Design Manual
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Wavin Tempower Control Manual
Wavin Tempower Control
Heating and Cooling systems
.
Wavin Tempower Control Manual
Wavin Tempower Control
Heating and Cooling systems
.
31
8
8.. C
Co
on
nn
ne
ec
ctt tto
o B
Bu
uiilld
diin
ng
g M
Ma
an
na
ag
ge
em
me
en
ntt
S
Sy
ys
stte
em
m ((B
BM
MS
S))
The WTC-3 can communicate with the most of the BMS
system via the MODBUS-RTU communication protocol. The
BMS system can read and control the major of data inputs
(heating/cooling mode, temperatures and economy mode) of
the WTC-3.
8
8..1
1 C
Co
om
mm
mu
un
niic
ca
attiio
on
n
P
Ph
hiis
siic
ca
all iin
ntte
errffa
ac
ce
e::
RS-485, half-duplex
L
Liin
ne
e e
en
nd
d c
cllo
os
siin
ng
g::
ON:switch turn to the
corner
M
Ma
ax
x n
nu
um
mb
be
err o
off c
co
on
nn
ne
ec
ctte
ed
d W
WT
TC
C::
64
tty
yp
pe
es
s o
off w
wiirre
e::
2 pcs twisted pair of wire
(example: CAT5 UTP)
P
Prro
otto
oc
co
oll::
MODBUS-RTU
D
Da
atta
a e
ex
xc
ch
ha
an
ng
ge
e s
sp
pe
ee
ed
d rra
atte
e::
9600bps
P
Pa
arriitty
y::
N
D
Da
atta
a b
biitt::
8
S
Stto
op
p b
biitt::
1
R
Re
ep
plly
y ttiim
me
e lliim
miitt::
TIMEOUT = 500ms
M
Ma
ax
x rre
ea
ad
diin
ng
g v
vo
ollu
um
me
e a
att o
on
nc
ce
e::
max 32 pcs register
or 256 bit
8
8..2
2 M
MO
OD
DB
BU
US
S c
co
om
mm
ma
an
nd
ds
s
Commands
Code (dec)
Action
Get Coils
01
to bit read out
Get Bits
02
to bit read out
Get Holding Regs
03
to register read out
Get Input Regs
04
to register read out
Set Bit
05
to bit writing
Write Single Register
06
to register writing
Set N Bits
15
to more bit writing in same time
Set Holding Regs
16
to more register writing in same time
8
8..3
3 R
RJ
J4
45
5 p
pllu
ug
g w
wiirriin
ng
g
Pin number
Function
1
RS485-B
2
RS485-A
3
Free
4
GND (ground)
5
GND (ground)
6-8
Free
