AAM21 mV，热电偶和 RTS 输入模块
AAM21J mV，热电偶和 RTS 输入模块(符合 IEC584-1995，IEC751-1995)
Small Electric Power Input Module
This module receives signals from mV, thermocouple, RTD and potentiometer.
Item |
Specifications |
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Model |
AAM21, AAM21J (*4) |
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Input signal |
mV |
JIS,IEC Standard Thermocouple type K, T, J, E, B (*1), R, S, IEC Standard type N |
RTD JIS JPt100 or JIS Pt100 (DIN Pt100) 3-wire type |
3-wire potentiometer’s |
Input range |
-50 to 150 mV |
-50 to 150 mV |
0 to 333 Ω |
The total residence is within 100 to 2000 Ω, and the span is 50 % or more of the total resistance. (*2) |
Allowable input voltage |
-0.5 to 4.0 V DC (between terminals B-C) |
- |
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Input resistance |
1 M V at power-up (3 k V at power-down) |
- |
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Accuracy |
±20 µV |
±20 µV |
±0.08 V |
±0.2 % |
Data update period |
100 ms |
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Signal source resistance |
1000 Ω or less |
150 Ω or less (wiring resistance per wire) |
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RJC input |
- |
-10 to 70 °C |
- |
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RJC accuracy |
- |
Within ± 1 °C (*3) |
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Measuring current |
- |
1 mA |
- |
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Auxiliary voltage output |
1 to 5 V DC (Signal ground is shared with system) Output resistance: 1 Ω or less Allowable load resistance: 10 kΩ or more Output range: 0.5 to 5.5 V DC Accuracy: ±12 mV |
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Burnout detection |
Select from UP/DOWN/OFF (*5) |
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Burnout detection time |
Within 60 s |
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Burnout detection current |
0.1 µA (terminal B only) (*5) |
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How installed |
Installed in AMN11 Nest for Analog I/O Modules |
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How connected |
Connected to the terminals of the I/O module nest with M4 screws |
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Signal isolation |
Input signals are isolated between systems. Withstanding voltage: 1500 V AC/min |
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Current consumption |
150 mA or less (5.0 V DC) |
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Input linearization |
None |
Available |
Available |
None |
Effect of signal source resistance/wiring resistance (burnout is OFF) |
1 kΩ of signal source resistance: Input conversion ± 20 µV or less |
Wiring resistance 10 Ω for terminals A and C: Input conversion ±40 mΩ or less (Wiring of terminals A and C must have the same resistance) |
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Effect of ambient temperature change |
For 10 °C change: mV input: ±40 µV Thermocouple input: ±40 µV RTD input: ±0.16 Ω Potentiometer input: ±0.4 % of span Auxiliary voltage output: ±24 mV |
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How input signals are specified |
Specify input signals and range by software setting. |
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*1: Type B does not carry out temperature compensation.
*2: Though allowable input range is within 0 to 30000 Ω, in case of keeping accuracy, use within input range.
*3: If measured temperature is lower than 0 °C, multiply the above value by the following coefficient (K):
Thermoelectric power per degree at 0 °C
Thermoelectric power per degree at measured temperature
DCS培训资料：
控制性能
除连续控制和顺控块实现基本的控制功能外，还提供高级顺控块，如单元仪表和顺序功能图(SFC)块。所提供的200多种功能块可以满足连续和批处理控制系统对不同过程控制应用的需求。
连续控制块
连续控制块基于过程值进行计算，用于过程监.视和控制。包括PID控制器、输入指示器、手动加载器、信号选择器、信号设定器和自整定控制器。
顺控块
顺控块用于回路设备层的通用顺序控制，如安全联锁顺控和过程监.视顺控。该功能块由使用决策表形式的序列表和逻辑运算子表达的逻辑图表编码而成。此外，开关仪表、定时器、计数器、代码输入/输出和许多其他块作为顺控辅助块。
序列表 逻辑图
运算块
运算块是连续控制和顺序控制的辅助功能，对模拟信号和接点(逻辑)信号进行一般计算。
SFC块
SFC块使用SFC描述语言编写。SFC块符合IEC标准，是类似流程图的记述顺序控制的开放式语言。可直观显示运行阶段，在运行阶段管理中非常适用。对于单元顺控的详细描述，可使用顺序和批处理语言(SEBOL)作为顺控语言。
SFC
面板块
使用面板功能块，可以将多个功能块当作一个单一的功能块在HMI上显示和操作。
模拟型
由多个功能块构成的控制回路，整个回路中功能块的主控变量(如测量过程变量、设定点值和运行输出值)可指定给一个面板块，这样就可通过操作和监.视单一的面板块
控制整个回路。
顺控型
由多个按钮构成的控制方案，整个方案中的主按钮可指定给一个面板块，这样就可通过操作和监.视单一的面板块执行整个方案。
混合型
将模拟型和顺控型相结合，由多个功能块和按钮构成的控制方案可在单一的面板块
