www.fanox.com Rev.26 100/1885.9. Programmable Logic Control & Digital OutputsFirstly, it is defined the concept of physical input, physical output and logical signal.Physical inputs are the real inputs of the device. SIA-C device has, depending on model, up totwo physical inputs (Input 1 and Input 2). These inputs are translated to two internal binarystates which later, can be assigned to logical signal to get a specific operation.Physical outputs are the real outputs of the Device. SIA-C has a trip output (not configurable)and up to three digital outputs (Output 2, Output 3 and Output 4). Besides, the relay has 3configurable LEDS, which receive the same treatment as the physical outputs, some workingon output relays and others working on led diodes.Logical signals are internal binary states result of the Programmable Logic Control. The logicalsignal has a specific and defined meaning to be used by the rest functions of the Device.LEDsLED 1LED 2LED 3PHYSICALOUTPUTSGENERAL TRIP (NOT CONFIGURABLE) (*)Output 2Output 3Output 4LOGICALSIGNALSBlock 50PBlock 50NActive settings group 1Active settings group 2(*) NOTE: In spite of being possible to configure the trip output, the relay does not take intoaccount this configuration, because this output must adapt how it works to the associated tripmechanism.All the outputs (Leds, physical outputs and logical signals) are the result of aPROGRAMMABLE LOGIC CONTROL which can be configured from HMI or from SIComsoftware.For each output there is a LOGICAL GATE. It can perform a logical operation up to 4 binarystates to obtain other binary result.
