Rockwell Automation 1755-OF8 GuardPLC Controller Systems User Manual

Page 281

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Publication 1753-UM001C-EN-P - March 2010

281

Communicate with Modbus and Profibus Devices Chapter 22

Inputs are signals sent from the Profibus master to the controller
(slave). Outputs are signals sent from the controller (slave) to the
master.

1. Expand Protocols, right-click the Profibus-dp Slave icon, and

choose Connect Signals

.

2. Edit the signals you want to receive or send:

Use the Inputs tab to determine which values to read into the
controller. The Inputs tab contains pre-defined system
variables that can be interrogated via the assignment of
signals.

Use the Outputs tab to define output values to send to the
Profibus master.

Associate each input or output with a signal from the signal
editor. You can drag and drop signals from the signal editor
to the signal connections dialog box.

If you want to

Click this tab

create a new signal

New Connected Signal

renumber offsets sequentially for all signals

New Offsets

delete the selected signal

Delete Connected Signal

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