Setting the rs-232 serial port rate – Rockwell Automation 22-SCM-232 Serial Converter Module User Manual

Page 25

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Configuring the Serial Converter Module

3-7

The serial port rate, sometimes called baud rate or DF1 rate, is the speed
at which the computer and serial converter module communicate over
RS-232. You can select a serial port rate of 9600, 19.2K, or 38.4K. The
factory-default serial port rate is 9600.

Important: If you change the serial port rate in the serial converter

module, you must set your software to use the same serial
port rate. The serial converter module must be reset or
power cycled before baud rate changes take affect.

To set the serial port rate

1. Set Parameter 03 - [DF1 Rate Cfg] to the desired rate.

Figure 3.8 DF1 Rate Cfg Parameter in HyperTerminal

2. Reset the serial converter module. Refer to

Resetting the Serial

Converter Module

section in this chapter.

3. Set the serial port rate in your software to match the new serial port

rate in the serial converter module.

Setting the RS-232 Serial Port Rate

Press the UP ARROW or DOWN ARROW key to scroll

through the parameter list. Press the LEFT ARROW

or RIGHT ARROW key to modify parameter values.

Press the ENTER key to save a new value.

3> DF1 Rate Cfg = 9600

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