Technical data
Configuration software for SINAUT ST7
1.6 Configuring networks and network nodes in STEP 7 / NetPro
Software
System Manual, 07/2009, C79000-G8976-C222-07
73
- Input box
Hours
: Entry of the time (hour)
- Input box
Minutes
: Entry of the time (minute)
– Time scheme:
A connection is automatically established and the messages sent at the specified time
intervals. The interval must be entered:
- Input box
Hours
: Entry of the hour value for the send interval
- Input box
Minutes
: Entry of the minute value for the send interval
●
Call answer delay
:
This sets the time that the WAN driver waits before answering an incoming call. This
allows time to answer a telephone call if a telephone is attached parallel with the TIM on
a shared telephone connection. The value 0 means there is no call answer delay.
Range of values: 0 ... 60 s
Default: 0 s
●
Min. connection duration
:
Here, the minimum connection duration of a dial-up connection can be set. This may be
required in fast dial-up networks to be able to wait for the response of subscribers during
a GR before the connection is terminated.
Range of values: 0 ... 65535 s
Default: 5 s
0 means that there is no minimum connection duration.
●
Dialing test interval
:
This specifies the time in minutes for a test interval. A test interval is started when no
connection to a particular subscriber could be established from a master TIM after the
specified number of retries.
Following the test interval, the WAN driver automatically reattempts to establish a
connection to the specified subscriber. If a connection cannot be established, the test
interval starts again. If the test interval is running and the WAN driver gets a new
message to be sent to the disrupted subscriber, it does not wait for the test interval to end
but attempts to establish a connection immediately and to send the message.
Range of values: 0 ... 255 minutes
Default: 5 minutes
●
Cancel delay time
:
This parameter specifies how long a dial-up connection is retained when the send buffers
of the TIM module are full and it can send no further messages or data to the CPU.
All messages received over the WAN interface are acknowledged negatively until this
time has elapsed. Due to the negative acknowledgment of the previously sent message,
the communication partner will repeat the message after the send retry time.
If the cancel delay time has elapsed, the connection is terminated.
Range of values: 0 ...255 seconds
Default: 0
●
Transfer mode:
:
This parameter specifies the form in which ST7 data messages are sent when using the
ST7 protocol.
Range of values:
- transfer data as blocks of single messages
- transfer data as blocks of multiple messages
Default: Single messages