MBS UBR-01 MK II, Руководство пользователя

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Chapter 4 Start-up and operation 34
Serial interface:
Defines the interface of the datalink. In the case of UBR-02 two RS485
interfaces are available.
• COM1
• COM3
Baud rate:
Speed of the MS/TP network suitable for the other MS/TP components in use.
The value is stated in bit/s, possible values are: 1200, 2400, 4800, 9600, 19200,
38400, 57600, 76800 and 115200 baud. The default value is 38400 baud.
Max. master:
The property max. master defines the highest MAC address for master notes
in the MS/TP subnetwork. The possible value range is between 0 and 127,
the default value is 127. If this value is not writeable via BACnet services, it
must be 127.
Max. info frames:
Defines the maximum number of telegrams that a master node may send before
the token has to be forwarded. The possible value range is between 1 and 127,
the default value is 1. Default value 1 causes low level latency. For a higher data
throughput a much higher number is often useful, e.g. 20 for the UBR.
Token timeout:
Defines the maximum duration without a "data available" or "receive error"
event which a node must wait for a remote node so that it can use a token or
answers a "poll for master" request. The possible value range is between 20
and 100 milliseconds, the default value is 20 milliseconds.
Token timeout:
Defines the maximum duration without a "data available" or "receive error"
event which a node must wait for a station so that it can answer a confirmed
request. The possible value range is between 200 and 300 milliseconds, the
default value is 250 milliseconds.
Enable slave proxy operation:
The router can be configured as slave proxy. In the process the UBRs answer
"who is" requests with an "I am" message on behalf of connected MSTP slave
devices.