Manual ME-582x Series
Revision 0.9
1 Introduction
page 7
Meilhaus Electronic
Model overview:
Model
Opto-Dio
Opto-FIO*
Counter
ME-5820
1
x
16
bit
DI
1
x
16
bit
DO
4
FI channels
4
FO channels
3
x
16
bit
ME-5821
2
x
16
bit
DI
2
x
16
bit
DO
4
+ 4
FI channels
4
+ 4
FO channels
3
x
16
bit
Table 1: Model overview ME-5820 series
Alternative configuration can be selected with ME-iDC.
Opto-isolated digital-inputs
: The ME-5820 has 16 opto-isolated in-
puts, ME-5821 has 32 opto-isolated inputs. The inputs run with a volt-
age high level of 5
…60 V (specifications see page 29).
Opto-isolated digital outputs
: ME-5820 has 16 opto-isolated out-
puts, ME-5821 has 32 opto-isolated outputs. The source-driver can
drive up to 370 mA per pin (all 16 outputs active). The detailed specifi-
cations of the sink and/or source drivers can be found on page 29. The
source drivers are short-circuit-proof and are equipped with a current
limiting per channel. If required, the output driver can send an interrupt
on overload to the PC.
A suitable external source is required to supply the output drivers.
Frequency measurement:
With the concept of “configurable subde-
vices” the subdevice 0 and subdevice 5 (ME-5821 only) can also be
used as a frequency counter. Four (8) independent channels are avail-
able to measure the frequency and duty cycle of periodic rectangular
signals (max. 300 kHz)..
Pulse generator:
With the concept of “configurable subdevices” the
subdevice 1 and subdevice 6 (ME-5821 only) can also be used as a
rectangular signal generator. Four (8) independent channels are avail-
able to output a periodic rectangular signal up to 3 kHz with selectable
duty cycle.
Sink/source selection:
You can switch the output ports over from
sink to source drivers or high impedance by software for an optimal
adaption in industrial applicat
ions. “High impedance” means that the
voltage level at the output pin depends on your external application.
Bit-pattern detection:
If required, the bit-pattern at the digital input
port can be monitored. Depending on the mode an interrupt can be
generated, if the bit-pattern changes or is equal/not equal to a given
bit-pattern.
The isolation voltage between the opto-isolated inputs/outputs and
PC-ground is 1 kVAC
RMS
.
The opto-isolated digital inputs of the ME-582x are equipped with an
overvoltage protection diode that can discharge voltage pulses to
ground for a short period of time.
