2 Functions of Devices in DVP-PLC Function Group Real Time Clock Number M1016, M1017, M1076, D1313 ~ D1319 Contents: 1. Special M and special D relevant to RTC 2. If the set value in RTC is incorrect, the time will be recovered as “Saturday, 00:00 Jan. 1, 2000” when PLC is powered and restarted. 3. D1313 ~ D1319 will immediately update the RTC only when in TRD instruction or WPLSoft monitoring mode. 4. How to make corrections on RTC: a) Use TWR instruction fir SA/SX/SX/EH2/SVEH3/SV2 series MPU. See API 167 TWR for more details. b) Use WPLSoft, ISPSoft, or digital display panel DU-01. Function Group π(PI) Number D1018, D1019 Contents: 1.
D1018 and D1019 are combined as 32-bit data register for storing the floating point value of π(PI) 2. Floating point value = H 40490FDB Function Group Adjustment on Input Terminal Response Time Number D1020, D1021 Contents: 1. D1020 can be used for setting up the response time of receiving pulses at X0 ~X7 for SS/ES/EX/SA/SX/SC series MPU. (Setup range: 0 ~ 20; Unit: ms) 2. D1021 can be used for setting up the response time of receiving pulses at X10 ~X17 for ES series MPU. (Setup range: 0 ~ 20; Unit: ms) 3. D1021 can be used for setting up the response time of receiving pulses at X10 ~X11 for SC series MPU. (Setup DVP-PLC Application Manual 2-75 No.
Name Function M1016 Year (in A.D.) in RTC Off: display the last 2 digits of year in A.D. On: display the last 2 digits of year in A.D. plus 2,000 M1017 ±30 seconds correction From “Off” to “On”, the correction is enabled. 0 ~ 29 second: minute intact; second reset to 0 30~ 59 second: minute + 1; second reset to 0 M1076 RTC malfunction Set value exceeds the range; dead battery M1082 Flag change on RTC On: Modification on RTC D1313 Second 0 ~ 59 D1314 Minute 0 ~ 59 D1315 Hour 0 ~ 23 D1316 Day 1 ~ 31 D1317 Month 1 ~ 12 D1318 Week 1 ~ 7 D1319 Year 0 ~ 99 (last 2 digits of Year in A.D.)