Analog Output; Jumpering Ofanalog Output; Digitai/Analog Convertersl And2; Rated Output Range And Resolution - Siemens SIMATIC S5 1P 243 Equipment Manual

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Analog Output

3.4
3.4.1 Jumpering of Analog Output
Five channels are available (AO1 to A05) which can be freely distributed via the soldering base. It
is possible to output analog values (provided by the D/A converters) on a certain channel, and
transfer this signal simultaneously to different outputs. In the same way, for instance, the outputs
of the difference amplifiers (P controllers) or conditioned analog values can be directly output as
analog values. Attention must be paid to the input side of the analog output A05 to make sure that
an analog amplifier is connected. It is not only able to amplify the value provided by DAC3, but also
a value which, via an analog input, is present as an actual–value conditioning input on the P con-
troller. Three digital/analog converters, which are described in more detail below, convert binary
values into analog signals.
3.4.2 Digital/Analog Converters 1 and 2

3.4.2.1 Rated Output Range and Resolution

Digital/analog converters DAC1 and DAC2 are systems independent from each other. The resolu-
tion is 11 bits plus sign. Bipolar analog values in the range of *1 O V can be output.
3.4.2.2 Writing the Analog Outputs
binary value should be transferred to DAC1/2 by a word statement to prevent possible peaks du-
ring byte-wise write procedures.
Example: S5 : TPW address
Function Description
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