Bacnet protocol – CIRCUTOR CVM-C10 Series User Manual
Page 72
4.10.3.6.16. Password configuration
These variables allow you to lock or unlock access to the programming menu, and also allow
you to change the password code. The password code may only be changed through this com-
mand.
The unit does not need you to enter the old password in order for it to record the new one; it
records the new one directly without any verification.
Table 41:Modbus memory map:
Password configuration
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 unit features
BACNet MS/TP communications, following the specifications of ANSI/
ASHRAE 135 (ISO 16484-5).
Using a RS485 connection, the unit can connect to a BACnet and include all of the objects and
services defined in the attached PICS map (Protocol Implementation Conformance Statement).
The default speed is 9600 bps and the MAC is 2 (node number), and can be changed on the
configuration screen or by entering the BaudRate and MAC_Address variables. The identifier
(Device_ID) can be changed on the configuration 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 ... 255
c) #ID x – where x can be: 0 ... 999999
For further information on the protocol: www.bacnet.org.
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CVM-C10
Instruction Manual