6-channel RTD Input Industrial Module with 3-wire Lead Resistance Elimination using the DCON Protocol. The I-7015 is a series of 6-channel RTD input modules that are used for measuring temperatures using RTD sensors and each channel can be connected to a different type of sensor. The I-7015P/M-7015P is specifically designed for long-distance RTD measurement, and features automatic compensation for three-wire RTD, meaning that accurate measurement..