Allen-Bradley Compact 1769-IR6, Руководство пользователя

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Publication 1769-UM005A-EN-P
Configuring Your 1769-IR6 RTD/resistance Input Module in a Remote DeviceNet System with a 1769-ADN DeviceNet Adapter D-5
By default, the 1769-IR6 module contains eight input words and no output
words. Click on the “Data Description…” button. This shows what the
eight input words represent, i.e. the first six words are the actual RTD
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 screen and return to the Configuration screen.
If your application only requires the six data words and not the status
information, click the “Set for I/O only” button 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-IR6
in slot 1.
Each of the six RTD input channels are disabled by default. To enable a
channel, click its Enable box so a check mark appears in it. Then, choose
your Data Format, Input Type, Open Circuit selection, Cyclic Lead
Resistance, Excitation Current, and Filter Frequency for each channel you
are using. See Channel Configuration on page 4-6 for a complete
description of each of these configuration parameters.
In this example, all six channels are used. Channels 0 through 3 have 100
ohm Platinum 385 RTD sensors connected and channels 4 and 5 have
1000 ohm potentiometers connected. A 60Hz Filter Frequency (the
default) is used for all 6 channels.
The RTD input data is in Engineering Units x 10. We also chose degrees F
for the Temperature Units for channels 0 through 3. This coupled with
Engineering Units x 10 as the data format for these four channels, allows
us to receive the data into the controllers tag database as actual
AB PLCs