Specifications

Communication Choices 11
1785-SO036C-EN-P - April 2002
Data Highway Plus The Data Highway Plus (DH+) network is a local area network
designed to support remote programming and data acquisition for
factory-floor applications. You can also use DH+ communication
modules to implement a small peer-to-peer network.
You can use a DH+ network for data transfer to other PLC-5
controllers or high-level computers and as a link for programming
multiple PLC-5 controllers. A PLC-5 controller can communicate
over a DH+ network with other controllers and with a workstation.
The DH+ network supports daisy chain and trunkline-dropline
configurations.
DH+ specifications
Features:
• supports remote programming
• popular, existing standard
• peer-to-peer communications
Communication Choices
41396
ControlLogix chassis with
1756-DHRIO module
SLC-5/04 controller
workstation
workstation with
RSLogix 5
TM
software
PLC-5 controllerPLC-5 controller
Data Highway Plus
Data transmission rate: Maximum cable
length:
Maximum number of
nodes:
57.6kbps 3,048m (10,000 ft.)
64 per link
99 links per network
115.2kbps 1,524m (5,000 ft.)
230.4kbps 762m (2,500 ft.)