controlling of 16 digital outputs card and 32 digital inputs per digital input card.
- Communicating with SCADA Master through its RS232 port with programmable data speed. Message housekeeping and function processing are performed by the master CPU card.
- Communicating with Viscon Dua Programming and Diagnostic Utility (PDU) through a dedicated diagnostic port.
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Viscon Dua RTU module consists of the CPU card and up to three input/output cards either Digital Input (DI) card, Digital Output (DO) card, Analog Input (AI) card and /or Analog Output Card.
CPU Card
The CPU card consists of a microcomputer or micro-controller with peripherals, memories, communication interfaces, real-time clock, watchdog timer, and decoders.The essential tasks of the CPU card are:
- Managing and controlling of the I/O cards via peripheral bus.
- Reading the process events from input cards.
- Reading analog input from analog cards.
- Sending the commands to the output cards.
- Handling communication to the master system.
- Self test the status of I/O cards and CPU card.
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