Siemens CP 1243-1 Operating Instructions Manual page 50

Configuration
4.6 Ethernet interface
● Connection monitoring time
Time (in seconds) within which an acknowledgement is expected from the master.
Permitted range: 0...65535
Default setting: 2
If you enter 0 (zero), the function is disabled.
● Transfer mode "Unsolicited"
Transfer mode for events
– Spontaneous
– Conditional spontaneous
● Max. number of unsolicited frames
Maximum number of repetitions of unsolicited frames if no acknowledgement is received
from the communications partner .
Permitted range: 0...255
Default setting: 3
● Monitoring time for unsolicited frames
Time (in seconds) within which an acknowledgement of unsolicited frames is expected
from the master.
Permitted range: 1...65535
Default setting: 5
● Buffer for class 1 / 2 / 3 events
Here, for each of the three event classes you specify the number of events after which
the stored events are sent to the communications partner.
Permitted range: 1 ... 255.
● Delay time class 1 / 2 / 3 events
Here, for each of the three event classes you specify the maximum time in seconds the
events can be stored in the send buffer before they are sent to the communications
partner.
Permitted range: 0 ... 65535
If you enter 0 (zero), the function is disabled.
● Event class for image memory
Selection of an event class in which only the last current values are stored in the send
buffer.
In the default setting all values of events of classes 1 and 2 are stored in the send buffer,
of class 3 only the current values (image memory procedure).
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Event frames are transferred immediately.
Event messages are only sent when spontaneous frames are sent or the partner
establishes the connection.
Operating Instructions, 04/2017, C79000-G8976-C365-03
CP 1243-1