ILX69-PBM ♦ CompactLogix™ or MicroLogix™ Platform
Installation
PROFIBUS Master Communication Module
User Manual
ProSoft Technology, Inc.
Page 21 of 113
4
Installation
4.1
System Planning Considerations
Network Conception
The ILX69-PBM can communicate with up to 125 PROFIBUS slave devices.
A 1769-ECR (right end cap) or 1769-ECL (left end cap) is required to terminate the
end of the Compact I/O bus.
Each bank of CompactLogix I/O must have its own power supply.
A CompactLogix I/O power supply has limits of +5V to +24V DC. These limits
depend on the catalog number (e.g. 1769-PA2) of the power supply. A bank of
modules must not exceed the current limits of the I/O bank power supply. Refer to
the Compact 1769 Expansion I/O Power Supplies Installation Instructions.
The ILX69-PBM has a distance rating of 2. Therefore, the module must be within 2
slots of
the I/O bank’s power supply.
Configuration and Network Communication
Determine the PROFIBUS baud rate based on standard PROFIBUS system
considerations.
Identify the number of words of I/O data each slave supports.
