Chapter 6 Applied Instructions Symbol Mode : The triggering and receiving method Start1 : Trigger signal for starting set1 Start2 : Trigger signal for starting set2 Completion signal of when receiving response data from DMV is Ready : complete A serial port or network communication port for the PLC to send or ComNo : receive data Id_Ip : Serial communication station address or network IP of DMV Length : Length of the data to be read Address : Starting device where DMV data to be read are stored Shoot1 : Output signal when PLC notifies DMV to enable the detection of set1 Shoot2 : Output signal when PLC notifies DMV to enable the detection of set2 RdData :
Starting device where the data that the PLC receives from the DMV Ok : Communication success flag are stored 6_ Err : Communication error flag ErrCode : Communication error code Explanation 1. Mode sets the method through which the PLC triggers DMV including DMV1000 and DMV2000 and the receiving method. There are 2 modes: 0 and 1 for option. If the setting exceeds the range, PLC will automatically run in mode 0. 2. Please refer to following example explanation for the function of Start1 , Start2 , Ready , Shoot1 , Shoot2 , RdData and Ok and the process of detection triggering. 3. ComNo sets a communication port number of the PLC.
The number 1 represents COM1, number 2 represents COM2, and number 4 represents Ethernet port. If the setting is not one of the numbers mentioned above or represents the communication port that the PLC does not support, the error flag Err will change to On and the error code 16#0001 will show up. 4. Id_Ip sets the communication station address (Mac ID) of the slave DMV or network IP. Address is the communication address where DMV detection result is read. Length is the length of the read detection data. 6-605