Rockwell-automation 1794-L34 FlexLogix Controller System User Manual Manual do Utilizador descarregar pdf (Página 31)

Publication 1794-UM001G-EN-P - January 2007

Communicate over Networks 31

Serial

The RS-232 port is a non-isolated serial port built-in to the front of the

FlexLogix controller. You can configure the serial port of the controller

for these modes:

See:

• Logix5000 Controllers Common

Procedures Manual, 1756-PM001

Use this mode: For:

DF1

point-to-point

communication between the controller and one other

DF1-protocol-compatible device.

This is the default system mode. Default parameters are:

• Baud Rate: 19200

• Data Bits: 8

• Parity: None

• Stop Bits: 1

• Control Line: No Handshake

• RTS send Delay: 0

• RTS Off Delay: 0

This mode is typically used to program the controller through its

serial port.

DF1 master mode control of polling and message transmission between the master and

slave nodes.

The master/slave network includes one controller configured as the

master node and as many as 254 slave nodes. Link slave nodes using

modems or line drivers.

A master/slave network can have node numbers from 0 to 254. Each

node must have a unique node address. Also, at least 2 nodes must

exist to define your link as a network (1 master and 1 slave station are

the two nodes).

DF1 radio modem

• Compatible with SLC500 and MicroLogix1500 controllers

• This mode supports master and slave, and store and forward

modes

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Rockwell-automation 1794-L34 FlexLogix Controller System User Manual Manual do Utilizador Página 31