Rockwell Automation 2706 DL40 HARDWARE USER MANUAL - Manual (Page 133)

Chapter 11
Installation and Wiring
11 – 12
The RS–232 Port connects the DL40 to a computer for direct (point to point)
uploading and downloading of application files, as well as testing messages.
It also connects the DL40 to a tape recorder for reading or writing the
DL40’s internal application memory to or from the tape recorder or connects
the DL40 to a serial printer.
Catalog Numbers for Allen–Bradley cables are listed on page 2–10.
If you want to construct your own cable, use the appropriate diagram in
Appendix C.
A DL40 can be used to trigger a remote alarm or warning light under specific
conditions. You would attach this remote alarm or light to the Alarm Relay.
!
ATTENTION: Use the Alarm Relay for annunciator purposes
only. Do not use it for control.
Figure 11.12
Relay Port
N/O N/C COM
The RS-232 Port
The Alarm Relay