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3. The decimal point position is designated by the “decimal point position” pa-
rameter.
4. Does not apply when Alarm Mode = 0.
5. Writing is not possible during operation (i.e., when RUN is ON).
6. Only when the output relay “MAN” bit is 1.
7. When writing to the EEPROM with the set point command “00”, set the
SW203-3 to OFF.
RAM Write Commands
Parameter
Com-
mand
Write
Read
Loop
no.
Bank
no.
Actual data
range
SV data
range
Default value
Set point (see note 3)
4
0
Yes
No
Yes
Yes
Scaling lower limit to scaling
upper limit
0 EU
Execution bank number
4
2
Yes
No
Yes
No
1 to 8
0001 to
0008
1
Alarm SV 1 (see notes
3, 4)
4
3
Yes
No
Yes
Yes
Alarm mode
1, 4, 5:
0 to 9999
0000 to
9999
0 EU
Alarm SV 2 (see notes
3, 4)
4
4
Yes
No
Yes
Yes
0 to 9999
Other:
–999 to 9999
9999
F999 to
9999
0 EU
Input shift value (see
note 3)
4
5
Yes
No
Yes
Yes
–999 to 9999
F999 to
9999
0 EU
Proportional band (see
note 1)
4
6
Yes
No
Yes
Yes
0.0 to 999.9
0000 to
9999
10.0 %FS
Integral (reset) time
(see note 1)
4
7
Yes
No
Yes
Yes
0 to 9999 s
240 s
Derivative (rate) time
(see note 1)
4
8
Yes
No
Yes
Yes
0 to 9999 s
40 s
Decimal point position
5
2
Yes
No
Yes
No
0 to 3
0000 to
0003
1
Scaling lower limit
5
3
Yes
No
Yes
No
-999 to (scaling upper limit
value – 1 digit)
0
Scaling upper limit
5
4
Yes
No
Yes
No
(Scaling lower limit + 1 digit)
to 9999
100.0
Control period (see note
1)
5
7
Yes
No
Yes
No
1 to 99 s
0001 to
0099
20 s
Hysteresis (see note 2)
5
8
Yes
No
Yes
Yes
0.0 to 100.0
0000 to
1000
0.2 %FS
Alarm hysteresis (see
note 4)
5
9
Yes
No
Yes
No
0.0 to 100.0
0000 to
1000
0.1 %FS
Digital filter
5
E
Yes
No
Yes
No
0 to 100
0000 to
0100
0 s
Alarm 1 mode
6
4
Yes
No
Yes
No
0 to 9
0000 to
0009
2
Alarm 2 mode
6
5
0009
Yes:
Possible.
No:
Not possible or not required.
Note
1. Only when advanced PID control is selected. (Switch 203-1 = OFF)
2. Only when ON/OFF control is selected. (Switch 203-1 = ON)
3. The decimal point position is designated by the “decimal point position” pa-
rameter.
4. Does not apply when Alarm Mode = 0.
5. RAM write commands write data only to the RAM regardless of the setting of
the Switch 203-3 (SP write mode).
6. Any data written using RAM write commands is deleted when the power is
turned OFF.
Memory Allocation