Rockwell Automation AB quality Allen-Bradley 1746-INT4 User Manual page 20

20 Quick Start
Input Image
Address
O:1.0
O:1.1
O:1.2
O:1.3
•
•
•
O:1.7
Publication 1746-UM614B-EN-P - September 2007
6. Set up Channel 0.
Determine the operating parameters for channel 0. This example
shows the channel 0 configuration word defined with all
defaults (0) except for the channel enable (bit 11=1). Module
assumed in slot 1. (For details on channel configuration, refer to
the configuration worksheet on page 22).
SLC 500 Controller
Data Files
Output Image
(8 words)
Channel 0 Configuration Word
Word 0
Channel 1 Configuration Word
Word 1
Channel 2 Configuration Word
Word 2
Channel 3 Configuration Word
Word 3
•
Calibration Word 5
•
•
Words 4, 6, & 7
(reserved)
Word 7
7. Program the transfer of the configuration word.
Program the transfer of the configuration word (from step 6) to
the module.
a. Using the memory map function, create integer file N10.
Integer file N10 should contain one element for each channel
used. (For this example, we used N10:0.).
b. Enter configuration parameters for channel 0 (from step 6)
into N10:0.
In this example, all of the bits of N10:0 are zero except for the
channel enable bit (N10:0/11).
c. Program a ladder logic instruction to copy the contents of
N10:0 to output word O:1.0.
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Use Default Settings For:
• Type J Thermocouple
• Engineering Units x 1
• Data Word = 0 If Open Circuit
• Degrees Celsius
Bit 15
0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
Example Settings for Channel 0.
Set this bit (11) to enable channel. Address = O.1.0/11.
Bit 0