Siemens Moore 353 - AOP_ - Analog Output Lev_Percent

Function Blocks UM353-1
March 2003
3-26
3.2.16 AOP_ - Analog Output lev_Percent
AOP_ function blocks convert a function block
interconnection signal, input S, to a output which is
bound to a network variable in a node on the
LonWorks network having a SNVT (Standard
Network Variable Type of lev_percent. A maximum
of 25 AOP blocks can be used, up to the limit of nodes
allowed on the Lon network or the memory limit of
the controller. Each use of the block will be assigned a
unique station wide ID (e.g. AOP13). These blocks
will be available when the LonWorks option board is
installed in a 352P, 353, or 354N controller.
The range pointer parameter (input R) tells the
function block where to obtain the signal’s range
scaling information. An unconfigured range pointer will use a default range of 0.00 to 100.00. The signal will be
scaled and transmitted on the network as a SNVT_lev_percent (SNVT #81) data type. The NV NUM parameter
enables viewing the output variable number. This may be needed when using a remote PC network manager to bind
this output with the network variable in a remote node.
The block output QS indicates the quality status of the Lon output and will go high when the output is of bad
quality. Bad quality usually indicates a loss of communications within the LonWorks network.
QS
Quality Status
ANALOG OUTPUT LEV_PERCENT
ANALOG OUTPUT
AOP_
T
R
G
P
LEV_PERCENT
LonWorks
Remote I/O Bus
nv
*
nvoAOPnn1
SNVT_lev_percent
R
R
an
G
e
P
oin
T
e
R
(S)
........
loop tag.block tag (null)
I
N
PU
T1
INPUT 1
(H)
...........
loop tag.block tag.output (null)
Input
1
1
NV NUM
N
etwork
V
ariable
NUM
ber (nv*)
(R)
...... 1 to 2000
(*)
R
ange
R
BLOCK DIAGRAM
Scaling
O
utput
R
an
G
e
P
oin
T
e
R
node r
nv x
LonWorks
option board
node u
Remote
I/O Bus
NV NUM (nv *)
SNVT ^
nv * binding
node r
, nv x
Station
nv *
SNVT ^
^ SNVT_lev_percent
LonWorks Remote
Device
1
X03130S0
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