Alstom Reason RPV311 - Analog Data; Digital Channels; Configuration

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Chapter 9 – MODBUS

RPV311

192

RPV311-TM-EN-6

2.3 ANALOG DATA

The user must manually associate analog data to a register number. The following analog data can be

selected:

 RMS value of voltage and current circuits (any phase);

 Voltage and current synchrophasors (any phase, angles are sent in degrees units);

 Frequency of voltage and current circuits;

 Positive sequence of voltage and current circuits;

 Negative sequence of voltage and current circuits;

 Imbalance of voltage and current circuits;

 Total harmonic distortion of voltage and current circuits;

 Apparent combined power of power circuits;

 Apparent fundamental power of power circuits;

 Active fundamental power of power circuits;

 Reactive fundamental power of power circuits;

 RMS value of transducer channels.

2.4 DIGITAL CHANNELS

All digital channels are reported in groups of 8 channels. A register data is composed of 16-bit data where

the least significant bit represents the state of the first digital channel of the group. The user must manually

associate a digital group with a register number.

2.5 CONFIGURATION

The MODBUS configuration is carried out through the Web Interface. For details about the MODBUS

configuration see Chapter 4.