Beckhoff EPP3504-0023 Short Manual page 39

Product overview
R are the internal switchable supplementary resistors of the box module. They have a high resistance of a
3/4
few kΩ compared to R and thus do not significantly load the internal supply.
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Other half-bridge configurations (e.g. R or R variable) cannot be connected.
1/4 1/3
The strain relationship (µStrain, µε) is as follows:
N should be chosen based on the mechanical configuration of the variable resistors (Poisson, 2 active
uniaxial, ...). The channel value (PDO) is interpreted directly [mV/V].
EPP3504-0023 Version: 1.2 39