18c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/fault_oc 28c2ecf20Sopenharmony_ciKernelVersion: 5.1 38c2ecf20Sopenharmony_ciContact: linux-iio@vger.kernel.org 48c2ecf20Sopenharmony_ciDescription: 58c2ecf20Sopenharmony_ci Open-circuit fault. The detection of open-circuit faults, 68c2ecf20Sopenharmony_ci such as those caused by broken thermocouple wires. 78c2ecf20Sopenharmony_ci Reading returns either '1' or '0'. 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci === ======================================================= 108c2ecf20Sopenharmony_ci '1' An open circuit such as broken thermocouple wires 118c2ecf20Sopenharmony_ci has been detected. 128c2ecf20Sopenharmony_ci '0' No open circuit or broken thermocouple wires are detected 138c2ecf20Sopenharmony_ci === ======================================================= 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/fault_ovuv 168c2ecf20Sopenharmony_ciKernelVersion: 5.1 178c2ecf20Sopenharmony_ciContact: linux-iio@vger.kernel.org 188c2ecf20Sopenharmony_ciDescription: 198c2ecf20Sopenharmony_ci Overvoltage or Undervoltage Input Fault. The internal circuitry 208c2ecf20Sopenharmony_ci is protected from excessive voltages applied to the thermocouple 218c2ecf20Sopenharmony_ci cables by integrated MOSFETs at the T+ and T- inputs, and the 228c2ecf20Sopenharmony_ci BIAS output. These MOSFETs turn off when the input voltage is 238c2ecf20Sopenharmony_ci negative or greater than VDD. 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci Reading returns either '1' or '0'. 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ci === ======================================================= 288c2ecf20Sopenharmony_ci '1' The input voltage is negative or greater than VDD. 298c2ecf20Sopenharmony_ci '0' The input voltage is positive and less than VDD (normal 308c2ecf20Sopenharmony_ci state). 318c2ecf20Sopenharmony_ci === ======================================================= 32