05/06 AWB2724-1584GB
9
2Setup
Inputs
Table 1: Type and number of inputs
Inputs I7, I8, I11, I12 can also be used as analog inputs. They are
selected in the user program by means of the appropriate syntax
used in the PLC configurator.
When programming the inputs as digital inputs in the user
program, the input voltage of 8°V forms the limit value for the
TRUE/FALSE signals.
Technical data: a Appendix
Inputs I1, I2, I3, I4 can be used for:
• generating interrupts (inputs I1, I2, I3, I4)
• controlling high-speed counters such as:
– 16 or 32-bit counters, for counting pulses (I1, I2), up/down
counting
– Incremental counters, 32-bit, for processing the signals of an
incremental encoder (I1, I2, I3, I4).
The function is selected in the PLC configuration. However, several
functions cannot be used at the same time.
Figure 1: Front of the EC4P-221-MRAD1,
Legend a figure 2
Figure 2: Front of the EC4P-221-MTAD1
a 24 V DC power supply
b Inputs
c Interface for connecting the CAN network
d Analog output, 0 – 10 V (not active)
e DEL button
f ALT button
g RUN/STOP/SF LED
h CAN/NET LED
i Field for device labelling
j Interface for expansion (not active)
k Programming interface for connection to a PC
l Universal interface for adapter with memory card
m Relay outputs
n Transistor outputs
o OK button
p ESC button
q LCD display (EC4P-22x-M…D1)
r Four-way rocker switch with function buttons P1-P4
Q1 Q2 Q3 Q4 Q5 Q6
RUN
STOP
SF
CAN/
NET
e
abd
c
f
g
h
i
j
k
l
p
r
o
m
q
Q7 Q8Q5 Q6Q3 Q4Q1 Q2+24V 0V
RUN
STOP
SF
CAN/
NET
e
abd
f
g
h
i
j
k
l
p
r
o
n
q
c
Digital 12 (I1…I12) 24 V DC
Of which can be used
as analog
4 (I7, I8, I11, I12) 24 V DC/0…10 V
Figure 3: Selection between digital and analog input, e.g. I7
Voltage [V] State
F 8 FALSE
>8 TRUE
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