Single: In this mode single values can be read or written.
Streaming (only for the versions “S”): In this mode data-I/O is
done via FIFO. The timing can either be controlled by a timer
and/or external trigger signals. Various trigger options are
available which can be defined as start and stop conditions, see
chapter 4.2.1 on page 33.
Interrupt: For interrupt processing in the modes bit-pattern
change and bit-pattern compare (see chapter 4.3.1 from page
36).
Operating Mode
Speed
Trigger
Single
Single value
Input/output by
software
Stream-timer …with
option "wraparound”
f
Input signal
: to 300
kHz
f
Output signal
: to 3
kHz
Start/stop per
software or ext.
trigger
Stream-trigger-sample
f
Input signal
: to 300
kHz
f
Output signal
: to 3
kHz
Start/stop per
software or ext.
trigger
Interrupt
(Bit-pattern detection)
f
IRQmax
. = 10
kHz
Ext. trigger signal
at a digital-I/O port
Detailed timing pictures can be found in the ME-iDS manual.
4.1 Single Operation Mode
Individual values can be read or written in this operating mode.
Notes:
The digital-I/O channels direction is determined by the ME-5810
series hardware (opto-couplers).
In power-down state and after switching on the PC all outputs
are in a high-impedance state. Only if “1” is written, the output
changes to conductive.
A port that is configured as an output can also be read back!
Содержание ME-5001
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