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36
Preliminary Operating Considerations
Module Addressing
SLC 5/0X
Data Files
Slot e
Output Image
Slot e
Input Image
Publication 1746-UM614B-EN-P - September 2007
The following memory map shows you how the SLC processor's
output and input image tables are defined for the module.
Memory Map
Thermocouple
Module Image
Table
Output Scan
Output Image
8 Words
Input Scan
Input Image
8 Words
(Class 1)
Output Image — Configuration Words
Eight words of the SLC processor's output image table are reserved for
the module. Output image words 0...3 are used to configure the
module's input channels 0...3. Each output image word configures a
single channel, and is referred to as a configuration word. Word 5 is
used for calibration. Each word has a unique address based on the
slot number assigned to the module. (The remaining three words are
not used.)
Example Address — If you want to configure channel 2 on the module
located in slot 4 in the SLC chassis, your address would be O:4.2.
Bit 15
Channel 0 Configuration Word
Channel 1 Configuration Word
Channel 2 Configuration Word
Channel 3 Configuration Word
Calibration Word
Output Image
Words 4, 6, & 7
(not defined)
Channel 0 Data Word
Channel 1 Data Word
Input Image
Channel 2 Data Word
Channel 3 Data Word
Channel 0 Status Word @
Channel 1 Status Word @
Channel 2 Status Word @
Channel 3 Status Word @
Bit 15
@ returns calibration status during calibration
Slot
File Type
O : 4 . 2
Element Delimiter
Word Delimiter
Bit 0
Ad
Word 0
Word 1
Word 2
Word 3
•
Word 5
•
Word 7
Ad
Word 0
Word 1
Word 2
Word 3
Word 4
Word 5
Word 6
Word 7
Bit 0
Word
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