Table 47:Modbus memory map: Password conguration
Password
Configuration variable
(1)
Address Valid data margin Default value
Password value
(2)
2B70 0 - 9999 1234
Lock-Unlock 2B71
0: Unlock
1: Lock
0
(1)
You must program all the variables at the same time.
(2)
The password value is read and written in hexadecimal.
4.10.4. BACnet PROTOCOL
BACnet is a communications protocol for Building Automation and Control NETworks. This
protocol replaces the proprietary communications of each device, making it a set of common
communication rules that enables the complete integration of the building automation and
control devices of different manufacturers.
The device features BACNet MS/TP communications, following the specications of ANSI/
ASHRAE 135 (ISO 16484-5).
Using a RS485 connection, the device can connect to a BACnet and include all of the objects
and services defined in the attached PICS map (Protocol Implementation Conformance
Statement). ( “4.10.5. PICS MAP”)
The default speed is 9600 bps and the MAC is 2 (node number), and can be changed on the
conguration screen or by entering the BaudRate and MAC_Address variables. The identier
(Device_ID) can be changed on the conguration screen using the writing property over the
variable or through the Device_ID variable.
Another option is to overwrite the Object_Name in the Device object:
a) #Baud x – where x can be: 9600, 19200
b) #MAC x – where x can be: 0 ... 127
c) #ID x – where x can be: 0 ... 999999
For further information on the protocol: www.bacnet.org.
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