描述
一、产品定位与核心价值
1.产品定位
类型:紧凑型数据采集与控制模块,集成多通道模拟输入(AI)、数字输入(DI)、数字输出(DO)、热电阻/热电偶温度测量及Modbus RTU/TCP通信功能,适用于中小型自动化系统。
系列背景:
AL81G属于经济型数据采集模块,采用模块化设计,支持DIN导轨安装,兼容标准工业协议,适合预算有限但需多参数监测的场景。
2.核心价值
多参数集成:单模块支持电压/电流信号采集、温度测量、开关量监测,减少系统复杂度与成本。
高精度测量:16位ADC分辨率,确保模拟量采集精度(如±0.1%FS),满足工业监测需求。
灵活通信:支持RS485(Modbus RTU)与以太网(Modbus TCP),可与PLC、HMI、SCADA系统无缝对接。
可靠耐用:工业级设计(-20℃~70℃工作温度),抗电磁干扰(EMC),适合恶劣环境长期运行。
二、核心功能与技术参数
1.信号采集功能
模拟输入(AI):
通道数:8通道(具体需参考手册,可能支持电压/电流混合输入)。
输入类型:
电压:0-5V、0-10V、±5V、±10V(软件可配置)。
电流:4-20mA、0-20mA(需外接250Ω电阻)。
分辨率:16位(1/65536满量程精度)。
采样率:每通道100ms(可调,需结合固件版本)。
隔离:通道间1500V AC隔离,避免信号干扰。
数字输入(DI):
通道数:4通道(湿接点,支持PNP/NPN输入)。
输入电压:12-24V DC(兼容标准传感器信号)。
响应时间:<10ms(快速检测开关状态变化)。
温度测量:
支持类型:
热电阻(RTD):PT100、PT1000(3线制,消除线阻误差)。
热电偶(TC):K、J、T型(需冷端补偿)。
精度:PT100测量精度±0.5℃(25℃时)。
分辨率:0.1℃。
2.控制输出功能
数字输出(DO):
通道数:4通道(继电器输出,触点容量5A/250V AC或5A/30V DC)。
输出类型:常开(NO)/常闭(NC)可配置,支持脉冲输出(用于电机启停控制)。
响应时间:<10ms(快速执行控制命令)。
3.通信功能
RS485(Modbus RTU):
波特率:9600~115200 bps(可配置)。
地址:1~247(软件可设,避免地址冲突)。
传输距离:1200m(无中继,实际受线缆质量影响)。
以太网(Modbus TCP):
接口:RJ45,支持10/100Mbps自适应。
IP配置:静态IP或DHCP自动获取,支持跨网段通信。
并发连接:支持多主机同时访问(需结合固件版本)。
4.硬件规格
电源:
输入:24V DC(±15%),功耗<5W(典型值)。
保护:反接保护、过压保护(30V DC)。
安装方式:
DIN导轨安装(35mm标准导轨),兼容配电柜布局。
外壳材质:
阻燃ABS塑料,IP20防护等级(防尘,需避免液体溅入)。.
1.Product Positioning and Core Value
1.Product Positioning
Type:Compact data acquisition and control module,integrated multi-channel analog input(AI),digital input(DI),digital output(DO),thermoresistance/thermocouple temperature measurement and Modbus RTU/TCP communication functions,suitable for small and medium-sized automation systems.
Series background:
AL81G is an economical data acquisition module,adopts a modular design,supports DIN rail installation,is compatible with standard industrial protocols,and is suitable for scenarios with limited budget but multi-parameter monitoring.
2.Core Value
Multi-parameter integration:single module supports voltage/current signal acquisition,temperature measurement,switching quantity monitoring,reducing system complexity and cost.
High-precision measurement:16-bit ADC resolution ensures analog acquisition accuracy(such as±0.1%FS)and meets industrial monitoring needs.
Flexible communication:supports RS485(Modbus RTU)and Ethernet(Modbus TCP),and can be seamlessly connected to PLC,HMI,and SCADA systems.
Reliable and durable:Industrial-grade design(-20℃~70℃working temperature),anti-electromagnetic interference(EMC),suitable for long-term operation in harsh environments.
2.Core functions and technical parameters
1.Signal acquisition function
Analog input(AI):
Number of channels:8 channels(refer to the manual for details,and may support voltage/current mixed input).
Input type:
Voltage:0-5V,0-10V,±5V,±10V(software configurable).
Current:4-20mA,0-20mA(external 250Ωresistor is required).
Resolution:16 bits(1/65536 full scale accuracy).
Sampling rate:100ms per channel(adjustable,required to combine firmware version).
Isolation:1500V AC isolation between channels to avoid signal interference.
Digital Input(DI):
Number of channels:4 channels(wet contacts,support PNP/NPN input).
Input voltage:12-24V DC(compatible with standard sensor signals).
Response time:<10ms(quick detection of switch status changes).
Temperature measurement:
Supported types:
Thermal resistance(RTD):PT100,PT1000(3-wire system,eliminates line resistance error).
Thermocouple(TC):K,J,T-type(requires cold junction compensation).
Accuracy:PT100 Measurement accuracy±0.5℃(at 25℃).
Resolution:0.1℃.
2.Control output function
Digital output(DO):
Number of channels:4 channels(relay output,contact capacity 5A/250V AC or 5A/30V DC).
Output type:Normally open(NO)/Normal closed(NC)configurable,supporting pulse output(for motor start and stop control).
Response time:<10ms(quick execution of control commands).
3.Communication function
RS485(Modbus RTU):
Baud rate:9600~115200 bps(configurable).
Address:1~247(Software can be set to avoid address conflicts).
Transmission distance:1200m(no relay,actually affected by cable quality).
Ethernet(Modbus TCP):
Interface:RJ45,supports 10/100Mbps adaptation.
IP configuration:static IP or DHCP automatically obtains,supporting cross-network communication.
Concurrent connection:Supports simultaneous access of multiple hosts(need to be combined with firmware version).
4.Hardware specifications
power supply:
Input:24V DC(±15%),power consumption<5W(typ.).
Protection:Reverse connection protection,overvoltage protection(30V DC).
Installation method:
DIN rail installation(35mm standard rail),compatible with distribution cabinet layout.
Housing material:
Flame retardant ABS plastic,IP20 protection level(dust-proof,liquid splashing is required).
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