Mitsubishi Electric QJ71E71-100 User Manual page 117

*1 When the initial process is not completed, the protocol setting data cannot be written to the flash ROM. Before writing
the data, set the network parameters and check that the initial process is completed.
(The initial process completion can be checked using Initial normal completion signal (X19).)
● When writing the data to the Redundant CPU, pay attention to the followings:
• To write the data, connect directly to the CPU module or connect via an intelligent function module on a main base
unit; connection via an intelligent function module on an extension base is not available.
• Select "Not specified" for Target System in the Transfer Setup of GX Works2. When the Target System is
specified, an error occurs in the CPU module.
• A system switching during data writing may cause the data not to be written to the flash ROM.
Change the operation mode of the Redundant CPU to separate mode before writing to prevent such situation from
occurring.
If a system switching has occurred during data writing, write the data to the flash ROM again.
● The following data cannot be read out because they are not written to the E71. However, when the protocols are selected
from the Predefined Protocol Library, the followings can be displayed.
• Manufacturer
• Packet Name
• Protocol Detailed Setting Type, Version, Explanation
• Packet Setting Element Name
● Module Selection using the Predefined Protocol Support Function is available only when "Not Specification" is set in the
Transfer Setup of GX Works2.
When other station is specified, the E71 specified in the Transfer Setup of GX Works2 becomes the target module.
● Protocols can be executed only when the target connection is in the following status:
• When Open completion signal is on
• When "Predefined protocol" is set to Fixed Buffer Communication in the open setting
If the protocol is executed to the connection where the above conditions are not satisfied, the ECPRTCL instruction ends
abnormally.
CHAPTER 11 DATA COMMUNICATIONS USING THE PREDEFINED PROTOCOL
5.
Write the protocol setting data to the flash ROM.
[Online]
Select a target module and write the protocol setting
data to the flash ROM.
6.
Execute the protocol by using a dedicated
instruction.
Execute the protocol written to the flash ROM by using
the dedicated instruction (ECPRTCL instruction).
[Write to PLC...]
*1
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