Schneider Electric Processor Adapter User Manual
Page 175
Using the I/OBus Port
870 USE 101 10 V.2
175
Guidelines for I/OBus Networks
Overview
This section gives guidelines for creating an I/OBus network using a Momentum
CPU as bus master.
Length
The maximum distance between the Momentum CPU master and the farthest slave
is 13 km (8 mi).
Distance
Between Nodes
The maximum distance between nodes is 400 m (1300 ft.).
Number of
Devices
A network may consist of as many as 256 nodes, including one Momentum CPU
bus master and up to 255 slave I/O devices.
Acceptable Slave
Devices
An I/OBus slave device can be:
l
A Momentum I/O base with a 170 INT 110 00 Interbus Communication Adapter
mounted on it
l
A Modicon Terminal Block I/O module enabled for Interbus communications
l
A standard Interbus module designed by a third party manufacturer
Unacceptable
Slave Devices
The I/OBus network does not support Interbus-compatible devices that require the
Interbus PCP protocol.
Continued on next page
Note: Processors that support IEC are limited to a maximum number of 1408
used I/O points, regardless of the number of modules.