Understanding slot addressing, Understanding slot addressing -32 – Rockwell Automation 1747-BSN Backup Scanner Module User Manual
Page 94
Publication 1747-UM010B-EN-P - September 2003
5-32 Configuration and Programming
Understanding Slot
Addressing
This section provides information about:
•
2-slot addressing
•
1-slot addressing
•
1/2-slot addressing
Understanding slot addressing is critical to most efficiently allocate
your scanner’s I/O image files.
Slot addressing refers to how each remote chassis slot is assigned a
specific amount of the I/O image. The amount depends on which
type of slot addressing you choose at your adapter; 2-slot, 1-slot, and
1/2-slot addressing is available, as shown below:
For more information on slot addressing, refer to your ASB module
user manual.
Note that slot addressing (e.g., 1/2-, 1-, and 2-slot) may not apply to
all types of RIO devices. Refer to each RIO device’s user manual to
determine the type of slot addressing required.
0
7
8
15
0
7
8
15
0
7
8
15
0
7
8
15
0
7
8
15
0
7
8
15
Two slots are addressed as one logical group.
Input Image
Output Image
2-Slot
Addressing
Remote Chassis
1-Slot
Addressing
Remote Chassis
One slot is addressed as one logical group.
Input Image
Output Image
1/2-Slot
Addressing
Remote Chassis
One slot is addressed as two logical groups.
Input Image
Output Image
Slot 2
Slot 2
Slot 1
Slot 1
Slot 1
Slot 1
Slot 1
Slot 1