Rockwell Automation 1440-SPD02-01RB XM-220 Dual Speed Module - Manual (Page 44)

Publication GMSI10-UM004B-EN-P - May 2010
36 Installing the XM-220 Dual Speed Module
Figure 2.26 Spacing of the Sensors
PC Serial Port Connection
The XM-220 includes a serial port connection that allows you to connect a PC
to it and configure the module’s parameters. There are two methods of
connecting an external device to the module’s serial port.
• Terminal Base Unit - There are three terminals on the terminal base
unit you can use for the serial port connection. They are TxD, RxD, and
RTN (terminals 7, 8, and 9, respectively). If these three terminals are
wired to a DB-9 female connector, then a standard RS-232 serial cable
with 9-pin (DB-9) connectors can be used to connect the module to a
PC (no null modem is required).
The DB-9 connector should be wired to the terminal block as shown.
CH 1 SENSOR
CH 2 SENSOR
CH 1 SENSOR
CH 2 SENSOR
CH 1 SENSOR
CH 2 SENSOR
CH 1 SENSOR
CH 2 SENSOR
CH 1 SENSOR
CH 2 SENSOR
CH 1 SENSOR
CH 2 SENSOR YES
NO
IMPORTANT
Make certain to set the Measurement Mode parameter to
"Reverse Rotation." Refer to Measurement Mode
Parameter on page 46.
XM-220 Terminal Base Unit
(Cat. No. 1440-TB-A) DB-9 Female Connector
TX Terminal (terminal 7) ---------------------- Pin 2 (RD - receive data)
RX Terminal (terminal 8) ---------------------- Pin 3 (TD - transmit data)
RTN Terminal (terminal 9) --------------------- Pin 5 (SG - signal ground)