User`s manual

Note: Parameters appear in the Operations Page only if activated from the Programming Page. See page 22 for Operations Page defaults.
Note: Some values will be rounded off to fit in the four-character display. Full values can be read with Modbus. All temperature parame-
ters are in °F through Modbus.
* Low register numbers contain the two higher bytes; high register numbers contain the two lower bytes of the four-byte integer. Decimal
precision is implied at three decimal places unless otherwise noted.
Watlow Series SD ■ 35 ■ Chapter 6 Operations
Display Parameter Name
Description
Settings Range
(Integer values for Modbus
in parentheses.)
Default Modbus*
(less 40,001
offset)
Read/Write
Appears if:
Operations Parameters Table
6
These parameters can be selected to appear in the Operations Page. Select parameters to appear in the Operations
Page in the Programming Page. Press the Advance Key ‰ to enter the Operations Page and to step through the pa-
rameters. For Profiling controller, set [Prog] to [~~no] to access the Operations Page. Press the Infinity Key ˆ to
return to the Home Page at any time.
Note: The Operations Page is not accessible when a profile is running.
[Po;ht]
[Po.ht]
Power Heat
Displays the current heat control power.
0.0 to 100.0% power
(000 to 10000)
(Two decimal places implied
for Modbus.)
NA
256 R
[A-M] is set to [auto]
and at least one output
is set to [hEAt].
[Po;CL]
[Po.CL]
Power Cool
Displays the current cool control power.
0.0 to 100.0% power
(000 to 10000)
(Two decimal places implied
for Modbus.)
NA
257 R
[A-M] is set to [auto]
and at least one output
is set to [Cool].
[A-m]
[A-M]
Auto-Manual Mode
Set the control mode.
[auto] (0)
[Man] (1)
[auto] (0)
25 R/W
Always appears.
[`Aut]
[ Aut]
Autotune
Start an autotune.
[`OFF] off (0)
[``On] on (1)
[`OFF] (0)
215 R/W
At least one output is
set to [hEAt] or
[Cool].
[`Cal]
[ CAL]
Calibration Offset
Offset the input reading.
-999 to 999
(-999000 to 999000)
0.0
*85, 86
R/W
Always appears.
[ht;m]
[ht.M]
Heat Control Method
Set the heat control method.
[`OFF] off (0)
[`PID] PID (1)
[on;of] on-off (2)
[`PID] (1)
213 R/W
At least one output is
set to [hEAt].
[Pb;ht]
[Pb.ht]
Proportional Band Heat
Set the proportional band for the heat
outputs.
1 to 999°F, if [`Sen] is set
to [``tc] or [`rtd]
(1000 to 999000)
0.000 to 999 units, if [`Sen]
is set to [`mA] or [uolt].
(0000 to 999000)
25
25
*216, 217
R/W
*220, 221
R/W
At least one output is
set to [hEAt] and
[ht;m] is set to
[`PId].
[rE;ht]
[rE.ht]
Reset Heat
Set the PID reset in repeats per minute
for the heat outputs.
0.00 to 99.99 repeats per
minute
(0000 to 99990)
0.00: disabled
0.00
*224, 225
R/W
(Modbus
value is in-
tegral,
which is
the inverse
of reset.)
At least one output is
set to [hEAt], [ht;m]
is set to [`PId], and
[Unit] is set to [``US].
[It;ht]
[It.ht]
Integral Heat
Set the PID integral in minutes per re-
peat for the heat outputs.
0.00 to 99.99 minutes/per
repeat
(0000 to 99990)
0.00: disabled
0.00
*224, 225
R/W
At least one output is
set to [hEAt], [ht;m]
is set to [`PId], and
[Unit] is set to [``SI].