EMERSON 9199-00002 A6120 监测模块 持续模块 输入输出模块，绝缘监测模块，是针对直流系统正负极对地绝缘电阳达到告警整定值，发出接地告警信号，并进行接地支路检测，将接地故障定位在少数供电回路，以提高接地故障处理速度，减轻劳动，缩短接地周期，使电力系统运行更加安全能监测两段直流母线电压、正负母线对地电压，并显示。能监测两段直流母线对地绝缘电阻，并显示正负母线对地绝缘电阻值。具有通讯(RS485)功能，4个RS485接口:可以通过通讯读取电压值、电阻值、SOE事件记录、修改时间及对时。每个RS485接口均有通讯状态指示灯 一红一绿，指示收发状态。开关状态量采集功能，能采集3路开关状态量。
9199-00002 A6120
用PLC进行网络设计难度比PLC单机控制大得多。首先应先用自己较熟悉的机型，对其基本指令和功能指令有较深入的了解，并且指令的执行速度和用户程序存储容量也应仔细了解。否则，不能适应实时要求，造成崩溃。另外，还要考虑通信接口、通信协议、数据传送速度等。最后，还要向商家寻求网设计和软件技术支持及详细技术资料。在编制软件前，应首先熟悉所先用的PLC产品软件说明书。若用图形编程器或软件包，则可直接编程，若用手持编程器编程，应先画出梯形图后再编程。编程结束后先空调程序，待各个动作正常后，再在设备上调试。
9199-00002 A6120
EMERSON 9199-00002 A6120 monitoring module continuous module input and output module, insulation monitoring module, is aimed at the alarm setting value of the positive and negative pole to ground insulation of the DC system, issuing a grounding alarm signal, and conducting grounding branch detection. It locates the grounding fault in a few power supply circuits to improve the speed of grounding fault handling, reduce labor, shorten the grounding cycle, and make the operation of the power system safer. It can monitor the voltage of two DC busbars and the voltage of positive and negative busbars to ground, and display them. Can monitor the insulation resistance of two DC busbars to ground and display the insulation resistance values of positive and negative busbars to ground. Equipped with communication (RS485) function and 4 RS485 interfaces: can read voltage values, resistance values, SOE event records, modify time, and synchronize through communication. Each RS485 interface has communication status indicator lights, one red and one green, indicating the transmission and reception status. The switch state quantity collection function can collect three switch state quantities.
9199-00002 A6120
The difficulty of using PLC for network design is much greater than that of PLC single machine control. Firstly, one should first use a familiar model to have a deeper understanding of its basic and functional instructions, and also carefully understand the execution speed of instructions and the storage capacity of user programs. Otherwise, it cannot adapt to real-time requirements and cause crashes. In addition, it is necessary to consider communication interfaces, communication protocols, data transmission speed, etc. Finally, it is necessary to seek website design, software technical support, and detailed technical information from merchants. Before developing software, one should first familiarize themselves with the PLC product software manual used. If using a graphic programmer or software package, programming can be done directly. If using a handheld programmer for programming, the ladder diagram should be drawn first before programming. After programming, start the air conditioning program and wait for all actions to be normal before debugging on the device.
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