11 FTP Client
11-8
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
• If you execute more than one FTP client communications instruction to read and write data in an SD
Memory Card at a time, unexpected operation may result, such as reading data from a file to which
data is being written. Perform exclusive control of the instructions in the user program.
• If you execute an FTP client communications instruction to read or write data in an SD Memory Card
at the same time as an operation to read or write data in the SD Memory Card, unexpected operation
may result, such as reading data from a file to which data is being written. Perform exclusive control
of the instructions in the user program. Refer to the NJ/NX-series CPU Unit Software User’s Manual
(Cat. No. W501) for information on exclusive control of file access in SD Memory Cards.