SD16A Instruction Manual
Inhibit action
1-19 Communication address
When the alarm
or 1-14),
the inhibit action
wer on is performed, as follows.
Latc
output inhibit action is set to ON (on screen 1-11
at po
hing feature
The communication address is displayed or can
be set.
1 ~ 100
1
1-20 Communication data format
The communication data format is displayed or
can be set.
The setting value is composed of three
character
: Data length (b
r
dle character : Parity. E (even) or N (
Right character
: Stop bit. 1 or 2
f the 7-bit format types. The default value
For MOD
lt value is
8E1.
alphanumerical characters.
Left
Mid
its). 7 o 8
none)
Note
For MODBUS ASCII, specify one o
is 7E1.
BUS RTU, specify one of the 8-bit format types. The defau
7E1, 7E2, 7N1, 7N2, 8E1, 8E2, 8N1, 8N2
7E1
1
Co
-21
mmunication start character
The start character of communication data is
can be set.
Start character
STX (02H
Text end
ETX (03H)
DH)
Note
MODBUS ASCII/RTU doesn’t use a start character.
displayed or
STX
)
End character
CR (0
ATT
Start character
@ (40H)
Text end
: (3AH)
End character
CR (0DH)
TX
S
, ATT
STX
1-22 Co
tion
mmunication BCC opera
1
The BCC operation method is displ
.
: ADD operation from the start character to the
text-end character
2
3
R operation from after the start character to the
4
Note
MODBUS
ayed or can be set
: 2’s complement after ADD operation from the start
character to the text-end character.
: XO
text-end character.
: BCC operation is not performed.
ASCII/RTU doesn’t use BCC.
1 ~ 4
1
1-23 Communication speed
The communication speed is displayed or can be
set.
Note
displayed on
ee
In case of 19200 bps, "1920" is
the scr n.
1200, 2400, 4800, 9600, 19200 bps
9600
1-24 Communication delay
The delay time by communication, between time
of receiving a command and sending the reply, is
displayed or can be set.
1 ~ 100 msec
20
7. Optional features overview
7-1. Alarm output
The instrument supports two points of alarm optionally.
Action type
The f
rm output action types (scree
supported.
he lower-limit absolute value alarm
ollowing ala
n 1-9 or 1-12) are
T
The higher-limit absolute value alarm
Scale over
The latching feature outputs the alarm signal constantly once PV is
region, even if PV is out of the alarm action
detected in the alarm action
region later.
Note
When PV is in the alarm action region, latching cannot be
released. To release the latching, refer to the description of
screen 0-0, 0-1, or 0-2.
The latching feature is disabled.
ng feature is enabled.
The latchi
7-2. Analog output
Analog output is
ltage or
analog current. B
t scaling lower-limit value
(screen 1-15) or higher-limit value (1-16), the analog output signal can be
gained by
pecified measuring range.
A
7-3. Sensor po
a feature that outputs PV value-based analog vo
y setting the analog outpu
PV value-base within a s
Ao_L < o_H
Ao_L > Ao_H (reverse scaling)
wer supply
In case the optio
cted,
the instrument can be us
series.
Note that i
sensor p
W
g
nal DC sensor power supply (24V DC 25mA) is sele
ed with the Humidity Sensor H71/TH71
f 08 of power (24V AC/DC) from type code is selected, the
ower supply cannot be specified.
irin example using with Humidity Sensor H71/TH71
0%
Alarm setting value
100%
Hysterisis
ON
OFF
0%
-10%
100% 110%
ON
ON
OFF
OFF
Alarm
0%
Alarm setting value
100%
Hysterisis
ON
OFF
Alarm signal
Hysterisis
A
Alarm standby
larm setting v
PV
(measured val
alue
ue)
Power ON
ON
Time
OFF
Alarm
setting value
PV
(measured val
Alarm action region
Time
ON
ON
ue)
OFF
OFF
Alar
Hysterisis
m signal
0%
10
A
0%
Measuring range
o_L
Ao_H
Analog output
Ao_H
Ao_L
0%
100%
Measuring range
Analog output
IN/OUT
H71/TH71
SD16A
19
11 12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
1
5
6
7
18
POWER
DC
For voltage (V) Input
24V DC 25mA
OUT
H71/TH71
For current (mA) Input
SD16A
19
11 12 13 14 15 16 17 18 19 20
1
2
3
4
5
6
7
8
9
10
5
6
7
18
DC
Time
Alarm
setting value
ea
PV
(m sured value)
Alarm region
Alarm signal
Hysterisis
Allowed
Release of latching
Allowed
Operation of
latching release
ON
OFF
Alarm action region
7
