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(5) Unlocking password when using QJ71E71
The range where the password can be unlocked by remote operation is up to the
connection target station.
If the password is set also on the lower layer, communication cannot be made
with the programmable controller CPU on the lower layer.
AAAA
Starting
source
1)
QJ71
E71
QCPU
(Q
mode)
2)
QJ71
E71
5)
QJ71
E71
4)
QJ71
E71
QCPU
(Q
mode)
3)
QJ71
E71
1)
2)
3)
4)
5)
Ethernet
Ethernet
Without setting
1) Unlocking QJ71E71 password enables
access to Programmable controller CPUs in this range.
: Accessible
: Inaccessible
Enter password to
unlock.
QCPU
(Q
mode)
QCPU
(Q
mode)
No.
Remote Password
With setting (AAAA)
Without setting
With setting (AAAA)
With setting (BBBB)
(6) About use of the Q4ARCPU
When using the UDP/IP protocol of Ethernet communication, use the Q4ARCPU
whose year and month of manufacture is "0012" or later and whose function
version is B or later.
(7) About Ethernet communication
(a) When access is made to the QnACPU, AnUCPU, QCPU (A mode) or motion
controller CPU via the E71, the device range is equivalent to that of the
AnACPU.
(b) When making access to the programmable controller CPU through Ethernet
communication, the functions may not be executed depending on the
programmable controller CPU status.
1) When the protocol is TCP/IP (target module: E71, QE71)
The functions can be executed only when the communication target
programmable controller CPU is in the RUN mode.
An error is returned if the programmable controller CPU is in other than
the RUN mode.
2) When the protocol is UDP/IP (target module: E71, QE71)
The functions cannot be executed until the communication target
programmable controller CPU is RUN once.
An error is returned if the programmable controller CPU has not been
RUN once.
(c) The communication line is broken if the CPU becomes faulty or the Ethernet
module is reset during Ethernet communication (when the protocol is TCP/IP).
In that case, perform line close processing (Close) and then execute reopen
processing (Open).