Configuring and Parameter Assignment the CP 440
5.4 Configuration data
Point-to-point connection CP 440 Installation and Parameter Assignment
Manual, 09/2007, A5E00057742-03
77
Protocol Parameters
You can only set the protocol parameters if you have not set the default values in the
protocol.
Table 5-11 Protocol Parameters (3964(R) Procedure)
Parameters Description Value Range Default
Value
20 ms to 65535 ms in 10-ms increments
The shortest character delay time depends
on the baud rate:
Character delay
time (CDT)
The character delay time defines the
permissible maximum interval between
two incoming characters in a message
frame.
• 300 bps
• 600 bps
• 1200 bps
• 2400 to 15200 bps
• 60 ms
• 40 ms
• 30 ms
• 20 ms
220 ms
20 ms to 65535 ms in 10-ms increments
The shortest acknowledgment delay time
(ADT) depends on the baud rate:
Acknowledgement
delay time (ADT)
The acknowledgment delay time defines
the maximum amount of time permitted for
the partner's acknowledgment to arrive
during connection setup (time between
STX and partner's DLE acknowledgment)
or release (time between DLE ETX and
partner's DLE acknowledgment).
• 300 bps
• 600 bps
• 1200 bps
• 2400 to 15200 bps
• 60 ms
• 40 ms
• 30 ms
• 20 ms
2000 ms
(550 ms
with 3964
without
block check)
Setup attempts This parameter defines the maximum
number of attempts the CP 440 is allowed
in order to establish a connection.
1 to 255 6
Transmission
attempts
This parameter defines the maximum
number of attempts to transfer a message
frame (including the first one) in the event
of an error.
1 to 255 6
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