Brand Name:icchipcn.com
Condition:New
Type:Voltage Regulator
Model Number:MBSL4AI
Chapter 1 Product Introduction
1. Product overview
The MBSL4AI?module is a 4-channel analog acquisition module, which can collect commonly used 4-channel?0-20mA?and?4-20mA?analog?signals?.?The collected analog signal data is output through the RS485 interface.?The module adopts the standard Modbus RTU communication protocol, which can be directly adapted to various upper computer configuration software, PLC, DCS, etc.
1.?4-way single-ended analog input (DC 0-20mA/4-20mA), using 12-bit industrial-grade AD acquisition chip
2.?RS485 MODBUS RTU standard communication is adopted, which can be networked with upper computer configuration software, PLC, industrial touch screen, etc.,?with communication status indicator
3.?The communication circuit adopts lightning protection and anti-interference design
4.?The RS485communication signal output interface adopts overvoltage and overcurrent double protection.
5. It?can be widely used in signal acquisition and control of industrial field equipment.
6.?The communication format can be set by software, and the module can be restored to factory settings after long pressing the "button" on the back of the module for 3 seconds.??
7.?Power polarity protection
2. Main technical indicators
project | technical indicators |
signal input | 1.?Analog input?channel:?4?-channel isolated acquisition 2.?Analog input type:?0-20mA/4-20mA?analog signal 3.?Analog input accuracy?: ±0.1 4.?Working temperature range: -20～70℃ 5.?Resolution: 12bit 6.?External power supply: DC9V～30V/2W |
Communication output | 1?.?Communication protocol: MODBUS-RTU 2?.?Interface type: isolated RS485 communication, the output interface adopts overvoltage and overcurrent double protection 3?.?Baud rate: 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, 115200 4?.?Parity bit: no parity, even parity, odd parity 5?.?Setting method: module address, baud rate, check digit can be set by software 6?.?Communication distance: @9600bps 1200 meters |
Module size and installation method | 1. Installation method: standard DIN rail installation or screw installation 2. Dimensions: 100×55×32mm |
working environment | Temperature: -20?～+55℃?Humidity: 35?～85%?(no condensation) |
Working power | 1?.?Power supply voltage: 10V ~ 30V wide range power supply, with power polarity protection 2?.?Power consumption: less than 2W |
3. Interface definition
PW+ | External power input positive terminal |
PW- | External power input negative terminal |
485A | RS485?signal A+ |
485B | RS485?signal B- |
AI1 | The positive terminal of the first analog input |
AI2 | The positive terminal of the second analog input |
AI3 | The positive terminal of the third analog input |
AI4 | The positive terminal of the 4th analog input |
AG | Signal ground, analog input negative terminal |
4. Schematic diagram of analog input
Chapter 2?Description of Modbus?Registers and Communication Protocol
one.?MODBUS function codes and address ranges supported by the module
register type | address range | function code | Function code description |
input register | 30001-30004 | 0x04H | read one or more input registers |
holding register | 40001-40016
| 0x03H | read one or more holding registers |
0x06H | Write a data to the holding register |
0x10H | Write one or more data to holding register |
two.?Register definition description
1.?Input register (function code:?0x04H?)
address | parameter | length | read?/?write | minimum value | maximum value | illustrate |
30001 | AI1 | 2 | read only | 0 | 4095 | Analog input channel?1 AD?conversion value |
30002 | AI2 | 2 | read only | 0 | 4095 | Analog input channel?2 AD?conversion value |
30003 | AI3 | 2 | read only | 0 | 4095 | Analog input channel?3 AD?conversion value |
30004 | AI4 | 2 | read only | 0 | 4095 | Analog input channel?4 AD?conversion value |
2.?Holding registers (function code:?0x03H?,?0x06H?,?0x10H?)
address | parameter | length | read?/?write | minimum value | maximum value | illustrate |
40009 | AI1 | 2 | read only | 0 | 4095 | Analog input channel?1 AD?conversion value |
40010 | AI2 | 2 | read only | 0 | 4095 | Analog input channel?2 AD?conversion value |
40011 | AI3 | 2 | read only | 0 | 4095 | Analog input channel?3 AD?conversion value |
40012 | AI4 | 2 | read only | 0 | 4095 | Analog input channel?4 AD?conversion value |
|
40003 | device address | 2 | read?/?write | 1 | 247 | 1?(default) |
40004 | baud rate | 2 | read?/?write | 1 | 5 | 1(4800) 2(9600)?default??3(19200) 4(38400) 5(57600) 6(115200) |
40005 | Check Digit | 2 | read?/?write | 1 | 3 | 1(?No parity?.)?Default?2(?Odd parity?) 3(?Even parity?) |
40007 | product version | 2 | read only | 0 | -- | year?+?month?+?day |
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