Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual page 433

■Configuration of start history
Information on starts is stored in the start history of pointer 0 to 15. The following figure shows the configuration of the start
history.
Pointer number
3
2
1
Pointer number 0
[Md.3]
1212
Start information
[Md.4]
1213
Start No.
[Md.50]
1440
Start Year: Month
[Md.5]
1214
Start Date: Time
[Md.6]
1215
Start Minutes: Seconds
[Md.7]
1216
Error detection
Buffer memory
Item
address
When the number of the start history exceeds 15, the newer start information is stored from pointer 0 again and the previous
start information is overwritten.
[Md.8]
1292
Start history pointer
This area stores the next pointer number after the
pointer number assigned to the most recent start
history record.
9
8
7
6
5
4
1247
1242
1237
1232
1227
1222
1217
1248
1243
1238
1233
1228
1223
1218
1447
1446
1445
1444
1443
1442
1441
1249
1244
1239
1234
1229
1224
1219
1250
1245
1240
1235
1230
1225
1220
1251
1246
1241
1236
1231
1226
1221
• Pointer numbers are assigned to each chunk of buffer memory that
configures one start history.
Ex.) Pointer number 0 = Buffer memory 1212 - 1216, 1440
Pointer number 1 = Buffer memory 1217 - 1221, 1441
Pointer number 2 = Buffer memory 1222 - 1226, 1442
Pointer number 15 = Buffer memory 1287 - 1291, 1455
• History records are stored using pointer numbers labeled "0 -15".
The sequence repeats once the maximum number of history
records is reached, and so the 17th history is stored using
pointer number "0".
The old history record is overwritten by the new record.
15
14
13
12
11
10
1282
1277
1272
1267
1262
1257
1252
1283
1278
1273
1268
1263
1258
1253
1454
1453
1452
1451
1450
1449
1448
1284
1279
1274
1269
1264
1259
1254
1285
1280
1275
1270
1265
1260
1255
1286
1281
1276
1271
1266
1261
1256
•
•
•
17 DATA USED FOR POSITIONING CONTROL
1287
1288
1455
1289
1290
1291
17.7 Monitor Data
17
431