Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 282)

282 Publication 1753-UM001C-EN-P - March 2010
Chapter 22 Communicate with Modbus and Profibus Devices
3. Click New Offsets to automatically calculate the offsets for the
new signals.
Configure the Profibus Master
For both the Profibus output and input signals, the Profibus ID of the
first signal to communicate, the number of signals, and the number of
bytes must be configured in the Profibus Master.
Configuration is accomplished via parameter data read from a GSD
file. The parameter data consists of 32 bytes in hexadecimal format,
which may be displayed in different ways depending upon the
Profibus DP master software.
The GSD file for GuardPLC 1600 and GuardPLC 1800 controllers is
available on the RSLogix Guard PLUS! software CD.
For more information on using Profibus protocol, consult the online
Help.
IMPORTANT
Due to the offsets of the system variables, the offset of the first
input signal must begin with 12. The offset for the first output
signal begins with 0.
The Profibus ID for the first input signal is 0.