AH500 Module Manual 4. Average Digital values are averaged. The number by which the sum of several digital values is divided is between 1 and 100. The sampled values are taken as a queue, and the length of the queue is N. Each time a new sampled value is put at the end of the queue, an original value at the start of the queue is removed. The N values are averaged so that the periodic noise is suppressed. 5. Disconnection detection If a channel is enabled, the module will check whether a sensor is disconnected. If an input circuit is an open circuit, the module will give an alarm. Please refer to description below for more information. 6.
Channel detection If an input signal exceeds a range of inputs which can be received by hardware, an error message appears. Please refer to section 5.2.1 for more information. a. Giving alarms or warnings The procedure below explains how to set a module so that it gives an alarm or a warning. Channel detection No (No detection) Enabling physical range There are no error logs in the CPU module and the temperature measurement module. detection Yes No (Warning) Giving alarms Yes No The warning LED indicators The BUS FAULT LED indicator on the CPU module and the ERROR LED indicator on the temperature measurement module are ON.
There are error logs in the CPU module and the temperature measurement module. blink. Yes The BUS FAULT LED indicator on the CPU module and the ERROR LED indicator on the temperature measurement module are not ON. There are error logs in the CPU module and the temperature measurement module. The BUS FAULT LED indicator on the CPU module and the ERROR LED indicator on the temperature measurement module blink. There are error logs in the CPU module and the temperature measurement module. 5-8