44
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.7 Types and Setting of Parameters
*1.
This function is supported only in FX
3U
/FX
3UC
PLCs.
*2.
This item is supported only in the FX
3UC
-32MT-LT(-2).
*3.
This item is supported only in the FX
3UC
-32MT-LT-2.
*4.
This function is supported only in FX
3G
PLC.
*5.
The second keyword is supported in all FX
3G
PLCs and FX
3U
/FX
3UC
PLCs Ver. 2.20 or later.
PLC system
setting (1)
[PLC mode]
Batteryless
mode
*1
This parameter sets the PLC operation mode without a battery.
When the baterryless mode is set, detection of battery voltage low level error is stopped
automatically, and consequently, contents of latched devices becomes inconsistent and
are initialized automatically.
Battery
mode
*4
This parameter sets the PLC operation mode with a battery.
When the check box "Use Battery" is checked, general type devices are changed to
latched (battery backed) type devices.
Modem
initialization
This parameter automatically sends a specified AT command as an initialization
command to a modem connected to the serial port.
RUN terminal
input setting
This parameter sets whether one input terminal in the PLC is used for RUN input.
RUN terminal
input number
This parameter specifies the input number of the RUN input described above.
X000 to X017
(X000 to X007 in FX
3U
-16M
, FX
3UC
-16M
and 14-point type FX
3G
PLCs)
(X000 to X014 in 24-point type FX
3G
PLCs)
PLC system
setting (2)
[Serial
communication]
Serial port
operation
setting
This parameter corresponds to the following settings by specifying each contents on the
PC screen:
Setting of communication format (D8120, D8400 and D8420)
Setting of station number (D8121 and D8421)
Setting of timeout check (D8129, D8409 and D8429)
Positioning
setting
Constant
setting
This parameter sets interrupt inputs for the maximum speed, bias speed, creep speed,
zero return speed, acceleration time, deceleration time, and DVIT instruction.
*1
It is necessary to set the memory capacity.
Detailed
setting
This parameter sets the operation table.
It is necessary to set the memory capacity.
Others
Keyword
This parameter sets protection to prevent erroneous read/incorrect write protection of a
sequence program. The keyword and second keyword
*5
can each be specified in 8
characters among A to F and 0 to 9.
In FX
3G
PLCs, the customer keyword (16 characters) and permanent PLC lock can be
specified in addition to the keyword (8 characters) and second keyword (8 characters).
Program title
This parameter enables to set a character string to be used as the program title.
Classification
Item
Description