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CDC Type I

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Developed by the EMPROS company, the CDC Type I protocol enables communication between control stations and RTU 44-500 or 44-550 substations.

The physical layer operates in a proprietary PCM mode.

Supported Information Types

Control Direction Double Command
Setpoint [12 bit]
Monitoring Direction Single indication [1 Bit]
Measured value [12 bit]
Counter value [16 bit]

Protocol Features

Physical Layer proprietary PCM encoding, half-duplex
Application Layer on-demand transmission of digital, analog and counter values
Direct transmission of commands and setpoints
"Select before operate" transmission of commands and setpoints
Address Space RTU addresses 0..13
up to 128 16-bit words with up to 16 digitals each
up to 128 analogs

Implemented Protocol Stacks

CDC Type I, Slave

Applicable Products

ipConvipConvUniversal protocol converter for highest degree of flexibility
Details...
product/ipConv/en/ipConv_en.pdf

References

Neptune RTS, USANeptune RTS, USA
Details...
USAipConv DNP V3.00, Slave / Simatic TDC, Master / Modbus, Master / CDC Type I, Slave /
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