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1、Date:2022/12/4File:SSP2_03C.1SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟量处理模拟量处理液位变送器 高液位低液位Date:2022/12/4File:SSP2_03C.2SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟量模块的用途模拟量模块的用途生产
2、过程生产过程物理量标准的模拟信号传感器变送器 压力 温度 流量 速度 pH 值 粘性 等 500mV 1V 5V 10V 20mA4.20mA等DACPQW.PQW.:PQW.模拟量输出模块模拟量输出模块MR模块ADC结果存储器PIW.PIW.:PIW.模拟量输入模块模拟量输入模块CPU:L PIW 304T PQW 320:模拟执行器 物理量.Date:2022/12/4File:SSP2_03C.3SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automa
3、tion量程卡量程卡Date:2022/12/4File:SSP2_03C.4SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for AutomationS7-300模拟量模块的寻址模拟量模块的寻址IM256 to270336 to350352 to366368 to382304 to318320 to334272 to286288 to302(发送)槽口号 2 3 4 5 6 7 8 9 10 11 384 to398400 to414432 to446448 to4
4、62464 to478480 to494496 to510416 to430机架机架 1R0电源模块IM(接收)电源模块CPU512 to526528 to542544 to558560 to574576 to590592 to606608 to622624 to638机架机架 2IM(接收)电源模块机架机架 3640to654656to670672to686688 to702704 to718720 to734736 to750752 to766IM(接收)电源模块Date:2022/12/4File:SSP2_03C.5SIMATIC S7Siemens AG 2000.All right
5、s reserved.Information and Training CenterKnowledge for Automation模拟量模块模拟量模块SM335(输入输入)Date:2022/12/4File:SSP2_03C.6SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟模块模拟模块SM335(输出输出)Date:2022/12/4File:SSP2_03C.7SIMATIC S7Siemens AG 2000.All right
6、s reserved.Information and Training CenterKnowledge for Automation模拟输入模块模拟输入模块 SM331Date:2022/12/4File:SSP2_03C.8SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟量的表达方式和测量值的分辨率模拟量的表达方式和测量值的分辨率20212223242526272829210211212213214VZ16进制.位值十进制0123456
7、789101112131415位的序号单位位的分辨率+符号111*15*=0 或 18000000001128*8402010840000000000000000000002164132116181412*91011121314Date:2022/12/4File:SSP2_03C.9SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation在不同测量范围下模拟量的表达方式在不同测量范围下模拟量的表达方式范围超上限超上界额定范围超下界超下限测量范围 1
8、0V电压例如：=11.75911.7589 :10.000410.00 7.50 :-7.5-10.00-10.0004 :-11.759=22.81522.810 :20.000520.00016.000 :4.0003.9995 :1.1852=1000.11000.0 :850.1850.0 :-200.0-200.1 :-243.0=352.778352.767 :300.011300.000225.000 :0.000不允许负值单位3276732511 :276492764820736 :0-32768-1 :-4864Date:2022/12/4File:SSP2_03C.10SI
9、MATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟输入量的规范化模拟输入量的规范化500,00,0027648Date:2022/12/4File:SSP2_03C.11SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟量输出的规范化模拟量输出的规范化276480 0,0100,0Date:
10、2022/12/4File:SSP2_03C.12SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation模拟输出量的表达形式模拟输出量的表达形式范围超上限超上界额定范围超下界超下限单位=3276732511 :2764927648 :0 :-6912-6913 :-27648-27649 :-32512=-32513 输出范围：电压011.7589 :10.000410.0000 :00 to 10V1 to 5V05.8794 :5.00025.
11、0000 :1.0000011.7589 :10.000410.0000 :0 :-10.0000-10.0004 :-11.75890 10V 00.99990 0 输出范围：电流023.515 :20.000720.000 :00 to 20mA4 to 20mA022.81 :20.00520.000 :4.000023.515 :20.000720.000 :0 :-20.000-20.007 :-23.5150 20mA 03.99950 0Date:2022/12/4File:SSP2_03C.13SIMATIC S7Siemens AG 2000.All rights reser
12、ved.Information and Training CenterKnowledge for Automation练习练习3.13.1:配置配置模拟量模块模拟量模块SM335Date:2022/12/4File:SSP2_03C.14SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation练习练习3.23.2:配置模拟量模块配置模拟量模块 SM331Date:2022/12/4File:SSP2_03C.15SIMATIC S7Siemens A
13、G 2000.All rights reserved.Information and Training CenterKnowledge for Automation练习练习3.33.3:控制罐的液位控制罐的液位液位传感器最低液位设定为 50L，当实测液位低于该值时，通过 Q 5.2输出一个信息。最高液位 600L，对应通道0上的10 V 模拟量Date:2022/12/4File:SSP2_03C.16SIMATIC S7Siemens AG 2000.All rights reserved.Information and Training CenterKnowledge for Automation练习3.4:结构化的极限监视功能FB120ACTVHLLLHYSQH QL LIMIT模拟变量的实际值HLLLHYSHYSQH QL t功能 符号LO_LIMHI_LIM