9. Data Processing Design Examples 9.4 MEMR/MEMW - File Register Access D X M Y File register memory Data register memory C T S MEMW MEMR Write Read File register PLC internal memory Data register memory File register memory Data register memory Control Purpose: z Sending 50 data of No.0~No.49 file registers to D4000~D4049 when PLC is power up. z Writing in 100 data of D2000~D2099 into No.0~No.99 file registers when X0 = ON. z Reading out 100 data in No.0~No.99 file registers to D3000~D3099 when X1 = ON. Devices: Control Program:
M1002 Read out the data from No.0~No.49 file registers to D4000~D4099 by using special D and special M when PLC is power up X0 X1 DVP-PLC Application Examples 9-5 Device Function X0 Write data into file registers X1 Read data in file registers SET M1101 MOV K0 D1101 MOV K50 D1102 MOV K4000 D1103 MOV K4000 D1103 MOV K0 D1101 MOV K50 D1102 EMW D2000 K0 K100 EMR K0 D3000 K100