Chapter 3 Analog Output Module AH04DA/AH08DA 3.2.4 Arrangement of Terminals 3.2.5 Functions HWCONFIG, built-in utility software in ISPSoft, can be used to set a module. Users can set modes and parameters by means of HWCONFIG. 1. Enabling/Disabling a channel A digital signal is converted into an analog signal at a speed of 150 μs a channel. The total conversion time is 150 μsЧ(the number of channels). If a channel is not used, users can disable it to decrease the total conversion time. 2. Calibration To make a curve meet actual needs, users can calibrate the curve by changing an offset and a gain. A calibration range depends on a range of outputs which can be sent by hardware.
A volt is a unit of calibration for offsets if outputs sent are voltages. A milliampere is a unit of calibration for offsets if outputs sent are currents. The range of offsets used for calibration is -1.0~1.0, and the range of gains used for calibration is 0.9~1.1. Example 1: The outputs sent by a channel are voltages in the range of -10.0 V to +10.0 V. The original signals are used. The gain is 1, and the offset is 0. The digital value received by the channel is 0, and the voltage measured is -0.05 V.
The digital value received by the channel is 10, and the voltage 3-7 AH04DA-5A AH08DA-5A AH08DA-5B AH08DA-5C 04DA RUN ERROR VO0 AG IO0 SLD VO1 AG IO1 SLD VO2 AG IO2 SLD VO3 AG IO3 SLD UP ZP SG SG -10~+10V 0/4~+20mA 08DA RUN ERROR IO0IO4 VO0VO4 AG AG IO1IO5 VO1VO5 AG AG IO2IO6 VO2VO6 AG AG IO3IO7 VO3VO7 AG AG SG SG UP ZP -10~+10V 0/4~+20mA 08DA RUN ERROR VO0 AG VO1 AG VO2 AG VO3 AG VO4 AG VO5 AG VO6 AG VO7 AG UP ZP SG SG -10~+10V 08DA RUN ERROR IO0 AG IO1 AG IO2 AG IO3 AG IO4 AG IO5 AG IO6 AG IO7 AG UP ZP SG SG 0/4~20mA 08DA RUN ERROR VO0 AG VO1 AG VO2 AG VO3 AG VO4 AG Item Function Description 1 Enabling/Disabling a channel 1. Users can enable or disable a channel. 2.
If a channel is disabled, the total conversion time is decreased. 2 Calibration Users can calibrate an analog output curve. 3 Scale range A digital range corresponds to an analog range. 4 Retaining an output When a module stops running, a signal sent by the module retained.