Mitsubishi Electric QJ71E71-100 User Manual page 280

(3) Functions
• This instruction re-initializes the module specified by Un.
• Completion of the UINI instruction can be checked with Completion device (D1)+0 and (D1)+1.
• Completion device
(D1)+0:
• Completion device
(D1)+1:
[Operation while the UINI instruction is being executed]
Close process
Program
Initial normal completion
signal (X19)
Open completion signal
(address: 5000 )
H
UINI instruction
Completion device
Completion device + 1
Reinitialization specification
(address: 1F (b15))
H
Internal process of the E71
• The ZP.UINI instruction is executed on the rising edge (OFF ON) of the reinitialization command.
To re-initialize the E71, note the following.
• Terminate all data communications with connected devices, check that all connections are closed, then
re-initialize the E71.
• Do not perform a reinitialization process using both direct writing to the buffer memory and the UINI instruction.
Also, do not request another reinitialization process while reinitialization is being performed.
• When the IP address of the E71 has been changed, reset that of the connected device as well. (If the connected
device retains the MAC address of the destination device, the communications may not be continued after the IP
address of the E71 has been changed.)
• In a redundant system, do not change parameters such as IP address and Ethernet operation setting using the
UINI instruction. If changed, normal communications cannot be performed. Change the parameters using a
programming tool.
278
Turns on at the END process of the scan where the UINI instruction is
completed and turns off at the next END process.
Turns on and off depending on the completion status of the UINI instruction.
• Normal completion:
• Abnormal end:
END
Scan Scan
process
Executed
Requesting
reinitialization
Stays off and does not change.
Turns on at the END process of the scan where
the UINI instruction is completed and turns off at
the next END process.
END END
Scan
process process
Abnormally ended
Processing reinitialization
Initializing the module
END
Scan Scan
process