Rockwell Automation T80004 Application Note Field Loop Configuration - Manual (Page 9)

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AN-T80004 Field Loop Configuration
Issue 10 Jun 13 AN-T80004 9
Millivolt inputs
The T8840 allows a block of eight channels of a T8431 to be connected to thermocouple, RTD or other
millivolt inputs using plug-in converters. It requires a VFTA cable TC-211, 212, 511 or 512, which
provides separate plugs for each group of channels. This can be wired via a VFTA T8842 allowing
some channels of the module to be used for current loops. Configuration options are given in PD-8840.
The T8841 is similar to the T8840 but is specially designed for RTD inputs.