2.1.7. Analog Input Commands (Acknowledged)
VLT Re-
sponse
Com-
mand
Sub-
com-
mand
Re-
gion
NPA Object
no.
Attrib-
ute No.
Attribute Message
Type
Comments
ACK
1
-
1
0-23
1
Byte
Read Analog
Input
Read Object Configura-
tion attribute associ-
ated with each individ-
ual point
ACK
1
-
1
0-23
2
Byte
Read Analog
Input
1)
Read Object Status
attribute associated
with each individual
point
ACK
1
-
1
0-23
3
Float
Read Analog
Input
2)
Read Analog Input
Value attribute associ-
ated with each individ-
ual point
ACK
1
-
1
0-23
8
Float
Read Analog
Input
Read Low Alarm attrib-
ute associated with
each individual point
ACK
1
-
1
0-23
9
Float
Read Analog
Input
Read Low Warning at-
tribute associated with
each individual point
ACK
1
-
1
0-23
10
Float
Read Analog
Input
Read High Warning at-
tribute associated with
each individual point
ACK
1
-
1
0-23
11
Float
Read Analog
Input
Read High Alarm attrib-
ute associated with
each individual point
ACK
1
-
1
0-23
12
Float
Read Analog
Input
Read Differential attrib-
ute associated with
each individual point
ACK
2
-
1
0-23
1
Byte
Write Analog
Input
Write to Object Config-
uration attribute associ-
ated with each individ-
ual point
ACK
2
-
1
0-23
8
Float
Write Analog
Input
Write to Low Alarm Lim-
it attribute associated
with each individual
point
ACK
2
-
1
0-23
9
Float
Write Analog
Input
Write to Low Warning
Limit attribute associ-
ated with each individ-
ual point
ACK
2
-
1
0-23
10
Float
Write Analog
Input
Write to High Warning
Limitattribute associ-
ated with each individ-
ual point
ACK
2
-
1
0-23
11
Float
Write Analog
Input
Write to High Alarm
Limit attribute associ-
ated with each individ-
ual point
ACK
2
-
1
0-23
12
Float
Write Analog
Input
Write to Differential at-
tribute associated with
each individual point
ACK, no ac-
tion
7
2
1
0-23
-
Float
Override Ana-
log inputs
Analog inputs are "out-
puts" from the frequen-
cy converter and should
not be written over by
the network controller
ACK, no ac-
tion
7
3
1
0-23
-
-
Override Ana-
log Release
Analog inputs are "out-
puts" from the frequen-
cy converter and should
not be written over by
the network controller
ACK, no ac-
tion
7
7
1
0-23
-
-
Write Analog
Input Attributes
Optional command for
slave devices. Only
used for N2 commis-
sioning purposes
Table 2.2: No Error code in this table.
VLT
®
HVAC Drive Metasys N2
2. Instructions
MG.11.G1.02 - VLT
®
is a registered Danfoss trademark
9
2