March 2010
Monthly Archive
ZEN Version2 for Automatic Small-scale Control
Easy and Simple Programming in Automation control system
Saves space,
wiring and installation steps
Versatile functionality in a compact (70 mm wide ื 90 mm
high).
This unique unit allows easy relay, timer, counter, and timer functions. Wiring work is considerably reduced since no separate cabling required for devices like timers and counters.
Simple programming
The LCD is available with 8 operation buttons on the front of Ladder programming format allows. The LCD has a backlight, making it easier to see when the ZEN used in dark places.
Note: Not supported for ZEN models oC2oo-o-V2. (more…)
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Fundamental PLC Logic level Inputs
PLC Logic inputs
Figure 6 shows a typical logic input level typical role of a logic gate or a microprocessor or microcontroller. Logic inputs are versatile they are linked to many types of
devices, contact closure as a pullup resistor is included. (All products Industrologic inputs have a logical
high-level pull-up resistor.)
Inputs with logic level can also be used by other devices of similar voltage logic level (usually 5 volts.) This is possible, even with a high-pull-up resistor if not a source of power is not the driving signal can fall It All are trained on the ground. (more…)
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Fundamental Source and sink for PLC
Source and sink
The terms “good” and “well” at the bottom of which flows in the direction of the flow as a signal “runs” or activation of a signal. a simplified representation of the output circuits of a logic gate. The circuit uses two transistors, but one lit at all times.
* When the transistor is switched “On” is the question of a “source of power supply voltage of the logic gate, and is a strong” logic “level.
* When the transistor is switched “B”, the output of a current sink to the ground following the logic gate, and represents a low “logical level.
It is important that most logic gates can remember, “the source” and “good” a very small amount of current, typically of the order of several milliamps, sufficient to relays, LEDs and other devices operate directly. (more…)
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