Type:Logic ICs
Condition:New
Model:MB8AI+
One Summary
You can mark 8 channels with different input when order,we would configure it for you.
MB8AI+8The high precision channel isolation analog data acquisition module can collect analog data.+20mA,4-20mA,+1V,+10VEach input channel signal type can be different and can be combined at will; each input channel is isolated from each other, which can be used in complex industrial control field environment; the analog signal data collected can be isolated through isolation.RS485Interface output; module adoptionModbus-RTUCommunication.
Each input signal channel, signal input, CPU, power input and RS485 communication electrical signal are isolated from each other, effectively suppressing all kinds of serial mode and common mode interference, ensuring the accuracy of data, and also ensuring the reliable work of the module.
MB8AI+ The module is mainly used in many applications where analog input signals coexist. Adaptable toPLC,DCSAs well as various configuration software, automation complete sets of equipment matching.
Two. Characteristic
1. 8Road analog signal input,The input signal types of channels can be set according to their needs..
2. 4-20mAThe input has the function of detecting and breaking line, which is convenient for on-site debugging and maintenance.
Three Full differential input, and each channel is isolated from each other, and the isolation voltage between channels is 300V.It can be applied to the complex use environment of industrial control site..
Four High precision signal acquisition: high precision 24 bit AD and voltage reference, voltage reference temperature coefficient 10PPM/ centigrade.
Five Safety: signal collection, signal output, power supply, RS485 communication and electrical signals are isolated from each other.
6. Adopting the standard Modbus-RTU protocol, the RS485 communication signal output interface adopts over voltage and over current double protection.
7. The input signal type and communication format can be set by software.
Eight Power input polarity protection and overvoltage protection.
Three. Technical indicators
| project | parameter |
| AI Signal input | OneInput channel: 8 way two terminal full differential input. 2.8Each input signal channel is isolated from each other, and the isolation voltage between channels is 300V ThreeInput signal type: 2Species typeCurrent input (+ 20mA, 4)~20mA) 2Species typeVoltage input (+ 1V, + 10V) FourSettings: through software settings, current input also needs to plug in the jumper on the circuit board. FiveScan cycle: 8 channels are collected every 500mS. SixADResolution: 24 bit voltage reference temperature coefficient 10ppm. SevenSignal acquisition circuit and power input isolation voltage protection: 1000V |
| RS485 Communication output | OneCommunication protocol: Standard MODBUS-RTU. TwoCommunication distance: 9600bps 1200 meters. ThreeCommunication medium: ordinary twisted pair, greater than or equal to 0.5mm2. FourInterface type: isolated RS485 communication, and the output interface adopts over voltage and over current double protection. FiveBaud rate: 1200BPS, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps 57600bps, 115200bps. 6. Check bit: no check, parity check, odd check. SevenData bits and stop bits: 8 bit data bits and 1 bit stop bits, these two parameters are not adjustable. EightPower input and RS485 circuit isolation voltage protection: 1000V. NineSetting mode: module address, baud rate, parity bit can be set by software. |
| Module size | OneSingle module size: L104mm * H72mm * H26mm TwoTerminal and guide box dimensions: L124mm * W72mm * H45mm |
| Installation method | Standard 35mm DIN guide rail installation |
| work environment | OneTemperature: -10 ~ +55 C TwoHumidity: 35 to 85% (no condensation) |
| Working power supply | 1Power supply voltage: 10V to 30V wide range of power supply, polarity protection with power supply 2Power consumption: less than 2W |
| measurement accuracy | Input type | measuring range | Display resolution | accuracy |
| Current input | + 20mA and 4 ~ 20mA | 0.001mA | + 0.1FS |
| Voltage input | + 1V | 0.001mV | + 0.1FS |
| + 10V | 0.01mV | + 0.1FS |
Four. Product appearance, terminal definition and status indication
1. Product appearance
2. Terminal definition
| terminal | Name | Explain | | terminal | Name | Explain |
| 1 | AI5+ | Input signal channel 5 positive end | 26 | AI4- | Input signal channel 4 negative end |
| 2 | AI5- | Input signal channel 5 negative end | 25 | AI4+ | Input signal channel 4 positive end |
| 3 | AI6+ | Input signal channel 6 positive end | 24 | AI3- | Input signal channel 3 negative end |
| 4 | AI6- | Input signal channel 6 negative end | 23 | AI3+ | Input signal channel 3 positive end |
| 5 | AI7+ | Input signal channel 7 positive end | 22 | AI2- | Input signal channel 2 negative end |
| 6 | AI7- | Input signal channel 7 negative end | 21 | AI2+ | Input signal channel 2 positive end |
| 7 | DATA+ | RS485 ACommunication + | 20 | AI1- | Input signal channel 1 negative end |
| 8 | DATA- | RS485 BCommunication - | 19 | AI1+ | Input signal channel 1 positive end |
| 9 | +Vs | Power input + | 18 | AI0- | Input signal channel 0 negative end |
| 10 | GND | Power input - | 17 | AI0+ | Input signal channel 0 positive end |
Three Module indicator light
1) POW/SET;The green light is on, and the module works.
2) TXD/RXD:Communication status indication
The green light flashes: the communication receives the data, but no data is returned.
The green light and red light flashing alternately: the module is receiving and sending data.
The green light is always bright: the communication RS485 line on DATA+ and DATA- is reversed or the connection is broken.
4. Module right reset switch function description
1) When the communication parameters (module address, baud rate, check bit) are not known or the communication parameters are misplaced, the solution is to reset the communication parameters; we hold down the reset switch with the clip and do not open it; after 5 seconds, the module is powered off and reset automatically, and then the communication parameters have been reset.
2) After the factory and reset the communication parameters: Address: 1, baud rate: 9600bps, check bit: none.
Five. Module installation method
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