
Planning Your Application
Chapter 4
4-20
After assigning addresses to all objects, windows and PLC controlled
options, you can determine your I/O requirements. Record this information
on the PLC Communications Worksheet.
Figure 4.7
PLC
Communications W
orksheet
PLC Communications Worksheet
Application File Name:
PLC/Scanner Type:
Baud Rate: 57.6K (10,000 Ft) 115.2K (5,000 Ft) 230.4K (2,500 Ft)
Note: You must make at least one rack assignment. Additional rack assignments (up to a maximum of 8)
are optional. Write in the Rack Number and circle appropriate Rack Size, Starting Module Group, and
Last Rack designation.
Rack Assignments
Rack Number Rack Size
Starting Module Group Last Rack
1/4 1/2 3/4 1
0 2 4 6
YN
Note: Block Transfers are optional. Circle the Block Transfer File Number, write in one of the rack numbers
from above, circle the appropriate Module Group and Byte, and fill in the Block Transfer file size.
Block Transfer Assignments
Block Transfer
File Number
Module Group
0 1 2 3 4 5 6 7
Hi Lo
30
Byte
Rack
Number
No. Words
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
Pass–Through
1
2
4
5
0 1 2 3 4 5 6 7
3
0 2 4 6 Y N
1/4 1/2 3/4 1
0 2 4 6 Y N1/4 1/2 3/4 1
0 2 4 6 Y N
0 2 4 6 Y N1/4 1/2 3/4 1
0 2 4 6 Y N1/4 1/2 3/4 1
1/4 1/2 3/4 1
0 2 4 6 Y N1/4 1/2 3/4 1
0 2 4 6 Y N1/4 1/2 3/4 1
Hi Lo
Hi Lo
Hi Lo
Hi Lo
PLC Communications
Worksheet
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