W&T 58031, Руководство пользователя

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W&T
The base configuration of the Com-Server
Subject to error and alteration
7.4 Menu ...
r
TCP/IP Mode
r
System Options
In this menu branch you can set specific system parameters.
n
Network Delay [10ms-Ticks]
Default: 0000
This value specifies the minimum delay time of the Com-
Server after serial data have arrived. After this time has
expired, it packs the data into a network packet and sends
them to the respective communications partner. The default
setting 0 means the attempt is made to send the data as
quickly as possible. The resulting high time transparency
does however bring with it the drawback of a higher number
of network packets.
If the serial transmission takes place in predictable block
sizes, this value can be adjusted to optimize the network
load. There is also the advantage that the serial blocks are
transmitted within a network packets, so that they arrive at
the receiver bundled.
Example:
You are using serial data blocks of 25 bytes each and
transmission parameters of 9600 baud, 8 data bits, no
parity and 1 stop bit. Each block thus has a length of
approx. 26ms (1/9600 * 10 bits * 25 bytes). If the network
delay is set here to a value of 3 (=30ms), each block is sent
to the receiver with a network packet.
1
The situation described here applies only to a non-
overloaded and error-free network. If there are
interruptions in the data flow on the network side, any
serially accumulated data are also sent in larger network
packets.