1.2 Explanation of Relays
1-27
Non−hold type relay and hold type relay
There are two types of internal relays: hold type relays and non−hold type relays. When
the power is turned off or the mode changed from RUN to PROG.,
− Hold type relays hold their on or off status and resume operation in that status
when the system is restarted.
− Non−hold type relays reset.
For the FP0 C10/C14/C16/C32, and FP−e without clock/calendar function, non−hold
type and hold type relay numbers are as follows:
Item Non-hold type Hold type
FP0 C10, C14, C16
FP−e
R0 to R60F (976 points) R610 to R62F (32 points)
FP0 C32 R0 to R54F (880 points) R550 to R62F (128 points)
For the FP0 T32C/FP0R/FPΣ/FP−X/FP2/FP2SH/FP10SH, and FP−e with clock/
calendar function, system register 7 can be used to specify whether a hold type or a
non−hold type is used. If the beginning of a hold type relay is specified using a word
number, relays before that point will be non−hold types, and subsequent relays will
be hold types.
Value of system register 7
(initial number of hold type)
Non-hold
type
Hold type
Default settings for hold types and non−hold types
Type Non−hold type Hold type
FP10SH/FP2SH R0 to R499F (8000 points) R5000 to R886F (6192 points)
FP2 R0 to R199F (3200 points) R2000 to R252F (848 points)
FP0 T32C R0 to R9F (160 points) R100 to R62F (848 points)
FPΣ R0 to R89F (1440 points) R900 to R97F (128 points)
FP−e R0 to R60F (976 points) R610 to R62F (32 points)
FP−X/FP0R R0 to R247F (3968 points) R2480 to R255F (128 points)
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.
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