Siemens 6ES5421-8MA12

Siemens 6ES5421-8MA12 Description:

Sales Manager: Sandy Lin

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XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. is a company that professionally engaged in large system DCS spare parts supply. We supply DCS, PLC, MOTOROLA MVME, Anybus, RTU, IPC, IPC, SCSI (50, 68, 80Pin), AnyBus (Gateway) is a high-tech enterprise specialized in professional sales of industrial automation components, and is committed to improving the level of world automation parts supply.

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XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. always make the best staff and spare parts together, professional multilingual service team, adhere to provide customers with first-class service.

Company products cover DCS control system card, programmable PLC module SPS / CNC panel controller / inverter / server driver and various parts of the robot.

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Siemens 6ES5421-8MA12

Siemens 6ES5421-8MA12

Siemens 6ES5421-8MA12

If M1 is rewired to another connection in another discrete output, the
address that turns it ON and OFF will change. Consequently, the
control program must be changed, since there can be only one
reference address per discrete field output device connection.
Discrete output modules receive their necessary voltage and current from
their enclosure’s back plane (see Chapter 4 for loading considerations). The
field devices with which discrete output modules interface may differ in their
voltage requirements; therefore, several types and magnitudes of voltage are
provided to control them (e.g., 120 VAC, 12 VDC). Table 6-4 illustrates
some typical output field devices, while Table 6-5 lists the standard output
ratings found in discrete output applications.
AC output circuits, like input circuits, vary widely among PLC manufacturers,
but the block diagram shown in Figure 6-36 depicts their general
configuration. This block configuration shows the main sections of an AC
output module, along with how it operates. The circuit consists primarily of
the logic and power sections, coupled by an isolation circuit. An output
interface can be thought of as a simple switch (see Figure 6-37) through
which power can be provided to control an output device.

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