8 Application Instructions API 100-149 for writing the data again. 5. M1141 will be On when sending address error occurs. The program will trigger M1141 and send request to M1122 for writing the data again. M1002 Set up communication protocol to 9600, 8, E, 1 Retain communication protocol X0 Set up communication time-out: 100ms Set up transmission request M1129 Communication time-out Retry M1140 M1141 Data receiving error Retry Sending address error Retry X0 Set up communication instruction: device address 01, data address H0100 data H1770 receiving completed M1127 M1127 handle received data The received data are stored in D1070 ~ D1085 in ASCII format.
Sending/receiving of data is completed. The flag is reset. M1129 Communication time-out. The flag is reset. Program Example 4: 1. In the communication between PLC and VFD-S series AC motor drive (ASCII Mode, M1143 = Off), retry when communication time-out, data receiving error and sending address error occur. Times of retry = D0 (default = 3). 2. When X0 = On, PLC will write H1770(K6000) into VFD-S data adress H0100 of device 01. When communication Retry is successful, the user can return to controlling by triggering criteria. 3. M1129 will be On when communication time-out occurs. The program will trigger M1129 and send request to M1122 for writing the data again.
Times of Retry = D0 (default = 3) 4. M1140 will be On when data receiving error occurs. The program will trigger M1140 and send request to M1122 for writing the data again. Times of Retry = D0 (default = 3) 5. M1141 will be On when sending address error occurs. The program will trigger M1141 and send request to M1122 for writing the data again. Times of Retry = D0 (default = 3) DVP-PLC Application Manual 8-8 MOV H87 D1120 SET M1120 MOV K100 D1129 SET M1122 MODWR K1 H0100 H1770 RST M1127 RST M1129