下表中描述了所使用的，并显示在以下接线图中。端子分配模拟组合模块上20端子I/O连接器的引脚分配如下表所示。表12-2。IC693ALG442引脚号信号名称信号定义的端子引脚分配1 24VIN用户提供+24伏输入2 JMP1跳线端子，用于连接250Ω CH1 3 JMP2的感测电阻器用于连接250的跳线端子Ω CH2 4+CH1的感测电阻器差动模拟输入通道1的正极连接5+CH2差动模拟输入信道2的正极连接6–CH1差动模拟输入渠道1的负极连接7–CH2差动输入渠道2的负极连接8 JMP3用于连接250的跳线端子Ω CH3 9 JMP4的感测电阻器用于连接250的跳线端子Ω CH4 10+CH3感测电阻器差分模拟输入通道3正极连接11+CH4差分模拟输出通道4正极连接12–CH3负极used are described in the following table and are shown in the following wiring diagrams. Terminal Assignments Pin assignments for the 20 terminal I/O connector on the Analog Combo module are as shown in the following table. Table 12-2. Terminal Pin Assignments for IC693ALG442 Pin Number Signal Name Signal Definition 1 24VIN User Supplied +24 Volt Input 2 JMP1 Jumper terminal for connecting 250Ω sense resistor for CH1 3 JMP2 Jumper terminal for connecting 250Ω sense resistor for CH2 4 +CH1 Positive connection for differential analog input channel 1 5 +CH2 Positive connection for differential analog input channel 2 6 –CH1 Negative connection for differential analog input channel 1 7 –CH2 Negative connection for differential analog input channel 2 8 JMP3 Jumper terminal for connecting 250Ω sense resistor for CH3 9 JMP4 Jumper terminal for connecting 250Ω sense resistor for CH4 10 +CH3 Positive connection for differential analog input channel 3 11 +CH4 Positive connection for differential analog input channel 4 12 –CH3 Negative
