Delta AH500 Programming Manual page 105

AH 5 00 Pr ogr am m ing Ma n ua l
Function
Second
8. The PLC status change log
 SR309~SR390
SR309: The maximum number of PLC status change logs which are stored in SR309 is 20.
Every PLC status change log occupies 4 registers. The PLC status change actions
which are recorded are numbered, as shown in the following table.
The PLC is supplied with power.
The PLC is disconnected.
The PLC starts to run.
The PLC stops running.
Default setting of the PLC
(1. RST button; 2. Communication command)
Pressing the CLR button on the PLC
(Clearing the data in the latched device)
SR310: The PLC status change log pointer points to the latest PLC status change log.
When the PLC status is changed once, the value of the PLC status change log
pointer increases by one. The range of pointer values is 0~19. For example, the
PLC status change log pointer points to the fourth PLC status change log when the
value in SR310 is 3.
The time when the PLC status change actions occur is recorded in SR311~SR390. The
corresponding functions of these data registers are as follows.
Action
Number
number
Year
SR312
1 SR311
High byte
SR316
2 SR315
High byte
SR320
3 SR319
High byte
SR324
4 SR323
High byte
SR328
5 SR327
High byte
SR332
6 SR331
High byte
SR336
7 SR335
High byte
SR340
8 SR339
High byte
SR344
9 SR343
High byte
SR348
10 SR347
High byte
SR352
11 SR351
High byte
SR356
12 SR355
High byte
SR360
13 SR359
High byte
SR364
14 SR363
High byte
SR368
15 SR367
2 - 8 6
PLC status change
*Time when the PLC status change action occurs
Month Day
SR312 SR313
Low byte High byte
SR316 SR317
Low byte High byte
SR320 SR321
Low byte High byte
SR324 SR325
Low byte High byte
SR328 SR329
Low byte High byte
SR332 SR333
Low byte High byte
SR336 SR337
Low byte High byte
SR340 SR341
Low byte High byte
SR344 SR345
Low byte High byte
SR348 SR349
Low byte High byte
SR352 SR353
Low byte High byte
SR356 SR357
Low byte High byte
SR360 SR361
Low byte High byte
SR364 SR365
Low byte High byte
SR368 SR369
Value
00~59
Number
Hour Minute
SR313 SR314
Low byte High byte
SR317 SR318
Low byte High byte
SR321 SR322
Low byte High byte
SR325 SR326
Low byte High byte
SR329 SR330
Low byte High byte
SR333 SR334
Low byte High byte
SR337 SR338
Low byte High byte
SR341 SR342
Low byte High byte
SR345 SR346
Low byte High byte
SR349 SR350
Low byte High byte
SR353 SR354
Low byte High byte
SR357 SR358
Low byte High byte
SR361 SR362
Low byte High byte
SR365 SR366
Low byte High byte
SR369 SR370
1
2
3
4
5
6
Second
SR314
Low byte
SR318
Low byte
SR322
Low byte
SR326
Low byte
SR330
Low byte
SR334
Low byte
SR338
Low byte
SR342
Low byte
SR346
Low byte
SR350
Low byte
SR354
Low byte
SR358
Low byte
SR362
Low byte
SR366
Low byte
SR370