Rockwell Automation 1769-IT6 Compact I/O 1769-IT6 Thermocouple/mV Input Module User Manual
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Rockwell Automation Publication 1769-UM004B-EN-P - March 2010
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Configuring Your 1769-IT6 Module in a Remote DeviceNet System with a 1769-ADN DeviceNet Adapter Appendix G
Slot 1 appears to the right of the 1769-IT6 module. Click this Slot 1 box and this
1769-IT6 configuration dialog box appears.
By default, the 1769-IT6 module contains eight input words and no output
words. Click Data Description. This shows what the eight input words represent,
that is, the first six words are the actual thermocouple input data, while the
following two words contain status, open-circuit bits and over- and under-range
bits for the six channels. Click OK or Cancel to exit this dialog box and return to
the Configuration dialog box.
If your application requires only the six data words and not the status
information, click ‘Set for I/O only’ and the Input Size will change to six words.
You may leave the Electronic Keying to ‘Exact Match’. It is not recommended to
Disable Keying, but if you are not sure of the exact revision of your module,
selecting Compatible Module will allow your system to operate and the system
will still require a 1769-IT6 module in slot 1.
Each of the six thermocouple input channels are disabled by default. To enable a
channel, click its Enable box so a checkmark appears in it. Then, choose your
Data Format, Input Type, Temperature Units, Open-Circuit Condition, and
Filter Frequency for each channel you are using. See
for a complete description of each of these configuration categories.
In this example, channels 0…5 are being used. All six channels have J-type
thermocouples connected. A 60 Hz filter frequency (the default) is used for all six
channels, along with receiving the thermocouple input data in Engineering Units
x 10. We also chose °F for the Temperature Units. This selection, coupled with
choosing Engineering Units x 10 for the data format allows us to receive the data
into the controllers tag database as actual temperature data in °F.
The Open-circuit Detection is Upscale.