Latch Data Backup To Standard Rom - Mitsubishi Electric Q01UCPU User Manual

3.29

Latch Data Backup to Standard ROM

This function holds (backs up) latch data, such as device data and error history, to the standard ROM without using a
battery when the system is stopped for a long period. This function helps to extend battery life.
Remark
When a CPU module other than the High-speed Universal model QCPU executes this function, the battery life-prolonging
function is enabled regardless of its parameter setting. The function is disabled after backup data are restored.
The status of the function can be checked in SD119 (Battery life-prolonging factor).
For details of the battery life-prolonging function, refer to Page 247, Section 3.26.
(1) Backup target data and file size
The following table lists backup target data and sizes of files where data are stored.
Backup target data
• File register (R, ZR)
• Extended data register (D)
Device data
• Extended link register (W)
• Internal user device (M, L, B, F, V, T, ST, C, D, W)
• Index register (Z)/standard device register (Z)
Error history
Module error collection file (stored in the system memory)
File transfer error history
SFC program continuation start information
Sampling trace information
Scan time measurement information
*4, *5
Standard RAM system data
*4, *5
Standard RAM directory data
Trace setting (Sampling trace file)
Module error collection file (stored in the standard RAM)
*1
*1
*1
*3
*6
File size (byte)
64 + 2 × Number of file register points
File sizes differ depending on the CPU module used.
CPU module Serial No. (first 5 digits)
11042 or earlier
Q00UJCPU, Q00UCPU,
Q01UCPU
11042 or earlier
Q02UCPU
11042 or earlier
QnUD(H)CPU,
QnUDE(H)CPU
17011 or earlier
17012 to 17102
Q03UDVCPU
17011 or earlier
17012 to 17102
Q04UDVCPU,
Q06UDVCPU
17011 or earlier
17012 to 17102
Q13UDVCPU,
Q26UDVCPU
4
14212
16 + Sampling trace file size
92 + 64 × Maximum number of module errors
CHAPTER 3 FUNCTIONS
*7
File size (byte)
87210
11043 or later 89790
87210
11043 or later 93630
110890
11043 or later 117310
124952
132582
17103 or later 132608
18052 or later 132634
144152
151782
17103 or later 151808
18052 or later 151834
184728
192358
17103 or later 192384
18052 or later 192410
251
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