3
FUNCTIONAL COMPARISONS
3
- 2
: Compatible,
: Partially changed, ×: Not compatible
*1
Set the transmission speed with the operation mode selector for the QJ51AW12D2. For the LJ51AW12D2, set it on the
"Switch Setting for I/O and Intelligent Function Module" window.
*2
The waveform output method can be set in the LJ51AW12D2 and the QJ51AW12D2 with a serial number (sixth digit) 6 or
later.
3.2 Master Module Switch Comparisons
Item
Specifications
Compat-
ibility
Precautions for
replacement
MELSEC-I/OLINK
AnyWire DB A20
Number of transmission
points
Set the number of occupied points of
the master module to 16, 32, 48, or 64
points in the I/O assignment of the
parameter.
The number of occupied points of the
master module becomes the maximum
number of connected points.
Set the number of transmission points
of the slave module.
Setting method is changed from setting
of the I/O assignment of parameter to
intelligent function switch setting.
Transmission speed
Setting is not required.
(The communication speed and
transmission distance are fixed.)
Select the transmission speed.
Transmission distance is determined
depending on the transmission speed.
The transmission speed must be set in
accordance with the number of slave
modules to be connected and the total
length of the transmission distance.
*1
Double check mode
-
Double check mode is an error control
system that compares the current cycle
data and the previous cycle data. The
data is valid when the comparison
result matches.
-
Double check mode is a new function
of AnyWire DB A20.
Waveform output
method
*2
Setting is not required.
The transmission waveform is
automatically output by switching the
operating status of the CPU module to
RUN.
(The module always receives input
signals.)
Based on the setting, the transmission
waveform is output by turning on of
Module READY (Xn0) or Transmission
waveform output command (Yn2).
The function of the alternative module
becomes equivalent to the one of the
former module by turning on of Module
READY (Xn0) to output the
transmission waveform.
ON LINE STATION
ON LINE STATION is a switch for
determining whether to use the remote
I/O module or not.
-
Stations to be used (remote I/O module
or slave module) can be determined by
these functions.
The setting method differs between
former and alternative modules.
Automatic address
detection
-
This function allows the master module
to automatically recognize an ID
(address) of a slave module.
Содержание AnyWire DB A20
Страница 1: ...Transition from MELSEC I OLINK to AnyWire DB A20 Handbook Feb 2017 Edition ...
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Страница 27: ...4 REPLACING THE MASTER MODULE 4 2 Memo ...
Страница 76: ...APPX 3 Memo ...
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