75
W&T Configuration of the serial port
Subject to error and alteration
[Baud], [Parität], [Datenbits], [Stopbits], [Handshake]
Possible values for the handshake variables are:
Send filter Receive filter
[N] No handshake --- ---
[H] Hardware handshake --- ---
[S] Software handshake
Xon/Xoff
ON ON
[Special] Special >setting
configuration menu
„Handshake Special“
--- ---
9�1�3 Receive Buffer (InQueue)
The Com-Server is factory configured with a serial input buffer
capacity of 4094 bytes. The sub-menu Receive Buffer allows
you to reduce this to 32 bytes, with only even values permit-
ted.
In most applications the emphasis is on maximum data
throughput, so we recommend not changing the maximum
value of 4094. It does however make sense to reduce the
value when working with serial protocols together with unre-
liable or noisy network connections. This prevents datagram
repetitions from being accumulated on the part of the serial
master when there are connection errors and keeps them
from being sent in bundled form after the connection is re-
sumed.
1
Please ensure that when communicating without
serial flow control the Receive Buffer is at least as large
as required for the longest expected serial data packet.
9�1�4 FIFO Send/Rec (only Com-Server 3x Isolated)
The submenu allows the FIFO memory of the serial receiver
component to be turned on and off. It is recommended that
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