Panasonic FP-E Programming Manual page 62

Relays, Memory Areas and Constants
Even if specifying for the unit without batteries, the data will be indefinite.
Value of system register 6
(initial number of hold type)
Default settings for hold types and non−hold types
Type
FP2SH/FP10SH
FP2
FPΣ, FP−X, FP0R
FP−e
FP0 T32C
Note
For FP0R, FPΣ, FP−X and FP−e, in case of not using back−up
battery, please keep the default value. Otherwise we cannot
guarantee the function of hold/non−hold value.
*1 Use the following methods for holding the SV data:
For the FP2/FP2SH/FP10SH, contacts of timers and counters specified as hold types,
as well as setting value areas and elapsed value areas, are cleared to 0 when the
Initialize/Test switch is set to the upper side (the Initialize side).
Note
With the FP2SH/FP10SH, system register 4 can be set in such a
way that the counter contact is not cleared even if the
Initialize/Test switch is set to the upper side.
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Non-hold
type
Hold type
Non−hold type
0 to 2999 (3000 points)
0 to 999 (1000 points)
0 to 1007 (1008 points)
0 to 139 (140 points)
*1
SV: non−hold
0 to 99 (100 points)
− Set the transfer instruction for the data register (DT) to
hold the data. Then, perform the setting so that the data
can be transferred from DT to SV after the RUN mode
starts.
− Use the FP−e model with a battery.
Hold type
3000 to 3071 (72 points)
1000 to 1023 (24 points)
1008 to 1023 (16 points)
140 to 143 (4 points)
SV: hold
100 to 143 (44 points)