ICC ETH-1000, Инструкция по эксплуатации

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8.8.8 M-Bus Master
M-Bus Master can be configured on the RS-485 port by selecting M-Bus Master
from the protocol dropdown menu. The M-Bus Master protocol uses service
objects to make requests. For more information on service objects, refer to
section 8.5. Each service object configures the gateway to match and store data
from a slave’s Request User Data response for read requests and to Send User
Data to the slave for write requests.
8.8.8.1 Protocol Selection Group
Protocol
Select M-Bus Master from this dropdown menu.
Baud Rate
Select the desired network baud rate from this dropdown menu.
Timeout
This is the time in milliseconds that the device will wait for a response from a
remote slave after sending a request.
Scan Rate
This is the time the device will wait between sending requests. This may be
useful if slave devices require additional time between requests. If no additional
delay time is needed, set this field to 0. For more information, refer to section
8.4.
8.8.8.2 M-Bus Service Object Configuration
This section describes the configurable fields for a M-Bus service object. For
more information on M-Bus service object editing options, refer to section 8.6.
Description
This field is a description of the service object. It is not used on the gateway, but
serves as a reference for the user. Enter a string of up to 16 characters in length.
Dest Address
This field indicates the destination address or primary address of the remote
slave device on the network that will be accessed by this service object. Enter a
value between 0 and 250, 254, or 255. Note that address 254 is defined by M-
Bus as the reply broadcast address and 255 is defined as the broadcast address.
If the broadcast address is used, the
Read function checkbox must be
unchecked, as attempts to read a service object targeting destination address
255 will invariably time out.