1 Publication 1762-UM001D-EN-P - March 2004
Chapter
4
Communication Connections
This chapter describes how to communicate to your control system.
The method you use and cabling required to connect your controller
depends on what type of system you are employing. This chapter also
describes how the controller establishes communication with the
appropriate network. Topics include:
• supported communication protocols
• default communication configurations
• using communications toggle push button
• connecting to RS-232 port
• connecting to DH-485 network
• connecting to AIC+
• DeviceNet communications
MicroLogix 1200 controllers with the additional communications port
(1762-L24AWAR, 1762-L24BWAR, 1762-L24BXBR, 1762-L40AWAR,
1762-L40BWAR, 1762-L40BXBR) offer advanced communications
options, providing a clean, cost effective solution for applications
requiring a network connection and HMI.
The additional communications port (Programmer/HMI Port) enables
two communication devices to be connected to the controller
simutaneously. For example, it provides local connectivity of an
operator interface or programming terminal such as DF1 PanelView
HMI, IBM-compatible personal computer using RSLogix 500
programming software, or 1747-PSD program storage device, and also
allows the primary port (Channel 0) to be connected to either a
network, a modem, or an ASCII device such as a barcode reader or
weigh scale, etc.
Supported Communication
Protocols
MicroLogix 1200 controllers support the following communication
protocols from the primary RS-232 communication channel, Channel
0:
• DH-485
• DF1 Full-Duplex
• DF1 Half-Duplex
• DF1 Radio Modem
• Modbus Master and Slave
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