Chapter 4 Installing Hardware
4-3
4.1
DVP-ES3/EX3 Series
4.1.1 DVP-ES3/EX3 Hardware Framework
The DVP-ES3/EX3 series programmable logic controller is a small programmable logic control (PLC). The
execution speed and memory capacity are increased. Use of function blocks is also supported. In order to
meet more advanced application requirements, the DVP-ES3/EX3 series programmable logic controllers
provide more flexible system extension framework. Under such hardware framework, you do not need to use
several CPU modules to control the system if there are excessive I/O points or the device is too far away. This
new hardware framework maintains the integrity of the system and allows users to work more efficiently during
the project development process.
One CPU module is the minimum requirement for DVP-ES3/EX3 hardware framework.
DVP-ES3/EX3 CPU module (the example below uses DVP-ES3 AC power supply model)
X0 X10Ethern et X1 X2 X3 X11 X12 X13 X14 X 15 X1 6 X17S/S X4 X5 X 6
L N
X7
Y0
Y10 Y 11 Y 12 Y13 Y1 4 Y1 5 Y16 Y1 7DDSG Y1 Y2 Y 3 Y4 Y5 Y6 Y7DD
+
+
C0
The following lists the limits for setting up a common framework of the DVP-ES3/EX3 PLC system. Exceeding
the first two limits causes the PLC to send an error message.
Limit 1: The maximum number of digital I/O points is 256. The built-in digital I/O points of the CPU module are
included. If DI points are 200, you have no more than 56 DO points.
Limit 2: You can connect up to 8 modules (AD, DA, XA, PT, TC or PU) to the PLC.
Limit 3: The maximum power consumption of CPU module and extension module should be within the range
of what a CPU module or a power module can supply. Refer to section 4.1.5.4 for the maximum power
consumption of modules.
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