Rockwell Automation 2706-LV2S_LV4S DL40 PLUS SLAVE USER MANUAL - Manual (Page 26)

Publication 2706-6.3
Installation and Startup 3-9
Connecting to a DL40 Master
One or multiple DL40 Plus Slave displays may be connected to a
single DL40 Plus master display using the RS-485 port. The RS-485
network supports multi-drop communications with up to 126 slave
displays. Use Belden 9842 cable at a maximum length of 4,000 ft
(1219 meters). Refer to the following illustration.
CH B
CH A
COM
Shield
User installed jumper at first and
last Dataliner on the RS-485 link.
COM
CH A
CH B
User installed jumper at any node
(one node only) on the RS-485 link.
CH B
CH A
COM
Shield
To Next Node
Belden 9842 Cable
Recommended
DL40 Plus Master
DL40 Plus Slave
1
-E
GN
D
2
-SHL
D
3
-COM
M
4
-CH
A
5
-CH
B
6
-TE
RM
1
-E
GND
2
-SHLD
3
-COM
M
4
-CH
A
5
-CH
B
6
-T
ERM
RS-485
RS-485