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CHAPTER 15 DEDICATED INSTRUCTIONS
15
15.13 ZP.UINI
*1 The E71 enables data exchange to be resumed by clearing the address information of the connected device retained in
the E71 and performing a reinitialization process. (Initial normal completion signal (X19) turns on.)
(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.
[Operation while the UINI instruction is being executed]
• 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.)
Item Description
Completion device (D1)+0:
Turns on at the END process of the scan where the UINI instruction is completed and turns
off at the next END process.
Completion device (D1)+1:
Turns on and off depending on the completion status of the UINI instruction.
• Normal completion: Stays off and does not change.
• Abnormal end: Turns on at the END process of the scan where the UINI instruction is
completed and turns off at the next END process.
Internal process of the E71
Open completion signal
(address: 5000
H
)
Close process
Reinitialization specification
(address: 1F
H
(b15))
Processing reinitialization
Abnormally ended
Program
UINI instruction
Completion device
Completion device + 1
Requesting
reinitialization
Initializing the module
Scan
END
process
Scan
END
process
Scan
END
process
Scan
END
process
Scan
Initial normal completion
signal (X19)
Executed
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