Cell phone jammer applies the foreign advanced technology

Scientists have also combined the practical condition of mobile communication to develop    cell  phone  jammer     the high-tech product. [Answer] identifier does not necessarily mean node address, node address reflected in the network, other nodes can be just a sign of recognition, reflected in the CAN frame on the line. In this network environment, you need this flag from the node identified by the master node which the inverter, the master PLC need to identify what this flag is the inverter, the inverter needs to know who in turn said to me command it? It only knows the command is sent to me, I return to be able to identify their own data on it, this process only needs to know their frequency identification information on it. For example: companies require employees to write weekly work reports, CEOs need it? [Q] Oh, I'm ashamed, two moderators also have the patience to really help me.   cell  phone  jammer     makes cell phones can’t work. CAN I contacted only two weeks, many of them do not understand, is relatively weak, asked questions are also weak, sorry, two moderators of hard. The original single master, do not set the master ID, in practical applications, the ID is set to unconditionally receive all ID's request that the acceptance filter bits are being blocked, right? But I still do not understand 2 points, namely, 1, a message to the slave master, the master must first send the command to give him? Their own initiative from the machine can send a message to the master?    cell  phone  jammer makes cell phones can’t call or answer.From the station you can take the initiative to send, how to distinguish that which the master station to send it from the machine? 2, from the machine, set its ID in the end what is it? If the PLC to the drive to send 000,000,000,002 1, he can receive, PLC sends 10000000002 to him, he can still receive, how he set the ID? Does not do the filtering before the 8-bit? After only three filter?
For a single master station, the agreement with you this simple example, the host does not need ID, just distribution of good from the station ID on it. In addition, ID should be composed of two parts, the function code + station address. Then your case, for example, you can think of the former four yards for the function code 1000, 1000 that read data from the station, while the middle four yards context of its significance, and the last three yards 001, 002, and so that means from the station address. The manufacture of BH-201    cell  phone  jammer applies the foreign advanced technology.That the host sends 100,000,000,001 says to read the data from station 1, of course, you also have to define the reply message structure, such as the definition of the first four code 0100 means that the return data, and that if received from the master station 1 station to read the message, it will return a 01,000,000,001 packets that the host response to the request. Of course, you can also define additional function codes. In single-master system, you can not define the master station address, because all of the slaves are not going to handle the response message, only the master will handle.