Intelligent one in two out digital isolator

I. Overview

This series of products adopts surface packaging modular technology, greatly improving the anti-interference ability of the instrument. It has functions such as display, control, transmission, communication, signal input, etc. It is suitable for displaying and controlling various physical quantity detection signals such as temperature, humidity, pressure, liquid level, instantaneous flow rate, speed, etc., and can perform high-precision linear correction on various nonlinear input signals. It can be widely used in fields such as electricity, metallurgy, chemical industry, petrochemicals, paper printing and dyeing, brewing, tobacco, aerospace bases, etc.

By adopting jumper free technology, the input port is equipped with signal input function. By changing the internal parameters, it is possible to easily switch between multiple input signals (various thermocouples, thermal resistors, remote transmission pressure, mV, standard voltage/current signals). The circuit board has been optimized in design and continuously improved in production process, reducing temperature drift and enhancing anti-interference performance to ensure the stability and reliability of the product during long-term operation. Adopting high brightness LED digital display and high-resolution light column display (proportional display), the display of measurement/control values is clearer and more intuitive.

All output circuits adopt optoelectronic isolation, with strong anti-interference ability. It can be equipped with a serial communication interface and can communicate bidirectionally with various devices with serial interfaces to form a network control system. It has multiple standard external dimensions and can be applied to various measurement and control scenarios. The whole machine adopts a DN35 slide rail structure, which is very easy to install.

• Scope of Application

YK-2018 intelligent digital display control instrument is an intelligent and high-precision digital display measuring instrument for controlling physical quantities such as temperature, pressure, liquid level, force measurement, torque, displacement, etc. It can be paired with temperature, pressure, liquid level, force measurement, torque, displacement sensors and transmitters to form temperature, pressure, liquid level force measurement, torque, displacement measurement and control systems of various ranges and specifications. Full signal input, isolated output of 2 analog signals.

• Features

Input function (signal type can also be inputted by the customer)

Automatic calibration and manual calibration functions.

Multiple protection, isolation design, strong anti-interference ability, high reliability, and stable data collection

A good software platform with secondary development capabilities to meet the advanced modular structure of special functions, coupled with powerful instrument chips, makes function combination and system upgrades very convenient

2、 Main technical indicators：

Basic error:0.2％FS，14bitA/DConverter（

Input signal: thermocouple: BTheSTheKTheETheJTheTTheWRewait

·Thermal resistance: Pt100TheCu50TheCu53TheCu100TheBA1TheBA2

·Current0～10mA、4～20mAWait (input impedance ≤250Ω)

·Voltage0～5VThe1V～5VThemVWait (input impedance ≥)1MΩ)

·Remote transmission pressure resistor:（0～400(Ω)

Sampling period:0.2S（10~200time/Seconds, user selectable)

apparent Display: Double row four digit LED digital display.

Alarm output: The instrument can be equipped with multiple relay outputs, with relay contact capacity of AC220V/or AC220V/1A.

Transmission output:2road4～20mA、0～10/20mA(Load resistance)≤250Ω, indicate if the load is too large)

1～5V、0～5V、0～10V（load resistor≥200Kof).

adopt12Digit numberD/AChip, isolated output.

Communication output: isolated communication interfaceRS485/RS232Baud rate1200～9600bps

Print output: RS232 interface, TTL interface.

Feed output:DC24V/30mATheDC12V/30mA

Temperature compensation:0～50Cold end temperature automatic compensation, error:±1℃

electricity Source: Switching power supply 85～265VACorDC24VorDC12V

merit Consumption:4W

Environmental temperature:（-20～70)℃ (Start up and run at room temperature)30minutes later,Can gradually withstand extreme temperatures)

(0～50)℃ (thermocouple signal input)

Relative humidity: ≤ 85%. No condensation. Avoid use in corrosive and flammable/explosive gases

Panel size:48mm×48mm

3、 Model Description

type score						say bright
YK-2018D						Intelligent digital one in two out isolator
	F	guide railDN35install				method48×48×110 mmopening44×44
alarm output		J□				J0-J2，0-2Point alarm output
		K□				K0-K2，0-2aSSRoutput
transmitter output			O1			4-20mAoutput(Can output 2 analog signals)
			O2			0-10mAoutput
			O3			1-5Voutput
			O4			0-5Voutput
			O5			0-10Voutput
			note:Can be made into reverse transmission output or isolated common ground transmission output
Communication output				P		mini printer
				R		Serial communicationRS232
				S		Serial communicationRS485
Power supply for transmitter distribution					V12		beltDC12VFeed output
					V24		beltDC24VFeed output
power supply							220VACPower supply (external power adapter)
						W	DC24Vpower supply

4、 Terminal wiring

Specifications48×48Size gauge

Terminal description:

1. Terminal 1 and 2 input voltage (0-5V, 1-5V, 0-50MV, thermocouple) B+, C -.
2. Terminal 1 and 11 input current (0-10mA, 0-20mA, 4-20mA) A+, C -.
3. Terminals 1 and 2, 11 input a 3-wire heating resistor.
4. Terminal 3 feeds output+.
5. Terminals 5 and 6 output 4-20Ma (2).
6. Terminals 7 and 8 output 4-20Ma (1).
7. Terminal 9 and 10 are powered by DC24V.

Note:⑴The input signals are thermocouples and voltage signals, with the same wiring method

⑵The input signals are thermal resistance and remote transmission resistance, which must be connected in a three wire system

⑶For instruments with special requirements, please refer to the random wiring diagram for the wiring method.

5、 Operating instructions

(1)Panel Description

（1）AL1—J1The relay outputs corresponding indicator lights.AL2—J2The relay outputs corresponding indicator lights.

（2）Upper rowLED— Display the measured value of the input signal. lower rowLED- Can (set) display alarm values.

(II)Power-On Self-Test

Connect the wiring of the instrument according to the terminal diagram, and only turn on the power after it is correct.After the instrument self-test, if it displays -, it indicates that there is no signal received, the input signal exceeds the range, or the input signal type is set incorrectly. The instrument adopts a human-machine dialogue form to input parameters, and various prompts are used to indicate the data that should be input.

（3） Parameter setting

In working mode, the upper row displays the measured values, while the lower row displays them according to the settings. In the set state, the upper row of the instrument displays the parameter prompt, and the lower row displays the set value. If the parameters are not changed for about 20 seconds during the setting process, the instrument will automatically return to operation. After setting a parameter, press the En key to confirm and enter the next parameter setting state.

The parameter settings are as follows:

(1)Turn on S: Press the En key, Loc will appear on the upper display window, and oFF will be displayed on the lower display window. You must press the ▲ key to change oFF to on before you can modify the alarm point setting value. When Loc is set to oFF, the alarm point setting value cannot be modified and can only be browsed.

(2)J1HAJ1 relay alarm point setting value (this item is turned off when J1-H is set to OFF).

(3)J1HFJ1 relay alarm reset value (this item is turned off when J1-H is set to OFF).

(4)J2HAJ2 relay alarm point setting value (this item is turned off when J2-H is set to OFF).

(5) J2HF: J2 relay alarm reset value (this item is turned off when J2-H is set to OFF).

Set the alarm parameters for J3 and J4 in sequence.

After the alarm settings are completed, a password is required to enter the secondary parameter settings.

(6)Cd- Password, use the ▲ or ▼ keys to set 800 to 808, then press the En key to enter the parameter setting state. Other values are invalid to prevent non-technical personnel from operating incorrectly. After setting a parameter, press the En key to proceed to the next parameter setting.

(2) Sn—Instrument input signal type.

Note: Input signal selection comparison table(Free input is automatically completed internally, without the need for hardware adjustment, and the mA signal does not require a resistor. )

Parameter prompt	Input signal type	Parameter prompt	Input signal type
tc―K	Ktype	rtd	resistance0-400Ω
tc―S	Stype	bA1	BA1
tc―E	Etype	bA2	BA2
tc―b	Btype	0―50	0―50mV
tc―t	Ttype	0―5V	0―5V
tc―n	Ntype	1―5V	1―5V
tc―J	Jtype	0―20	0―20mA
P100	Pt100	0―10A	0―10mA
C100	Cu100	4―20	4―20mA
Cu50	Cu50	Please specify other input signals when ordering

(3) dot- Decimal point position, range0～3, such asdot=2, the display format isXX. XXFor temperature signals such as thermistor and thermocouple, the large setting is1The display resolution is0.1℃, in1000Automatic conversion above degreeresolutionfor1℃.

(4) inPLThe lower limit of the linear input corresponds to the displayed value, which is the lower limit of the instrument range-1999~9999.

(5) inPHThe upper limit of the linear input corresponds to the displayed value, which is the upper limit of the instrument range-1999~9999.

(6)J1-H：J1Relay alarm type F. set as-HH-Indicates an alarm for excessively high measurement values (upper limit alarm), set to-LL-Indicates a measurement value ultra-low alarm (lower limit alarm), set toOFFThis indicates that the alarm is prohibited at this point.(Alarm reference Alarm Description)

(7)Set sequentiallyJ2TheJ3TheJ4alarm parameters

(8) bS- Transmission output mode, selectable1～5V、0～5V、4～20mA、0～10mA、0～20mASeveral ways.

(9) bS-L—­The instrument measurement display value corresponding to * under the transmission output.

(10) bS-HThe instrument measurement display value corresponding to the * on the transmission output. (See the ninth item "Transmission Output" later)

(11) oSEt- Zero point correction coefficientAfter correction, the displayed value is equal to the measured value before correction plus oSEt. The factory value oSEt is 0.0

(12)FSEtThe range of the full-scale correction coefficient is 0.500 to 2.000, and the displayed value after correction is FSEt × (measured value before correction+oSEt). The factory value FSEt is 1.000.

(13)Lb- Digital filtering parameters, set within the range of0～5.LbThe larger the value, the more stable the measurement, but the slower the response. Generally, when the measured value is subjected to significant interference, it can gradually increaseLbAdjust the values so that the fluctuation between measured values is less than2～5One word. When conducting metrological calibration of instruments in the laboratory, it is necessary toLbset to0or1To improve response speed.

(14) Addr- Communication address and range of the instrument1～99.

(15) bAUd- Communication baud rate, range1200~9600.

(16)LdiSWhen the instrument is working, the display values in the lower row are J1HA, J2HA, J3HA, J4HA, Addr, OFF. If this item is set to OFF, there will be no display in the lower row when the instrument is working, and only instruments with display functions can choose this method. If set to Addr, the instrument communication address will be displayed in the lower row when the instrument is working.

Parameter setting completed, display-EndThe instrument automatically enters the running state.

6、 Alarm

This instrument can be equipped with multiple relays, each relay can be set with ultra-high, ultra-low alarm, and alarm prohibition F-type, and adoptsThe alarm return method avoids frequent relay actions. When a relay is in an alarm state, the corresponding relay's normally open contact is closed and the corresponding indicator light is on. withJ1Example of alarm point alarm:

If this alarm point alarm F is set as the upper limit alarm (i.eJ1-Hset as-HH-）When the measured value is greater thanJ1HAWhen the instrument enters an alarm state, the measured value drops toJ1HAThe instrument does not stop alarming when the value is reached, only when the measured value is belowJ1HFAt this time, the instrument will only release the alarm state. When set as the upper limit alarm, the alarm valueJ1HATo be greater than the alarm reset valueJ1HF.

If this alarm point alarm F is set as the lower limit alarm (i.eJ1-Hset as-LL-）When the measured value is less thanJ1HAWhen the instrument enters an alarm state, the measured value rises toJ1HAThe instrument does not stop alarming when the value is reached, only when the measured value is higher thanJ1HFAt this time, the instrument will only release the alarm state. When set as the lower limit alarm, the alarm valueJ1HABe less than the alarm reset valueJ1HF.

7、 Transmission output

The instrument can convert the measured value into a standard signal, and the output form is determined byThe "bS" parameter is determined, and the measurement value transmission range is determined by the "bS-L" and "bS-H" parameters. If measuring temperature signal PT100, it is required to output 4.0mA at 0 ℃ and 20.0mA at 150 ℃, then bS=4-20, bS-L=0.0, bS-H=150.0. So when the instrument displays 75.0 ℃, it outputs 12.0mA.

8、 Communication instructions

This instrument can be equipped with RS232 and RS485 interfaces for direct communication with computers,RS485Standard Communicationdistance1.5kmMultiple instruments can be attached.RS232Standard Communicationdistance15mOnly one instrument can be attached.RS232Connect the TXD, RXD, and GND of the interface to the second, third, and fifth pins of the computer serial port, respectively. The data format consists of 1 starting bit, 8 data bits, and noneverify﹑1A stop position.To avoid communication conflicts, the instruments are all in listening mode. The computer sends a command to a certain instrument at a specified address, and then waits for a period of time for the instrument to respond. After the instrument receives the correct command, it sends out the data. After sending, the instrument is in listening mode again. In the same system, instrument addresses cannot be the same, and baud rates must be consistent.

The instrument adopts the standard Modbus rtu communication protocol and supports function numbers 03 and 06. When using configuration software, the device to be selected is a Modicon PLC, Modbus RTU address type, with integer 16 bit data, starting from 4x001 or 4x000 using the Kingview register. Other configuration software may start from 3x001 or 3x000. The communication is an integer, and users need to handle the decimal places according to the actual situation.Communication transmission data is signed integer data, and it is recommended to define signed integer data for user programming. When the data is greater than0x8000When retrieving data, reverse adding is necessary1The actual value that is a negative number, for example, communication transmission data is0xFFFFThe corresponding data value is-1.For long integer data such as cumulants, the data value is equal to the high-order x 65536+low order. During configuration, users can also choose the data type as long, and the system will automatically calculate the cumulative amount.

Read instrument data and send command format: It is recommended that the amount of data read at once should not exceed16a

address	function number	Starting address high bit	Low order starting address	Read the high bits of data	Read low order of data quantity	CRC16high position	CRC16 low position
01	03	00	00	00	03	05	CB

On site measuring instruments return data format:

address	function number	byte count	High numerical value	numerical value low position	High numerical value	numerical value low position	High numerical value	numerical value low position	CRC16high position	CRC16 low position
01	03	06	03	E8	03	E8	03	E8	C1	9F

Write data to instrument and send command format: (Write to register)

address	function number	Starting address high bit	Low order starting address	Write high bits of data	Low order of the number of data written	CRC16high position	CRC16 low position
01	06	00	20	00	0C	88	05

Data format returned by on-site measuring instruments: (same as the data format sent)

address	function number	Starting address high bit	Low order starting address	Write high bits of data	Low order of the number of data written	CRC16high position	CRC16 low position
01	06	00	20	00	0C	88	05

Example: Read the first measurement value of the instrument with address 1 (PV1=1000)

Send data as 01 03 00 00 00 01 84 0A

The returned data is 01 03 02 03 E8 B8 FA (including 03 E8-1000)

(Among them, 01 is the instrument address, 03 is the function number, 00 00 is the register starting address, 00 01 represents reading a number, 840A is the checksum, and B8 FA in the returned data is the checksum. If you want to read the first and second data, you can send 01 03 00 00 02 C4 0B, and read 16 data and send 01 03 00 00 10 44 06.

The instrument has been set with a communication address of 1 and a baud rate of 9600 at the factory.

Register correspondence table (please refer to the setting section of the operating instructions for specific meanings)

This instrument can be equipped with RS232 and RS485 interfaces for direct communication with computers,RS485Standard Communicationdistance1.5kmMultiple instruments can be attached.RS232Standard Communicationdistance15mOnly one instrument can be attached.RS232Connect the TXD, RXD, and GND of the interface to the second, third, and fifth pins of the computer serial port, respectively. The data format consists of 1 starting bit, 8 data bits, and noneverify﹑1A stop position.To avoid communication conflicts, the instruments are all in listening mode. The computer sends a command to a certain instrument at a specified address, and then waits for a period of time for the instrument to respond. After the instrument receives the correct command, it sends out the data. After sending, the instrument is in listening mode again. In the same system, instrument addresses cannot be the same, and baud rates must be consistent.

This device adopts the standard Modbus RTU communication protocol and uses commands 03 and 06 to connect with almost all configuration software, including Kingview, Power Control, Century Star, etc Fix、InTouchWaiting for domestic configuration software eliminates the hassle of users connecting to the softwareWhen using configuration software, the device to be selected is a PLC with Modicon (* Kang), Modbus RTU address type, integer 16 bit data, starting from 4001 using the Kingview register. Other configuration software may start from 3001.

Register correspondence table (please refer to the setting section of the operating instructions for specific meanings)

4001	measured value	4011	dotdecimal point	4021	oSEtZero adjustment correction
4002	J1HA	4012	inpL(lower range limit)	4022	FSEt- Full correction
4003	J2HA	4013	inpH(upper range limit)	4023	Lbdigital filtering
4004	J3HA	4014	J1-H(J1Alarm Type F)	4024	LdiSBottom row display)
4005	J4HA	4015	J2-H(J2Alarm Type F)	4025	AddrMailing Address
4006	J1HF	4016	J3-H(J3Alarm Type F)	4026	bAUdBaud rate
4007	J2HF	4017	J4-H(J4Alarm Type F)	4027
4008	J3HF	4018	bS(Transmission output mode)	4028
4009	J4HF	4019	bS-L(Lower limit of transmission)	4029
4010	Sn(Input signal type)	4020	bS-H(Transmission upper limit)

Example: Read the PV (PV=1000) value of the instrument with address 1

Send data as 01 03 00 00 00 01 84 0A

The returned data is 01 03 02 03 E8 B8 FA (where 03 E8-1000, integer data without decimal point, if the decimal point dot is 2, then the data is divided by 100). 01 is the instrument address, 03 is the function number, 00 and 00 are the register start addresses, 00 and 01 represent reading a number, 84 and 0A are check codes, and B8 FA in the returned data is the check code. If you want to read PV and J1HA data, you can send 01 03 00 00 02 C4 0B. Write J1HA=1234Send data 01 06 00 01 04 d2 97. Note that when the input signal is a thermocouple signal and the decimal point is 1, the measurement value format is one decimal place, and the alarm value alarm reset value does not have a decimal place.

Among them, registers 4027 and 4028 are effective for weighing pressure instruments. Enter the status of the relays corresponding to temperature 4002, 4003, and 4004 of PT100.

9、 Warranty

If it is a manufacturing quality problem caused by the factory, the instrument will be repaired free of charge from the date of leaving the factory. If the damage is caused by improper storage and use, the repair cost will be charged. The warranty period is twelve months, and the warranty period of 3-5 years must be specified separately.

10、 Common fault handling

Fault phenomenon	cause of failure	treatment method
The instrument does not light up when powered on	Power cord not connected properly or instrument malfunction	Check if the power cord is loose or connected incorrectly, check if the power voltage is within the normal range, and communicate with the manufacturer or dealer
instrument display----	Sensor malfunction	Check whether the sensor has broken couples, broken resistors, or broken wires
	Selection of division number incorrect	Select the division mark that matches the input signal
	Signal line connection error	Correctly connect the signal line, please connect the thermal resistor according to the three wire system
The measurement value is incorrect	Selection of division number incorrect	Select the division mark that matches the input signal
	Signal line connection error	Correctly connect the signal line
Relay misoperation	Alarm output method error	Refer to the instruction manual to select the required alarm type F
No transmission output	Transmission output method error	Refer to the instruction manual to select the required transmission output mode or instrument terminal
	Output wiring error	Please connect the wires correctly
Communication exception	Communication address setting error Communication address baud rate error Communication port wiring error	Reset the correct communication address Reset the correct communication baud rate Check the wiring and connect it correctly, the computer serial port is broken

11、 Ordering Notice

1Dimensions of external instruments, opening size, insertion depth

2Input signal type and display format

3Output type and output method

4Communication selection

5Feed current size and voltage, power supply for sensors

6Instrument power supply

7Customized according to customer requirements.