Rockwell Automation 1756-DH485 ControlLogix DH-485 Communication Module User Manual - Manual (Page 74)

Publication 1756-UM532A-EN-P - May 2006
7-2 Communicate Between a PLC-5 Controller and a Remote SLC 5/03 Controller over Multiple DH-485 Networks
Hardware Configuration In this hardware configuration, a remote PLC-5 controller sends a message to
an SLC 5/03 controller.
Communications Between a PLC-5 and a Remote SLC 5/03 Controller on a DH-485 Network
The PLC-5 controller sends a message to an SLC 5/03 controller located on a
DH-485 network.
• The PLC-5 controller is located on a DH+ network. (1)
• The PLC-5 controller is connected to channel A on a 1756-DHRIO
module located at node 12. (2)
• The 1756-DHRIO is on the same backplane as the 1756-DH485
module and is located in slot 8 of the chassis. (3)
• The 1756-DH485 module is located in slot 14 of the chassis. (4)
• The 1756-DH485 module uses channel A to connect to the SLC/03
controller located at node 1 over the DH-485 network. (5)
DH+/RIO
DH485
E X T E R N A L
ControlLogix Controller 1756-DH485
Channel A
(2), (3)
SLC 5/03 Controller
(5)
DH485 network
communicates
through link
couplers.
PLC-5 controller
sends a message to
an SLC 5/03
controller.
(1)
DH+ Network
44069
AIC+
AIC
Channel A
(4)
1756-DHRIO
The 1756-DHRIO and the
1756-DH485 are on the
same backplane.