Rockwell Automation 2706-F11J_F11JC_F21J_F21JC DL50 INSTALLATION MANUAL - Manual (Page 47)

Chapter 4
Installing the DL50
4–22
The Allen-Bradley BASIC Modules (Catalog No. 1771-DB and Catalog No.
1746-BAS) provide a cost-effective and efficient serial interface to
Allen-Bradley PLC and SLC controllers. The BASIC Modules store all
messages in battery-backed RAM or EPROM. The modules can be
programmed to transmit these messages along with status or variable data
from the programmable controller.
The BASIC Modules support both RS-232 and RS-422 applications. For
more information on the BASIC Modules, refer to the user’s manuals.
Chapter 6 provides programming examples.
Figure 4.18 shows how to connect the RS-232 port of the DL50 to the
BASIC Modules.
Figure 4.18
RS-232 Connection to BASIC Module
DL50
RS-232 TERMINALS
T
R
1
G
1
2
3
4
5
6
DL50
RS-485
TERMINALS
2
3
Shield
1771-DB RS-232
PERIPHERAL PORT
1
2
3
4
5
6
20
Chassis / Shield
TxD Output
RxD Input
Signal Ground 7
1746-BAS
RS-232 PORT
2
3
5
6
7
8
TxD Output
RxD Input
Signal Ground
4
DL50
RS-232 TERMINALS
T
R
1
G
2
3
Shield
BASIC Module
Catalog No. 1771-DB
Catalog No. 1746-BAS