Rockwell Automation 2706-LV2S_LV4S DL40 PLUS SLAVE USER MANUAL User Manual
Page 27
Publication 2706-6.3
3-10
Installation and Startup
DL40 Plus Slave to a Computer using an RS-485 Converter Box
If you are using a personal computer to send messages to the DL40
Plus Slave using the RS485 port, refer to the following diagram:
Note: When using the Black Box RS-485 Converter (LD-485A-MP):
• Set the RTS/CTS delay time to 5 milliseconds using jumper
W9.
• Set Switch S2 to the unterminated position.
• If the RS-485 Driver Enable is set to “Enable When Data is
Received on the RS-232 Port” (Jumper W15 in the B-C
position), set the “Disable Timeout Delay” to 100 msec or
greater (Jumper W17) when communicating at lower Baud
rates (300 or 1200 Baud).
• You can use a programming cable (Catalog No. 2706-
NC15) to connect the computer serial port to the RS-485
converter box.
RS-485 Converter Box
(Model LD-485A-MP)
DL40-Plus Slave
Display- RS-485 Port
R S - 2 3 2 I N
C H - B
R S - 2 3 2 G r o u n d
T e r m
C H - A
C o m m
Shield
E - G r o u n d
4
3
1
2
6
5
Monitor
R S - 4 8 5 O U T
P . C . R S - 2 3 2
Serial Port
R X B
R X A
T X A
T X B
Sheild
5 - G r o u n d
3 - T X D
2 - R X D
2
3
7
Computer
Shield