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Mains Signaling Evaluation Module ION Reference Enable This input enables or disables the module’s operation. If this input is set to FALSE, then the outputs will not be updated, and pulses at the Evaluate will be ignored. This input is optional; if you leave it unlinked, the module will be enabled by default. Evaluate A pulse at this input triggers the module to perform its statistical evaluation, and update its output registers. This input must be linked for the module to go online. Reset This input resets the module’s outputs to NOT AVAILABLE until the next evaluation occurs. Linking this input is optional; if you leave it unlinked, the input will never receive a pulse. Setup Registers Frequency This register specifies the signal frequency of interest. The minimum frequency is 5Hz; maximum frequency differs depending on meter model and firmware. Limit This register specifies the allowable signal voltage threshold as a percentage of the fundamental. EvPriority This register allows you to set a custom priority level to certain events written to the Event output register. When EvPriority is zero, no event is written. Refer to the Event output register description for details. Output Registers Num Valid The number of valid evaluation intervals. Num Invalid The number of invalid evaluation intervals. Num Exceed The number of valid (see Num Valid) evaluation intervals where the specified frequency exceeded the specified limit. Signal Freq Mag The signal frequency magnitude is output to this register when the Evaluate input is pulsed. This register = N/A if the Valid input is linked and is FALSE. Fundamental Freq Mag The fundamental frequency magnitude is output to this register when the Evaluate input is pulsed. This register = N/A if the Valid input is linked and is FALSE. Page 360 © 2008 Schneider Electric. All rights reserved.
