Panasonic FP-M Hardware, Manual

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189
8-5. System Registers
2. Table of the System Registers
Address
0
4
5
6
Name of system register
Program capacity
Operation without backup
battery
Counter instruction
starting address
Hold area starting
address settings for
timer/counter area
Default
value
K3 or
K5
K0
K100
K100
Description
The program capacity is automatically specified according
to the type of the programmable controllers.
FP-M 2.7 k type (2,720 steps): K3
,
FP-M 5 k type (5,000 steps): K5
The value in this system register is fixed.
This register specifies the operation of the FP-M when the
voltage of the backup battery lowers or when the backup
battery disconnects.
K0: the conditions above are regarded as errors
K1: the conditions above are not regarded as errors
Starting number for counter instructions is specified.
• Setting range
K0 to K144
• Setting the same value as system register 6 is
recommended.
• If the maximum value of the setting range is input, all of
the areas are used as timers.
EXAMPLE:
If system register 5 is set to K120:
- Timers:
- Counters:
Hold area starting address for timer/counter is specified.
• Setting range
K0 to K144
• Setting the same value as system register 5 is
recommended.
• If the maximum value of the setting range is input, all of
the areas are used as non-hold areas.
EXAMPLE:
If system register 6 is set to K120:
- Non-hold area:
- Hold area:
T0 to T119 (120 timers)
C120 to C143 (24 counters)
0 to 119
120 to 143