2EX302.6 by B & R Automation

Module Type
Expand Slave Module

Purpose
Segments I/O buses to enable addressing up to 99 I/O modules from a single CPU

Addressing Limitation
Allows more than 20 I/O modules to be addressed without exceeding the 4-meter I/O bus length limit

Bus Segmentation
Uses an expansion master and expansion slave to divide the I/O bus into sections

Maximum of 10 bus segments
Yes

Each segment contains an expansion master
Yes

Addressing Method
Addressing through BCD numbers dialed in tens (10, 20, 30, etc.)

Seven-segment display
Shows the start address for bus segments, always ending in zero

Expansion master modules
Connected to respective expansion slaves

Power supply modules
Must be placed onto these bus segments