Danfoss VLT HVAC Drive FC 102, Instructions Manual, Page: 8 / 29

2.1.9 Analog Output Commands (Acknowledged)
VLT
Response
Command Sub
command
Region NPA Object no. Attribute
No.
Attribute Message Type Comments
ACK 1 - 3 0-2 1 Byte Read Analog
Output
Read Object Configuration
attribute associated with each
individual point
ACK 1 - 3 0-2 2 Byte Read Analog
Output
Read Object Status attribute
associated with each individual
point
ACK 0 9 - - - - Status update
Message
Slave device must respond
with device manufacturing
model number (Par. 6-21), days
in service (Par. 6-00) and
device status
ACK 1 - 3 0-2 3 Float Read Analog
Output
Read Current Value attribute
associated with each individual
point
ACK 2 - 3 0-2 1 Byte Write Analog
Output
Write to Object Configuration
attribute associated with each
individual point
ACK 7 2 3 0-2 - Float Override Analog
Output
Write to analog output current
value (frequency setpoint)
ACK 7 2 3 0-2 - Float Override Analog
Output
Write to analog output current
value (frequency setpoint)
ACK 7 3 3 0-2 - - Override Release Set the current value, the value
that it was before the 1.
Override Command was issued
ACK, no
action
7 7 3 0-2 - - Write Analog
Output
Optional command for slave
devices. Only used for N2
Attributes commissioning
purposes. Not to be implemen-
ted at this time
ACK, no
action
7 8 3 0-2 - - Read Analog
Output Attributes
Optional command for no
action slave devices. Only used
for N2 commissioning
purposes. Not to be implemen-
ted at this time
Instructions
VLT
®
Metasys
8 MG.11.G2.02 - VLT
®
is a registered Danfoss trademark
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