12. Communication Design Examples Send the data which will stop VFT6000 to D200~D203 X0 Execute the 1st RS instruction when M0=ON X0 Execute the 2nd RS instruction when M1=ON M0 Sending request M1 M2 X0 When M0 = ON, send out 16 bytes data in D100~D107 and store the received data from slave in D120~D127 X1 When M1 = ON, send out 8 bytes data in D200~D203 and store the received data from slave in D220~D223 M1123 Reset M1123 M1129 Retry after receiving time-out Reset M1129 Program Description: z Initialize PLC RS-485 communication port and set the communication format as, 9600, 8, E, 1. The RS-485 communication format of VLT6000 should be the same with Master PLC.
z When X0 = ON, VLT6000 starts to run forward in 40Hz and its output frequency will be read out. DVP-PLC Application Examples 12-51 MOV H207F D106 MOV H4400 D107 MOV H602 D200 MOV H401 D201 MOV H77 D202 MOV H7600 D203 PLS M0 PLS M1 SET M1122 RS D100 K16 D120 K16 RS D200 K8 D220 K8 RST M1123 PLS M2 RST M1129