- 3 -
RS-
485 Wiring
D+ D- SG
D+ D- SG
SG D+ D-
M
as
te
r no
de
S
l
a
ve n
o
de
S
l
a
ve n
o
de
Shi
elded
c a
ble
Shi
elded
c a
ble
T
e
r
m
ina
l
r
e
sis
t
or
(
120 oh
m
)
T
e
r
m
ina
l
r
e
sis
t
or
(
120 oh
m
)
Note1:
It
is suggested to add
the terminal resistor
(typically 120Ω
)
between
the master node and the
slave node furthest from the master.
Note2:
T
o ensure
good communıcatıon quality
,
please apply
double shielded
twisted
-
pair type cable
(20
AWG)
for wiring.
N
ote3: . When voltage drop occurs between the internal ground references of
two systems,connect the
systems with Signal Ground point (SG) for achieving equal potential
between systems so that a
stable communication can be obtained.
Electrical Specifications
P
ower Supply Voltage
24
VDC
（
20.4VDC ~ 28.8VDC
）（
-
15% ~ 20%
）
Max. rated power
consumption
1W
W
eight (g
)
70g
Operation/storage
Operation: 0°C~55°C (temp.), 5~95% (humidity), pollution degree 2
Storage:
-
25°C~70°C (temp.), 5~95% (humidity)
Vibration/shock resistance
International standards: IEC61131
-
2, IEC 68
-2-
6 (TEST Fc)/ IEC61131
-2
& IEC 68
-2-
27 (TEST Ea)
Series connection to DVP
-
PLC MPU
The modules are numbered from 0 to 7 automatically by their distance
from MPU. No.0 is the closest to MPU and No.7 is the furthest. Maximum
8 modules are allowed to connect to MPU and will not occupy any digital
I/O points.
Functional Specifications
Analog input channel
8
channels per module
Sensors type
2-
wire
type
Drive current
213.33uA
（
RTD
）
/109.17uA
（
NTC
）
/1.009mA
（
KTY81 Series
）
Temperature input range
Please refer to the temperature/digital value characteristic curve.
Digital conversion range
Please refer to the temperature/digital value characteristic curve.
Resolution
16 bits (0.1°C/
0.1°F
)
Overall accuracy
±
0.
5
% of full scale at 25°C
(77°F
)
±
1
% of full scale during
0 ~ 55°C (32 ~ 131°F)
Response time
200ms/channel
Isolation method
(between digital and analog
circuitry
)
There is no isolation between channels.
500VDC between digital/analog
circuits and Ground
5
00VDC between analog circuits and digital circuits
500VDC between 24VDC and Ground
Digital data format
2’
s complement of 16
-
bit
Average function
Yes (CR#
6)
Self diagnostic function
Every channel has the upper/lower limit detection function.
RS-485
Communication
Mode
Supported, including ASCII/RTU mode. Default communication format:
9600, 7, E, 1, ASCII; refer to CR#
17
for details on the communication
format.
S
upported sensor types
Pt1000
：
DIN 43760/
Ni1000
：
DIN EN60751/
LG
-
Ni1000/
NTC 10K B25 B85
3977K
/
NTC 100K B25 B85 4260K/
NTC 20K B25 B85 4200/
NTC 30K B25 B50 4200/
PT-42H 10K B25 B85 3435K
/
PT-
43 10.74K B25 B85 3480K/
PT-
51F 49.12K B25 B85 3992K/
PT-
25E2 98..63K B25 B85 4066K/
PT-
312 231.4K B25 B85 4240K/
KTY81 110 120
/
KTY81 121
/
KTY81 122
/
KTY81 210 220
/
KTY81 221
/
KTY81 222
Control Register
(CR)
CR#
MODBUS
A
ddress
Latc
hed
Attribute
Register content
Description
#0
H4000
O
R
Model name
H010D
#1
H4001
O
R/W
CH1 & CH2
Mode setting
R
efer to CR Description
-
