Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 34)

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Publication 1336 FORCE–5.13 –– September, 1998
If you are using the RIO scanner protocol, you need to follow these
steps once you have set the protocol and baud rate:
•
specify the size of the rack (up to one full rack) to scan
•
set the rack configuration
Chapter 3, Using Remote I/O Communications, provides additional
information about the RIO scanner protocol.
Specifying Whether One Full Rack Is Being Scanned
Use the following chart to set switch 8 on either U2 or U4.
Is RIO scanner scanning one full rack (instead of
portions that total a full rack)? If:
Then set
SW8 to:
Yes On
No Off
If you set switch 8 to On, you do not need to set the switches for U3
or U5.
Setting the Rack Configuration
To set the switches on either U3 or U5 to specify the rack
configuration for RIO scanner, you need to first determine how you
want to set up the logical RIO rack (that is, the rack size(s) and their
respective module group). For example, if you want RIO scanner to
scan one 1/4 rack and one 1/2 rack, you need to decide what the
starting module groups will be for both racks (0, 2, 4, or 6).
The DIP switches for the rack configuration work as pairs. One pair
of switches designates a 1/4 rack. If you use a 1/2 rack, you need to
use two pairs of switches, or four switches. Likewise, if you use a
3/4 rack, you need to use three pairs of switches, or six switches.
Use the following chart to set the DIP switches for your specific
configuration. Quarter 4 through quarter 1 represent the quarter
racks that make up one full rack.
Quarter 4 Quarter 3 Quarter 2 Quarter 1 DIP Switches U3 or U5
1/4 Off Off Off Off Off Off Off On
1/4 Off Off Off Off Off On Off Off
1/4 Off Off Off On Off Off Off Off
1/4 Off On Off Off Off Off Off Off
1/4 1/4 Off Off Off Off Off On Off On
1/4 1/4 Off Off Off On Off Off Off On
1/4 1/4 Off On Off Off Off Off Off On
Configuring the RIO
Scanner Protocol
"
ON = OFF =
U2 or U4
Switch 8
1
2
3
4
5
6
7
8
0 N
0N C
HA
NN
EL A
HIG
H
U2
1
2
3
4
5
6
7
8
0 N
0N C
HA
NN
EL B
HIG
H
U4
RIO Scanner
Yes
No
SW8
On
Off
ON = OFF =
U3 or U5
Switches 1 through 8
1
2
3
4
5
6
7
8
0 N
0N CHANNEL B LOW
U5
For each pair of switches
Not Used
1/4 Rack
1/2 Rack
3/4 Rack Off
Off
On
On Off
On
Off
On
1
2
3
4
5
6
7
8
0 N
0N CHANNEL A LOW
U3