Rockwell-automation AADvance Controller Demo Unit Manual de usuario descargar pdf (Pagina 39)

Document: 553850 Issue 1.2: March 2011

4-5

Serial Port Protocols

The serial ports support the protocols listed in the table.

Table 5: Serial Port Protocols

Type Description

RS485fd Full-duplex, 4-wire connection with separate buses for

transmit and receive

RS485fdmux Full-duplex, 4-wire connection with separate buses for

transmit and receive and tri-state outputs on the

transmit connections

RS485hdmux Half duplex, 2-wire connection

Serial Port Parameters

Each serial port on the AADvance controller supports the set of control parameters as

detailed in the table.

Table 6: Controller Serial Port Parameters

Description Value(s) Default Remarks

Baud 2,400, 4,800, 9,600,

19,200, 38,400,

57,600, 76,800 or

115,200

19,200

Data Bits 5 to 8 8

Parity None, Odd or Even None

Stop Bits 1 or 2 1

Type RS485fd

RS485fdmux

RS485hdmux

RS485hdmux 'fd' means 'full duplex'

'hd' means 'half duplex'

Note: Most systems use two bits after each data byte. The two bits are either a parity

bit (odd or even) and one stop bit, or no parity and two stop bits.

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Rockwell-automation AADvance Controller Demo Unit Manual de usuario Pagina 39