Omron CS1W-ETN21 - Manual (Page 217)

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Command/Response Reference Section 7-3
12. The number of times no window advertisement is received within the time
set on the duration timer. (The duration timer sets the maximum time limit
for a window advertisement to be received if the transmission window is
smaller than necessary and the resend timer is not set. If no window ad-
vertisement is received within the time limit, the number of segments per-
mitted by the transmission window are sent. If the transmission window is
set to 0, a window probe (1 octet of data) is sent before the timer restarts.)
13. The number of times no segment was sent or received within the time set
on the hold timer.
14. The number of times the hold packet is resent. (Always 0.)
15. The number of times the hold packet is sent without response before the
connection is cut off.
2) Send Information (40 Bytes)
Ten information items are returned in the following sequence:
1,2,3... 1. The total number of packets sent.
2. The number of data packets sent.
3. The number of data bytes sent.
4. The number of data packets resent.
5. The number of data bytes resent.
6. The number of ACK packets sent.
7. The number of window probes (1 octet of data) sent.
8. The number of emergency data packets sent. (Always 0.)
9. The number of window advertisement packets sent.
10. The number of control packets (SYN, FIN, RST) sent.
3) Receive Information
Twenty-one information items are returned in the following sequence:
1,2,3... 1. The total number of packets received.
2. The number of packets received continuously.
3. The number of bytes received continuously.
4. The number of received packets discarded due to an incorrect checksum.
5. The number of packets discarded because the TCP header was smaller
than the minimum size for a TCP header or was larger than the IP packet.
6. The number of packets discarded because the TCP header and IP header
could not be stored in the first short buffer.
7. The number of resent packets received.
8. The number of bytes in the resend packets.
9. The number of duplicated resend packets received.
10. The number of bytes in the duplicated resend packets received.
11. The number of out-of-range data packets received. (Always 0.)
12. The number of bytes in the out-of-range data packets received. (Always 0.)
13. The number of packets where the data was larger than the window.
14. The number of bytes in the packets where the data was larger than the win-
dow.
15. The number of packets received after closing.
16. The number of window probe packets received.
17. The number of resent ACK packets received.