MainWindow 0 0 800 600 MainWindow 40 10 89 25 Connect 40 142 126 25 Number of values: 40 110 126 26 Start address: 170 110 113 25 170 140 113 25 160 10 41 25 Table: 207 10 86 25 40 167 126 17 Result: 10 70 311 381 Read Data From Device 20 120 257 221 100 350 80 25 0 0 Read 340 70 191 111 Write Single Coil 10 20 61 23 Coil 70 40 113 25 10 40 71 26 address: 20 70 141 25 Write Single Coil groupBox connect label_5 label_4 startAddress readSize label_6 writeTable label_9 groupBox_2 0 0 800 22