4. Configuration
42
The following pictures depict the difference between the sending of an immediate and a calibrated
ACK:
ATTENTION;
The NX3004 and NX3005 CPUs have a slightly different behavior. They don’t consider the value
configured on the parameter Initial Time out, they consider only the communication Time out. Even
so, the value configured for communication Time out is used when it’s inferior to 3 seconds and it’s
never going to be doubled on retries. But when the communication time out parameter is superior to
3 seconds, they ignore this value and consist the initial value of 3 seconds and double each retry.
Figure 4-2. Example of an Immediate ACK Sending (=0)
Figure 4-3. Example of a Calibrated ACK Sending
ATTENTION:
All operational systems with support to TCP/IP protocol network interface have equivalent
parameters to the discussed in this chapter for the Nexto Series CPUs Ethernet interface. In the
Windows ® operational system, these parameters are defined in the system registers, under several
different identifications, and must be modified only by network administrators, thus affect all
programs and applicative installed under the operational system.
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