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Usage Recommendations (continued)
• Computer link protocol transmission
Usage Recommendations
1. Since UDP/IP does not provide control functions to guaranteed communication reliability, higher
level protocols (such as retry) are required.
2. No processing is performed if a computer link protocol and a PC link protocol transmission
messages are received at any point other than a message transmission UDP socket.
5.1 Computer Link Protocol Transmission
5.3 PC Link Protocol Transmission (Data write)
5.4 PC Link Protocol Transmission (Data read)
• Limitations on the T2N SEND and RECV instructions
Usage Recommendations
When using the SEND and RECV instructions:
1. When using fixed period interrupt programs, there are limitations on the number of words that can
be specified.
Appendix 4 Limitations on the T2N SEND and RECV Instructions