Allen-Bradley 1440-SDM02-01RA, User Manual, Page: 50 / 168

50 Rockwell Automation Publication 1440-UM001D-EN-P - September 2016
Chapter 1 Install the XM-124 Standard Dynamic Measurement Module
Serial Port Connection
The XM-124 module includes a serial port connection that lets you connect a
personal computer to it and configure the module parameters via the Serial
Configuration software utility.
Connecting the serial port of the module to an external device can be done
using either of the following methods.
•
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
personal computer (no null modem is required).
Wire the DB-9 connector to the terminal block as shown.
•
Mini-connector
- The mini-connector is on the top of the module, as
shown.
Figure 32 - Mini-connector
A special cable (catalog number 1440-SCDB9FXM2) is required for
this connection. The connector that inserts into the personal computer
is a DB-9 female connector, and the connector that inserts into the
module is a USB Mini-B male connector. The default communication
rate is 19.2 Kbps.
XM-124 Terminal Base Unit
(catalog number 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)
WARNING: If you connect or disconnect the serial cable with power applied
to the module or the serial device on the other end of the cable, an electric
arc can occur. This arc could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Mini-connector