ZM-71SE About version 1.2.1.0 - Soliton

Use FP-ROM area as backup data(ZM80 function) (corresponds to page 2-23)
The remaining area in the screen data FP-ROM (flash memory) can be used for PLC
memory, internal memory, or memory card for data backup. A maximum of 16k words is
usable as the data backup area.
* The capacity of the display data will be reduced by 128kbytes.
Setting procedure
Choose [Others] from [System Setting]. The [Other Settings] dialog is displayed. In the
[P3] tab window, check [Use Internal Flash ROM as Back-up Area].
Data backup procedure
Data can be written to the FP-ROM at one time by macro command [FROM_WR].
For reading backup data from the FP-ROM, use the macro command [FROM_RD].
[FROM_WR]
The number of words (maximum 16K words) specified for F1 are written from the F0
memory to the FP-ROM.
Usable devices
Internal memory PLC memory Constant Memory card Indirect set Word
F0
F1
FROM_WR : Writing to FROM FROM_WR F0
F1
[FROM_RD]
The number of words (maximum 16K words) specified for F1 are read from the FP-ROM
to the F0 memory.
Usable devices
Internal memory PLC memory Constant Memory card Indirect set Word
F0
F1
FROM_RD : Read to FROM FROM_RD F0 F1
1. It will be possible to write to the FP-ROM one hundred thousand times.
(One execution of [FROM_WR] is counted as one time, irrespective of the
specified number of words.)
It is recommended that backup data be read at power-on and be written
before power-down.
2. About 3 to 5 seconds will be necessary for writing to the FP-ROM.
3.Do not execute [FROM_WR] or [FROM_RD] in every cycle using cycle
macro, etc.
4.When reading the words by [FROM_RD] more than the words written by
[FROM_WR], the [FROM_RD] is not executed.
The value [-1] is written to $s728 (refer to the next section.)
About system memory (s)
The following system memory ($s) is related to the use of the FP-ROM as the data backup
area.
- Address s728
A result by the execution of [FROM_WR] or [FROM_RD] is written to this address.
[0]: Normal [-1]: Abnormal