40
ENG
“UE
B
A
SIC”
+0300042IE
-
rel
.
1
.
6
-
21
.
11
.
2019
“D”
digital variables (
Modbus®: COILS)
CAREL - Modbus®
1
humidi
fi
er
disabled
by
remote
ON/OFF
(terminals
M2
.
4
M2
.
5)
read
-
only
2
disabling
control
signal:
D2
=
1
=
>
CPY
disabled;
D2
=
0
=
>
CPY
enabled
(similar
to
remote
ON/OFF)
3
humidi
fi
er
ready
and
awaiting
request
(read
-
only)
4
contactor
status:
0
=
open
,
1
=
closed
(read
-
only)
5
status
of
24
Vac
drain
output:
0
=
no
drain
,
1
=
drain
(read
-
only)
6
status
of
drain
relay
output:
0
=
no
drain
,
1
=
drain
(read
-
only)
7
cumulative
alarm
relay:
0
=
not
energised
,
1
=
energised
(read
-
only)
8
status
of
24
Vac
fi
ll
output:
0
=
no
fi
ll
,
1
= fi
ll
(read
-
only)
10
high
water
level:
0
=
probes
not
activated
,
1
=
probes
activated
(read
-
only)
17
manual
drain
control:
0
=
not
active
,
1
=
active;
if
set
to
1
via
the
network
,
the
drain
will
be
performed
until
maximum
time
or
variable
‘D17’
is
reset
19
UEY
terminal
connected
and
on
-
line:
0
=
not
on
-
line
,
1
=
on
-
line
(read
-
only)
11.8 Controlling production using variables I62
and I63
1
.
Via
network
,
immediately
after
start
-
up
,
set
D2
=
0
(D2
does
not
need
to
be
set
again
if
the
board
is
not
switch
o
ff
)
.
2
.
Set
I2
=
0
for
ON/OFF
control
(
A
0
=
0)
,
I2
=
1
for
proportional
control
(
A
0
=
1)
3
.
Set
I62
=
4
to
send
the
request
via
variable
I63
.
If
A
0
=
0
,
if
I63
≤50:
OFF;
if
I63≥51:
ON
4
.
Write
the
production
request
to
variable
I63
,
format
000
to
100
(0%
to
100%)
.
NO
T
E:
if
bit6
=
1
in
variable
I62
,
steam
production
will
stop
when
there
is
no
control
data
fl
ow
over
the
RS485
serial
link
for
a
period
exceeding
the
time
set
for
parameter
C8
.
Production
can
resume
when
new
data
is
sent
.
11.9 Read alarm log via the network
Supervisor
variable
I89
shows
the
alarms
saved
in
the
log
,
one
at
a
time
.
Normally
this
variable
will
always
show
the
code
of
the
most
recent
alarm;
to
scroll
all
the
alarms
saved
,
set
the
following
bits
of
variable
I62:
Variable
I62
-
bit7:
Flag
to
request
previous
alarm
(write
-
only)
Loads
the
code
of
the
alarm
saved
prior
to
the
current
alarm
displayed
into
variable
I89
.
If
the
current
alarm
is
the
oldest
,
the
value
0
is
loaded
.
Variable
I62
-
bit8:
Flag
to
request
next
alarm
(write
-
only)
Loads
the
code
of
the
alarm
saved
immediately
after
the
current
alarm
displayed
into
variable
I89
.
If
the
current
alarm
is
the
most
recent
(for
example
after
having
set
bit
0x0200)
,
the
value
0
is
loaded
Variable
I62
-
bit9:
Flag
to
load
the
last
alarm
in
the
log
(write
-
only)
Loads
the
code
of
the
most
recent
alarm
into
variable
I89
T
he
log
can
hold
the
most
recent
366
alarms
.
11.10
Loss of network communication
If
there
is
a
loss
in
network
communication
,
UEY
stops
the
KUE
unit
by
opening
the
contactor;
UEY
then
goes
into
standby
,
without
producing
steam
,
and
alarm
E3
is
displayed
.
Steam
production
resumes
as
follows:
•
Communication
is
restored
with
the
external
controller:
UEY
automatically
responds
to
the
request
from
the
external
controller
,
and
alarm
E3
disappears
.
•
UEY
is
switched
o
ff
and
on
again:
UEY
responds
to
the
request
from
the
external
controller
(if
communication
has
been
restored)
or
from
the
external
signal
(0
-
10
V
,
4
-
20
m
A,
etc
.
)
sent
to
terminals
M2:1
-
2
-
3
.
In
this
way
,
if
communication
with
the
external
controller
is
interrupted
,
steam
production
can
be
started
again
by
switching
UEY
o
ff
an
on
again
and
sending
the
request
using
an
external
signal
,
0
-
10
V
(4
-
20
m
A,
etc
.
)
.
11.11 Modbus® protocol on the UEY boards
T
he
Modbus®
protocol
can
be
selected
using
parameter
C7
(see
“Serial
connection
parameters”)
.
Chapter
7
shows
a
list
of
variables
and
the
corresponding
addresses
.
For
multiple
read/writes
,
the
maximum
number
of
“Register”
or
“Coil”
variables
is
20
.
T
he
following
functions
are
available::
•
MB
_
RE
A
D
_
COIL
_
S
TAT
US
1:
used
to
request
the
status
(ON
or
OFF)
of
a
certain
number
of
“Coil”
variables
(binary
,
1
bit)
,
starting
from
the
speci
fi
ed
address
.
Broadcast
mode
is
not
allowed
.
•
MB
_
RE
A
D
_
INPU
T_
S
TAT
US
2:
operationally
identical
to
the
above
.
•
MB
_
RE
A
D
_
HOLDING
_
REG
3:
used
to
request
the
value
of
a
consecutive
block
of
“Register”
variables
(numeric
,
16
bit)
.
Broadcast
mode
is
not
allowed
.
•
MB
_
RE
A
D
_
INPU
T_
REG
4:
operationally
identical
to
the
above
.
•
MB
_
FORCE
_
SINGLE
_
COIL
5:
used
to
set
the
status
of
an
individual
“Coil”
variable
(binary
,
1
bit)
to
ON
or
OFF
(specifying
the
address
of
the
bit
in
question)
.
Broadcast
mode
is
allowed
.
•
MB
_
PRESE
T_
SINGLE
_
REG
6:
used
to
set
the
value
of
an
individual
“Register”
variable
(numeric
,
16
bit)
.
Broadcast
mode
is
allowed
.
•
MB
_
FORCE
_
MUL
T
IPLE
_
COIL
15:
used
to
set
the
status
of
a
consecutive
block
of
“Coil”
variables
(binary
,
1
bit)
(specifying
the
number
of
bits
and
number
of
bytes)
.
Broadcast
mode
is
allowed
•
MB
_
PRESE
T_
MUL
T
IPLE
_
REG
16:
used
to
set
the
value
of
a
consecutive
block
of
“Register”
variables
(numeric
,
16
bit)
.
Broadcast
mode
is
allowed
.
11.12 Exceptions managed
01
illegal
function
02
illegal
data
address
03
illegal
data
value
T
ab.
11.h
Summary of Contents for humiSteam Basic UE001
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