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(2) When using socket transmission (TCP or UDP) with the Ethernet Port
Table A.7 Number of Words that can be Transmitted Using TCP/UDP
Socket Transmission with the Ethernet Port
[When the PC link protocol is not used]
Module classification Processing time for function instructions
Maximum number of words that can be specified in
socket transmission.
PU235N 1 ms (maximum) 1000 words (maximum)
2 ms (maximum) 927 words (maximum)
3 ms (maximum) 712 words (maximum)
4 ms (maximum) 497 words (maximum)
5 ms (maximum) 282 words (maximum)
PU245N 1 ms (maximum) 978 words (maximum)
2 ms (maximum) 763 words (maximum)
3 ms (maximum) 548 words (maximum)
4 ms (maximum) 333 words (maximum)
5 ms (maximum) 118 words (maximum)
Conditions for the above table:
a. For the T2N configuration, this table assumes the configuration of figure A.4, in which T2N
(PU235N/245N) is mounted in the main base unit.
b. Refer to the T2N User's Manual - Hardware for the processing times for the instructions.
c. This table assumes that for PU245N, 128 words is specified for S20LP PC link protocol
transmission (SEND instruction on local port or RECV instruction from remote ports).
However, if S20LP PC link protocol transmission is not used, use the PU235N row in the
above table, even if there are PU245N unit installed.
d. If less than 128 words are used with the S20LP PC link protocol transmission, the number of
words that can be specified during socket transmission on the Ethernet Port can be increased
over the values listed in table A.7. If the number of words for S20LP PC link protocol
transmission on the PU245N decreased on one word, the number of words for Socket
transmission on the Ethernet Port can increase in one word. However, the maximum number
of words that can be specified during PC link transmission on the Ethernet Port is 1000
words.
T2N
(PU235N/
245N)
With the computer link and
loader not connected
(main base unit)
Figure A.4 T2N Configuration when Using the Socket Interface