Macurco MRS-485 Modbus RS-485 Adapter
REV – 1.0
[34-2900-0019-7]
15
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P a g e
4.1
Macurco NPU Software
Macurco Network Parameter Utility software can be used to set the BRS-485 to desired address, change the
communication protocol and communication settings. This software can also be used to update BRS-485 with
any latest firmware release from Macurco. Figure 4.1 shows the screen of NPU software when a device is
connected. As shown in the Figure, it displays the device name (BRS-485) with device configuration version
(V1.0DS) under it. Fields greyed out are read-only.
Protocol- Factory default for this field is BACnet. Click on drop down list to select appropriate communication
protocol. Modbus, BACnet, Metasys and Siemens are protocol supported by BRS-485.
Address - The address of the device in the network. This setting is not available for BACnet.
MAC Address: Defines the address (0-127) that the BRS-485 (node) will reside on the network. This setting is
available for BACnet only.
Baud Rate - Baud rate of the network.
Parity - Parity for the communication.
Response Delay: Time in milliseconds that the driver waits before responding to master requests. If no delay is
required, setting this field to 0 instructs the driver to send its response as soon as possible. This setting is not
available for BACnet.
APDU Timeout - The time in milliseconds that the driver will wait for a response from a device after sending a
request. This setting is available for BACnet only.
A number of APDU Retries - The number of times the driver will retry a request when a response is not received.
This setting is available for BACnet only.