Analog I/O Parameters
AKT2G Input Terminals
The offset and gain is applied to calculate the value converted from the analog input:
PLC"Programmable Logic Controller" A Programmable Logic Controller, PLC, or Programmable Controller is a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. Used to synchronize the flow of inputs from (physical) sensors and events with the flow of outputs to actuators and events Variable Value = Analog to Digital Converter Value x Gain + Offset
Where the Gain and Offset are configured from the terminal’s I/O tab.
See also E-Bus Analog I/O Data Representation
AKT2G Output Terminals
The offset and gain is applied to calculate the value to be converted to the analog output:
Digital to Analog Converter Value = PLC Variable Value x Gain + Offset
Where the Gain and Offset are configured from the terminal’s I/O tab.
See also E-Bus Analog I/O Data Representation
AKT Input Terminals
The process data that are transferred to the Bus Coupler are calculated using the following equation:
Ya = ( Ba + XADC ) x Aa
Yout = Bw + (( Aw + Ah ) x Ya )
With the following parameters:
XADC | Output values of the Analog Input Modules A/D converter |
Yout | Process data to the controller |
Ba , Aa | Manufacturer offset and gain compensation ‡ |
Ah | Manufacturer scaling: default gain ‡ |
Bw , Aw | User scaling: Offset and Gain as set in the Analog Input Properties (see image below). |
‡ For the thermocouple input terminals, AKT-AN-200-000 and AKT-AN-400-000, the manufacturer default gain is 160. For all other supported terminals, the manufacturer default gain is 1. The manufacturer default offset is zero for all supported terminals.
AKT Output Terminals
The process data that are transferred to the Bus Coupler from the controller are calculated using the following equations:
Y2 = Bw + (( Aw x Ah ) x X )
Ydac = Y2 x Aa + Ba
X | Controller Process data |
Ydac | Controller data to analog output module D/A converter |
Ba , Aa | Manufacturer offset and gain compensation ‡ |
Ah | Manufacturer scaling: default gain ‡ |
Bw , Aw | User scaling: offset and gain as set in the Analog Output Properties (see image below). |
‡ The manufacturer default offset is zero for all supported terminals. The manufacturer default gain is 1 for all supported terminals.