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(4) Precautions for the use of Q4ARCPU
The redundant function cannot be used.
(5) Restrictions on use of the FXCPU
(a) When the FXCPU is used, access to the TN devices (timer present values) or
CN devices (counter present values) is not permitted if the device numbers
specified are split across 199 or earlier and 200 or later.
(b) As the FXCPU does not have a PAUSE switch as the programmable
controller CPU, an error is returned if remote pause is specified in
SetCpuStatus.
(c) Note that specifying the first I/O number of a non-existing module and
executing the WriteBuffer( ) method will not return an error.
(d) For the index registers (Z, V) of the FXCPU, data cannot be written to 2 or
more consecutive points using WriteDeviceBlock(). (Data may be written to
only one point.)
(6) Serial communication function of Q00UJ/Q00/Q00U/Q01/Q01U/Q02U/CPU*1
When the following conditions are all satisfied, communication between the
personal computer and the serial communication function compatible CPU is
made at 9600bps speed.
*1: In this paragraph, "serial communication function compatible CPU" indicates
Q00UJ/Q00/Q00U/Q01/Q01U/Q02UCPU.
1) The serial communication function of the connected CPU is valid.
2) The personal computer side transmission speed setting differs from the serial
communication function compatible CPU side transmission speed setting.
To increase the communication speed, match the personal computer side
transmission speed with the serial communication function compatible CPU side
transmission speed.
(7) Precautions for the use of Built-in Ethernet port CPU
If you reset the programmable controller CPU during TCP/IP connection setting
(during opening) using MX Component, a communication or receive error will
occur at the time of communication after that. In that case, close the application
that uses MX Component and then perform open processing again.
(8) Precautions for the use of QSCPU
In order to protect the safety programmable controller system, functions writing to
buffer memory, writing and setting devices and writing clock data cannot be
executed.
Instructions for use of other MELSOFT products
(1) About simultaneous use of MX Component and GX Developer
When using GX Developer and MX Component together for the same E71
module to make Ethernet communication, make the following settings.
(a) Set the protocol of the communication setting wizard screen to "UDP/IP".
(b) Set "SW2" of the communications setting switches of the E71 module to OFF
(binary).