Aip_ - Analog Input Lev_Percent - Siemens Moore 353 User Manual

UM353-1

3.2.11 AIP_ - Analog Input lev_Percent

AIP_ function blocks convert an analog signal
with a lev-percent type SNVT (Standard Network
Variable Type) received from the LonWorks
network into a block output, scaled in engineering
units, for interconnection to other function blocks
within the controller. A maximum of 25 AIP_
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. AIP06).
These blocks are available when the LonWorks
option board is installed in a 352P, 353, or 354N
controller. The input connection is established by
'binding' a network variable from the remote
analog node to the network variable of the AIP_
function block.
A 6-character ASCII value can be entered to
identify the engineering units of the output signal. Output scaling (MINSCALE and MAXSCALE) is provided to
establish an engineering range of choice. The number of the input network variable to the AIP block can be viewed
in the configuration mode. This is useful when other devices need this for binding. The Output Range is a special
data type that includes the MIN and MAX SCALE, the DPP, and the ENGUNITS that can be connected to other
blocks with a Range (RG PTR) input.
The block output QS indicates the quality status of the output signal O1 and will go high when the output is of bad
quality. Bad quality usually indicates a loss of communications within the LonWorks network.
LonWorks
Network and
Node(s)
LON node r
nv x SNVT_lev_percent
nv x binding
node u, nv *
X03125P1
March 2003
ANALOG INPUT LEV_PERCENT
LONWorks
Network
nviAIP
nv *
SNVT_lev_percent
M I N S C A L E
M A X S C A L E
E
N G U N
D I G F
S Q R
N V
Controller
LonWorks option board
node u
nv * SNVT_lev_percent
BLOCK DIAGRAM
AIP
OR
ANALOG INPUT
O1
nn1
LEV_PERCENT
QS
....................... Real
MINimum SCALE
(H)
MAXimum SCALE ...................... Real (100.0)
(H)
D P P
D ecimal P t. P osition (preferred) .. 0.0.0.0.0.0
(S)
I T S
ENGineering UNITS ...... 6 Char ASCII (PRCT)
(S)
L
I T
DIGital FILTer ................. 0 to 180 sec (0 sec)
(S)
O O T
SQuare ROOT extractor ....... NO/YES (NO)
(S)
N U M
N V NUM
etwork ariable ber (nv*) (R) ........ 1 to 2000
AIP Function Block
ENG Units
NO
Digital
Filter
YES
XTR
Quality Test
Function Blocks
Output Range
Output 1
Quality Status
(0.0)
(0.00)
(*)
Output
O1
Scaling
QS
3-21