Omron CS Series Operation Manual page 264

Buffer Configuration
Network Memory
Most of the buffers used for communications servicing by the Ethernet Unit are administered in a buffer config-
uration called network memory. Network memory consists of 248K bytes of memory divided into short and long
buffers. The use of short and long buffers is determined by the status of the various services when the Ethernet
Unit is running. The capacity of all buffers cannot be used due to limits in the mounted memory capacity. The
status of the short and long buffers can be accessed by execution the FINS command MEMORY STATUS
READ (2763).
Note 1. The status of UDP and TCP socket reception request buffers can be accessed by executing the FINS
command SOCKET STATUS READ (2764).
2. The status of UDP and TCP socket send request buffers can be accessed by executing the FINS
command SOCKET STATUS READ (2764).
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Appendix B