Rockwell Automation 2098-IPD-xxx Ultra5000 Intelligent Positioning Drives Installation Manual - Manual (Page 60)

Publication 2098-IN001E-EN-P — April 2002
2-34 Ultra5000 Connector Information
Understanding the Serial
Interface
The Ultra5000 provides two physically identical serial ports (Main
Serial Port CN3A and Auxiliary Serial Port CN3B) that implement the
standard NRZ asynchronous serial format, and supports RS-232,
RS-422, and RS-485 communication standards. However, functionality
differs between the ports:
• The CN3A serial port communicates at a data rate fixed by the
drive at 38400 baud. It is primarily for communications between a
PC running Ultraware and the drive.
• The CN3B serial port’s data rate is programmable via the drive’s
user (motion) program. It is primarily for communications between
the drive and other devices requiring an interface to the user
program.
Standard baud rates include 1,200, 2,400, 4,800, 9,600, 19,200, and
38,400 baud. Data lengths of 7 and 8 bits are supported.
The connector pinout dedicates separate pins for the RS-232 and
RS-422/ RS-485 signals, so that the communication standard can be
changed by just using a different cable. Refer to
Figure 2.26 for the
serial interface configuration.
Figure 2.26
Serial Interface Configuration
Default Serial Interface Settings
The default setting of the Ultra5000 serial interface is as follows:
Parameter Default Setting
Baud Rate 38,400
Frame Format 8 Data, No Parity, One Stop
RS-232
RS-485
XMT
RCV
XMT-
XMT+
RCV+
RCV-
RECEIVE
TRANSMIT