Network Communications
8
8.3 BACnet Communications
YASKAWA TOEPYAIH6B01A HV600 AC Drive Narrow Bypass Installation & Startup 273
â– Executable Functions
A controller can do these operations with serial communications. Parameter settings (except H5-xx) do not have an
effect on the availability of these operations.
• Monitor the bypass status and operate the bypass
• Set and view parameters
• Fault Reset Procedure
â– Bypass Control
To use external commands to set the frequency references and motor run/stop with serial communications, set these
parameters as specified by the application:
• b1-01 = 2 [Frequency Reference Selection 1 = Serial Communications]
• b1-02 = 2 or 8 [Run Command Selection 1 = Serial Communications or AUTO Command + Serial Run]
For more information about operation mode selection, refer to b1-01 and b1-02.
â—† BACnet Objects Supported
â– Present Value Access
The Present Value (PV) of BACnet objects can always be read. Some PVs can also be written or commanded. A
commandable PV is almost the same as the writable PV, but the value is actually written into a priority array. The
value that has the highest priority in the array will be used by the drive.
Table 8.3 Present Value Access Types and Descriptions
PV Access Name Description
C Commandable Value written to a priority array. The highest priority value in the array is then written to the drive.
R Readable Value is read-only
W Writable Value written to the drive
â– Supported Properties of Objects
Table 8.4 Object Properties
Property
Object Type
Device
Analog
Input
(AI)
Analog
Output
(AO)
Analog
Value
(AV)
Binary
Input
(BI)
Binary
Output
(BO)
Binary
Value
(BV)
Object_Identifier Yes Yes Yes Yes Yes Yes Yes
Object_Name Yes Yes Yes Yes Yes Yes Yes
Location Yes - - - - - -
Object_Type Yes Yes Yes Yes Yes Yes Yes
System_Status Yes - - - - - -
Vendor_Name Yes - - - - - -
Vendor_Identifier Yes - - - - - -
Model_Name Yes - - - - - -
Firmware_Revision Yes - - - - - -
Protocol_Version Yes - - - - - -
Protocol_Revision Yes - - - - - -
Protocol_Services_Supported Yes - - - - - -
Protocol_Object_Types_Supported Yes - - - - - -
Object_List Yes - - - - - -
Max_ADPU_Length_Accepted Yes - - - - - -