DVP04PT-H2 is able to receive 4 points of resistance temperature detectors (PT100,
PT1000, NI100, and NI1000) and convert them into 16-bit digital signals. Besides,
through the user of FROM/TO instructions in DVP-EH2 MPU program, the data in
DVP04PT-H2 can be read or written. There are 49 16-bit control registers (CR) in it.
DVP04PT-H2 displays temperatures in Celsius (resolution: 0.1°C) and Fahrenheit
(resolution: 0.1°F).
a This instruction sheet only provides descriptions on electrical specifications, general
specifications, installation and wiring. For detailed infromation about programming
and intructions, please see DVP-PLC Application Manual: Programming. For more
information about the optional peripherals, please see individual product instuction
sheet or DVP-PLC Application Manual: Special Modules.
a DVP04PT-H2 is an OPEN-TYPE device and therefore should be installed in an
enclosure free of airborne dust, humidity, electric shock and vibration. The enclosure
should prevent non-maintenance staff from operating the device (e.g. key or specific
tools are required to open the enclosure) in case danger and damages on the device
may occur.
a DO NOT connect the input AC power supply any of the I/O terminals; otherwise
serious damanges may occur. Check all the wirings again before switching on the
power. Make sure the ground terminal is correctly grounded in order to eliminate
electromagnetic noises. DO NOT touch the terminals when the power is switched on.
a Keep the wire between the RTD and PLC as short as possible and the power cable
as far away as possible from the I/O to prevent interferences.
a When setting up the PLC to resistance temperature detectors mode, please make
sure the setting of CR#1 is correct, or it will cause serious errors.
Product Profile & Dimensions
Unit: mm
1. DIN rail (35mm) 6. Terminals
2. Connection port for extension module 7. Mounting hole
3. Model name 8. I/O terminals
4. POWER, ERROR, A/D indicator 9. Mounting port for extension module
5. DIN rail clip
I/O Terminal Layout
24V0V
D +I -
D -L +L -L +
FGI -FGI -FGI -
CH1CH2CH 3CH4RS-485
L -L +L -L +L -
- 1 -
[Figure 1]
External Wiring
A
PT100/PT1000
NI100/NI10 00
3 wir e
PT100/PT1000
NI100/NI10 00
2 wir e
Termin al of
power module
*1: Wiring for analog inputs should use cables of resistive temperature sensors or double shielding
cables and should be separated from other power cables that may cause interferences. To prevent the
measuring results from being affected by the line resistance, use 3-wire temperature sensor. The
terminals should be screwed at torque 1.95 kg-cm (1.7 in-lbs).
*2: Terminal FG is the ground location for noise suppression.
*3: Connect
and ground the system contact or connect it to the cover of power distribution cabinet.
Note: DO NOT wire empty terminals. Use 60/75°C copper conductors only.
Ear th (100 o r less )
terminal on both the power supply module and DVP04PT-H2 to the system earth point
Shielding
cable *1
Shielding
cable *1
*3
System
grounding
Ω
CH1
CH4
*2
24+
L+
L-
I-
AG
FG
L+
L-
I-
AG
FG
AG
DC/ DC
Converter
0V
+15V
AG
-15V
Electrical Specifications
Power supply voltage 24 VDC (20.4 to 28.8 VDC) (-15 to +20%)
Analog output channel 4 channels/module
Applicable sensors
Current excitation 1.53 mA/200 μA
Range of input temp. See the table in “Temperature/Digital Value Curve” section.
Range of digital
conversion
Resolution 16-bit (0.1°C/0.1°F)
Output impedance 0.5Ω or less
Overall accuracy
Response time 400 ms × number of channels
Isolation
Format of digital data 15 sig nificant bits out of 16 bits are available; in 2’s complement
Average function Provided; available for setup in CR#2 to CR#5; Range: K1 to K100
Self-diagnosis Upper and lower bound detection/channel
Communication mode
(RS-485)
Serial connection with
DVP-PLC MPU
3-WIRE PT100 / NI100 / PT1000 / NI1000 3850 PPM/°C (DIN 43760
JIS C1604-1989)
See the table in “Temperature/Digital Value Curve” section.
±0.6% when in full scale within the range of 0 to 55°C, 32 to 131°F
Isolation between digital circuits and analog circuits. Isolation
between channels.
500 VDC between digital circuits and ground
500 VDC between analog circuits and ground
500 VDC between analog circuits and digital circuits
500 VDC between 24 VDC and ground
ASCII/RTU mode. Communication speed: 4,800 / 9,600 / 19,200 /
38,400 / 57,600 / 115,200 bps. ASCII data format: 7-bit, even bit, 1
stop bit (7, E, 1). RTU data format: 8-bit, even bit, 1 stop bit (8, E, 1).
RS-485 cannot be used when connected to PLC MPU.
The modules are numbered from “0 to 7” automatically by their
distance from MPU. 0 is the closest to MPU and 7 is the furthest.
Maximum 8 modules are allowed to connect to the PLC and will not
occupy any digital I/O points.
- 2 -
MUX
DC
5V
Other Specifications
Max. rated power
consumption
Operation/storage
Vibration/shock
immunity
24 VDC (20.4 to 28.8 VDC) (-15 to +20%), 2.5 W supplied by external
power.
1. Operation: 0 to 55°C (temperature), 50 to 95% (humidity), pollution
degree 2
2. Storage: -25 to 70°C (temperature), 5 to 95% (humidity)
CR#6 to CR#9 are the average Celsius temperatures measured at CH1 to CH4 obtained from
the average time settings in CR#2 ~ CR#5.
#12 X R
#13 X R
#14 X R
#15 X R
CR#12 to CR#15 are the average Fahrenheit temperatures measured at CH1 to CH4 obtained
from the average time settings in CR#2 to CR#5.
Average °C temp.
measured at CH1
Average °C temp.
measured at CH2
Average °C temp.
measured at CH3
Average °C temp.
measured at CH4
Average °F temp.
measured at CH1
Average °F temp.
measured at CH2
Average °F temp.
measured at CH3
Average °F temp.
measured at CH4
Set up by the system. DVP04PT-H2 = H’6402.
You can read the model name from the program and
see if the module exists.
CH1 mode: b0 ~ b3
CH2 mode: b4 ~ b7
CH3 mode: b8 ~ b11
CH4 mode: b12 ~ b15
Take setting up (b3, b2, b1, b0) of CH1 for example
(Default = H’0000):
1. (0, 0, 0, 0): PT100
2. (0, 0, 0, 1): NI100
3. (0, 0, 1, 0): PT1000
4. (0, 0, 1, 1): NI1000
5. (0, 1, 0, 0): 0 to 300Ω
6. (0, 1, 0, 1): 0 to 3,000Ω
7. (1, 1, 1, 1): Disabled
Range of settings in CH1 to CH4: K1 to K100.
Default =K10.
Please note that the average times set in CR#2 to
CR#5 can only be written in once.
Average Celsius temperature measured at CH1 ~
CH4.
Unit: 0.1°C
Average Fahrenheit temperature measured at CH1 ~
CH4.
Unit: 0.1°F
- 3 -
CR# Attrib. Content Explanation
#18 X R
#19 X R
#20 X R
#21 X R
#24 X R
#25 X R
#26 X R
#27 X R
#30 X R Error status
#31 O R/W
#32 O R/W
#33 O R/W
#34 O R Firmware version
#35 ~ #48 For system use
Symbols:
O: Latched, X: Non-latched
R: Able to read data by using FROM instruction or RS-485 communication.
W: Able to write data by using TO instruction or RS-485 communication.
c CR#0 ~ CR#34: The corresponding parameter addresses H’4064 ~ H’4086 are for
users to read/write data by RS-485 communication. When using RS-485, you have to
Present °C temp.
measured at CH1
Present °C temp.
measured at CH2
Present °C temp.
measured at CH3
Present °C temp.
measured at CH4
Present °F temp.
measured at CH1
Present °F temp.
measured at CH2
Present °F temp.
measured at CH3
Present °F temp.
measured at CH4
Communication
address
Communication speed
(baudrate)
Returning to default
setting
Present Celsius temperature measured at CH1 ~
CH4.
Unit: 0.1°C
Present Fahrenheit temperature measured at CH1 ~
CH4.
Unit: 0.1°F
Register for storing all error statuses. See the table of
error status for more information.
The RS-485 communication addresses.
Range: 01 to 254, Default = K1.
Available baudrates: 4,800/9,600/19,200/
38,400/57,600/115,200 bps. ASCII data format: 7-bit,
even bit, 1 stop bit (7, E, 1). RTU data format: 8-bit,
even bit, 1 stop bit (8, E, 1). Default = H’0002.