Rockwell Automation 1769-IT6 Compact I/O 1769-IT6 Thermocouple/mV Input Module - Manual (Page 37)

Rockwell Automation Publication 1769-UM004B-EN-P - March 2010 37
Chapter
4
Module Data, Status, and Channel
Configuration
After installing the 1769-IT6 thermocouple/mV input module, you must
configure it for operation, usually by using the programming software compatible
with the controller (for example, RSLogix 500 or RSLogix 5000 software).
Once configuration is complete and reflected in the ladder logic, you need to
operate the module and verify its configuration.
This chapter contains information on the following:
• Module memory map
• Accessing input image file data
• Configuring channels
• Determining effective resolution and range
• Determining module update time
Module Memory Map The module uses eight input words for data and status bits (input image), and
seven configuration words.
Channel 0 Data Word Word 0
Word 1
Word 2
Word 3
Word 4
Word 5
Channel 1 Data Word
Channel 2 Data Word
Channel 3 Data Word
General/Open-Circuit Status Bits
Over-/Under-range Bits
Channel 0 Configuration Word
Channel 1 Configuration Word
Channel 2 Configuration Word
Channel 3 Configuration Word Word 0
Word 1
Word 2
Word 3
Input Image
8 words
Configuration
File
7 words
slot e
slot e
Input Image
File
Configuration
File
Memory Map
Bit 15 Bit 0
Channel 4 Data Word
Channel 5 Data Word
Word6
Word 7
Channel 4 Configuration Word
Channel 5 Configuration Word Word 4
Word 5
Module Configuration Word Word 6
TIP Not all controllers support program access to the configuration file. Refer
to your controller’s user manual.