47
Range
- 0,00....655,35 [s]
Default
value
1
[s]
Comments
- n/a
8.2.5.1.1.3. Channel reservation time
Function
- Defines (in seconds) the time of reservation of exclusive
transmission channel to device from which the frame was
received.
Data type
- number
Range
- 0,00....655,35 [s]
Default
value
0
[s]
Comments
- This parameter helps setting an exclusive transmission channel
to one of remote devices for a period of time. This enables
establishment of a system consisting of several devices with
functionalities similar to point-to-point. When a channel is
established, module ignores packets received from other
devices and all data received at PORT 2 are sent to the module
with which the channel is established. Transmission costs are
thus reduced significantly. Packets are sent to all recipients
only at first transmission. The function is activated by setting
the value other to than zero thus defining the time channel is
reserved. Time count starts from receiving first GPRS packet.
Consecutive packets from same source prolong reservation
time while sent packets do not.
Setting this variable to 0 switches reservation off and module
operates in standard way sending and receiving packets to all
defined recipients.
8.2.5.1.1.4. Routing
Function
- enables choosing method of recording recipients address in
transmitted data frame.
Data type
- number
Range
-
n/a
Transparent mode without routing
8 bit Address
The Address is 8 bit long (one byte)
16 bit HL Address
The Address is 16 bit long (two bytes) in sequence „High”
and „Low” byte
16 bit LH Address
The Address is 16 bit long (two bytes) in sequence „Low”
and „High” byte
Default
value
n/a
Comments
- setting the parameter to
n/a
switches routing off
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