Download 10 - Converting Systems Inc.

1769-HSC Module with CompactLogix Controllers and an Allen-Bradley 845F Encoder
B-7
click on the plus sign to the left of Local:4:C. A Reserved tag
along with a Data tag are displayed. We need only be concerned
with the Data tag. This is where we enter our configuration
parameters for the 1769-HSC module.
2. Expand Local:4:C.Data by clicking its plus sign. A configuration
tag with a length of 198 words is displayed, but only the first 118
words are needed to configure the 1769-HSC module. This 118
word configuration file is shown in Table 4.3. Word 0 in Table
4.3 corresponds to Local:4:C.Data[0], Word 1 corresponds to
Local:4:C.Data[1] and so on.
It is best to configure the module in your offline project, then
download the project to your CompactLogix controller. This is
due to the fact that configuration files are downloaded to the
I/O modules only at download, when an inhibited module is
uninhibited and at power up. For this example, we will
configure the module to operate in the following way:
Configuration Parameter
Value
Number of Counters
1
Maximum Count Value
1,200,000
Minimum Count Value
0
Scalar
1
Update Time Value
1
Operational Mode
Quadrature encoder X 4
Ring Counter Two Ranges
Range0
Maximum Value: 600,000
Minimum Value: 500,000
Control Output 0 with this range
Range Type: Count Value
ToThisCounter: 0
Range1
Maximum Value: 1,200,000
Minimum Value: 1,000,000
Control Output 1 with this range
Range Type: Count Value
ToThisCounter: 0
Publication 1769-UM006A-EN-P - March 2002