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With scaling of the measured values, the value corresponding to the technological quantity of the process can be assigned to the physical measured values of the module (current or voltage). The read in measured values of a data cycle are copied to the interface module (IM) of the ET 200MP in the next transmit clock and are available to the processing CPU one transmit clock later.Ī major advantage of Oversampling is that no faster CPU-Cycle is required for recording the high temporal resolution measurements. The module reads in a measured value in each subcycle and saves it. The use of the oversampling function requires an isochronous configuration.įor analog input modules, the preset transmit clock is divided into up to 16 time-equidistant subcycles. Various AI modules of the function classes HF (High Feature) and HS (High Speed) offer additional functions:
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For all analog input modules the components for shielding like power supply element, shield bracket, and shield terminal are included in the scope of delivery
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This means that circuit and wiring diagrams can be universally used. Moreover, the pin assignment in the wiring is unchanged. They also offer the same operability and the same accessories. The modules have the same mechanical structure as the 35 mm modules. The narrow 25mm modules use a front connector with push-in technology which is included in the scope of delivery. Modules with a width of 35 mm can be equipped with a front connector using screw terminal or push-in technology, the connector has to be ordered separately. They are suitable for measuring current (2-wire and 4-wire transducers), voltage, and resistance, as well as for the connection of resistance thermometers and thermocouples (measurement types depend on the module). The narrow 25 mm modules can be mixed with the 35 mm modules as required.Īnalog input modules record process signals such as pressure or temperature and forward them in digitalized format (16 bit format) to the control. The narrow, low-cost modules do not have any parameter assignment or diagnostics, so integration in the engineering is significantly easier.
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Modules with a width a width of 35 mm can be equipped with a front connector using screw terminal or push-in technology, the connector has to be ordered separately. Standard and High Feature modules with enhanced functionality are only available with the 35mm form factor. As a result, ordering, logistics and spare-parts inventory are considerably simplified
SIEMENS SIMATIC S7 1200 DIGITAL OUTPUT SIGNAL MODULE SM122 PROFESSIONAL
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