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4. CPU MODULE
4.2 Parameter Setting Ranges
Parameter contents in the CPU modules and parameter setting ranges are explained
below.
4.2.1 List of parameter setting range
Parameters are used for allocating the user memory area inside the CPU module, setting
various functions and device ranges.
A parameter is usually stored in the first 3k bytes of the user memory area.
Even though a default value can be used, parameter value can be changed to a value
suitable for a particular application within a setting range by the peripheral devices.
List of parameter setting range
Item Default Value
Setting Range
A1SJHCPU(S8) A1SHCPU A2SHCPU(S1)
Main sequence program capacity 6k steps
1 to 8k steps
(1k step = in 2k-byte units)
1 to 8k steps
(1k step = in 2k-byte units)
1 to 14k steps
(1k step = in 2k-byte units)
Microcomputer program capacity –
0 to 14k bytes
(in units of 2k bytes)
0 to 14 bytes
(in units of 2k bytes)
0 to 26k bytes
(in units of 2k bytes)
File register capacity – 0 to 8k points (1k point = in 2k-byte units)
Comment capacity –
0 to 3648 points (64 points unit = in 1k byte units)
[When comment capacity is set up, 1k byte is added to the memory area.]
Expanded comment capacity – 0 to 3968 points (64 points unit = in 1k byte units)
Status latch
Memory capacity
–
0/8 to 16k bytes
Data memory No/Yes
File register No/Yes (2 to 8k bytes)
Sampling
trace
Memory capacity
–
0/8k byte(s)
Device setting Device No.
Executing
condition
For each scan
For each period
Number of
sampling times
0 to 1024 times
(in units of 129 times)
Latch range
setting
(power failure
compensation)
Link relay (B)
• Latch: only
L1000 to
L2047
• None for
others.
B0 to B3FF (in units of 1 point)
Timer (T) T0 to T255 (in units of 1 point)
Counter (C) C0 to C255 (in units of 1 point)
Data register (D) D0 to D1023 (in units of 1 point)
Link register (W) W0 to W3FF (in units of 1 point)
Settings for internal relay (M),
latch relay (L), step relay (S)
M0 to M999
L1000 to L2047
None for S
M/L/S0 to M/L/S2047
(where M, L, S are serial numbers)
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