9 Application Instructions API 150-199 Remarks: 1. Flags and special registers for the built-in RTC in SA/SX/SC/EH/EH2/SV/EH3/SV2 series MPU. 2. How to correct RTC: There are 2 ways to correct the built-in RTC. a) By a specific instruction. (See API 167 TWR instruction) b) By peripheral devices, WPLSoft, the ladder diagram editing software. 3. How to display 4-digit year in A.D.: a) Normally, the year is only displayed in 2 digits (e.g. 2003 displayed as 03). If you wish the year to be displayed in 4 digits, please key in the following program at the start of the program. M1002 display 4-digit year in A.D. b) The original 2-digit year will be switched to a 4-digit year, i.e.
the 2-digit year will pluses 2,000. c) If you wish to write in new time in the 4-digit year display mode, you can only write in a 2-digit year (0 ~ 99, indicating year 2000 ~ 2099). For example, 00=year 2000, 50=year 2050 and 99=year 2099. However, 2000 ~ 2099 can be written in SX V3.0 and above. DVP-PLC Application Manual 9-73 Device Name Function M1016 Displaying year in A.D. in RTC When Off, D1319 will display 2-digit year in A.D. When On, D1319 will display “2-digit year in A.D + 2,000”.
M1017 ±30 seconds correction Correction takes place when M1017 goes from Off to On (reset to 0 when in 0 ~ 29 second; minute pluses 1 and second resets to 0 in 30 ~ 59 second) M1076 Malfunction of RTC On when the set value exceeds the range. (only available when the power is being switched on). D1313 Second 0 ~ 59 D1314 Minue 0 ~ 59 D1315 Hour 0 ~ 23 D1316 Day 1 ~ 31 D1317 Month 1 ~ 12 D1318 Week 1 ~ 7 D1319 Year 0 ~ 99 (2-digit year in A.D.) SET M1016