Intelligent eight channel isolation collector,8Channel relay output control

Instruction Manual

I. Overview

YK8D8GThe high-performance data collector used in the series of eight channel isolation collectors. This collector has8The resistance current input channel is a fully isolated input between channels. Using high-speed16bitA/DSampling chips enable the system to collect data quickly and with high accuracy. passRS485Interface with computer orPLCConnection, usingModbus—RTUCommunication protocol, compatible with various configuration software both domestically and internationally. Users can build their own data acquisition system using multiple isolation testers, and can also integrate with programmable controllersPLCShared use. It can have multiple analog and switch outputs.

2、 Main technical indicators：

Basic error:0.2％FS±1One word. Input signal: hot electricity blockPt100. Communication output: interfaceRS485, baud rate2400or9600bps

electricity Source: Switching power supply 85～265VACorDC24V. merit Consumption:<1W. Ambient temperature0～50℃

ambient humidity:<85％RH

ruler Inch:145×90×40mm

3、 Terminal wiring

4、 Selection instructions

type score						say bright
YK-8D8						Intelligent eight channel acquisition and control module
appearance						145×90×40mm
Number of input channels		08	01~08			Number of input channels
Number of output channels		08	01~08			Number of output channels
Switch output type			J1~J8			relay output
			K1~K8			SSRLevel output (controlling solid-state relays)
Analog output type			O1~08			4-20mAAnalog output.
			O2~08			0-10mAAnalog output.
			O3~08			1-5VAnalog output.
			O4~08			0-5VAnalog output.
			O5~08			0-10VAnalog output.
Communication output				M		433MHZwireless
				R		Serial communicationRS232
				S		Serial communicationRS485
power supply							220VACPower supply (power adapter)
						W	DC24Vpower supply
input signal						Sn	see“Input signal type table”

5、 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 asAccumulated quantity, etc., data value=high position×65536+Low position. 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.

Communication measurement value return value=(measurement value+error correction) * full-scale correction. The full correction range is 0.500 to 2.000, and users can also omit this measurement error correction and directly perform error correction on the upper computer.

The communication address range is 1-99, and the baud rate can be set to 2400 or 9600. The instrument has a default communication address of 248 (0XF8), which can be used for testing if the user is unsure. The baud rate is 2400 or 9600. After changing the communication address and baud rate, it needs to be powered on again to take effect.

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)

4x000	第01Road measurement value	4x048	第1Lower limit of input range	4x096	第1Road fullness error correction
4x0021	第02Road measurement value	4x049	第2Lower limit of input range	4x097	第2Road fullness error correction
┄┄	┄┄	┄┄	┄┄	┄┄	┄┄
4x014	第15Road measurement value	4x062	第15Lower limit of input range	4x110	第15Road fullness error correction
4x015	第16Road measurement value	4x063	第16Lower limit of input range	4x111	第16Road fullness error correction
4x016	第1Road input type selection	4x064	第1Upper limit of input range	4x112	open circuit(When there is no signal received)The measured value
4x017	Second input type selection	4x065	第2Upper limit of input range	4x113	Module communication address
┄┄	┄┄	┄┄		4x114	Module communication baud rate
4x030	第15Road input type selection	4x078	第15Upper limit of input range		The following are backup options
4x031	第16Road input type selection	4x079	第16Upper limit of input range
4x032	第1Road decimal point position	4x080	第1Road fullness error correction
4x033	第2Road decimal point position	4x081	第2Road fullness error correction
┄┄	┄┄	┄┄	┄┄
4x046	第15Road decimal point position	4x094	第15Road fullness error correction
4x047	第16Road decimal point position	4x095	第16Road fullness error correction

0	PT100	10	TC-T
1	Cu100	11	TC-N
2	Cu50	12	TC-J
3	BA1	13	4-20mA
4	BA2	14	0-10mA
5	0-400Ω	15	0-20mA
6	TC-S	16	1-5V
7	TC-K	17	0-5V
8	TC-E	18	0-50mV
9	TC-B	19	special

Input type comparison table:

Beijing Yukotaiji Electronics Co., Ltd