Rockwell Automation 8520 9/Series CNC Lathe User Manual

Page 255

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Communications

Chapter 9

9-5

PORT TYPE

Port type options differ depending on the port you select.

Port

Type

Port A

RS232-C

Port B

RS232-C or RS422A

BAUD RATE

You can set the baud rate at these speeds (in bits per second):

300, 600, 1200, 2400, 4800, 9600, MAX

MAXIMUM BAUD RATE

If you need to operate your 9/Series control at a baud rate higher than

9600 bps, you can toggle between 19200 (default setting) and 38400 bps:

SAVE

CHANGE

COPY

DEFLTS

SETMAX

19200

SETMAX

38400

Important: The “SAVE CHANGES” and “COPY DEFLTS” softkeys

have no affect on the maximum baud rate setting.

Although you can make your selection at any time, only when “MAX”

displays is it implemented for all ports on your control. Until then, your

selection is highlighted to remind you of your currently selected maximum

baud rate. Once you’ve made a selection, it is effective until you make

another selection.

Important: Selecting a maximum baud rate that your device does not

support causes the selection to be ignored. For ODS device drives, you

must cycle power on the control after changing the baud rate in order for

the control to recognize your selection. If one or both ports are busy, the

request to select a maximum baud rate is ignored, returning the error,

“PORT IS BUSY -- REQUEST DENIED”.

Important: Your “MAX” selection establishes the maximum baud rate for

all serial ports on your 9/Series control. A combination of 19200 baud on

one port and 38400 baud on another port is not allowed.

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