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Watlow Series SD PID Profiling Controller User Manual

Page 36

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Wa t l o w S e r i e s S D

3 4

C h a p t e r 5 S e t u p

Display

Parameter Name

Description

Settings

Range

(Integer values for Modbus in

parenthesis.)

Default

Modbus*

(less 40,001

offset)

Read/Write

Appears if:

[rP;Sc]
[rP.Sc]

Ramp Scale**
Select the scale of the ramp rate.

[hour] degrees/hour (0)
[Min] degrees/minute (1)

[hour] (0)

267 R/W

[``rP] is set to [`Str]
or

[``On].

[rP;rt]
[rP.rt]

Ramp Rate**
Set the rate for the set point
ramp.

0 to 9999 (0000 to

9999000)

100

*268, 269

R/W

[``rP] is set to [`Str]
or

[``On]. Does not ap-

pear if

[``rP] is set to

[`OFF].

[Ptyp]
[PtyP]

Profile Type***

Set the profile ramp to time
based or rate based.

{~~ti] Time based ramp

(0)

{rate] Rate based ramp

(1)

{~~ti] (0)

354 R/W

Profiling version only.
(SD_ R - _ _ _ _ - _ _ _ _ )

[PStr]
[PStr]

Profile Start***

Select where the profile begins
the starting set point of the pro-
file, current static set point or
current process temperature.

[`Set] Static Set Point

(0)

[~Pro] Process (1)

[`Set] (0)

355 R/W

Profiling version only.
(SD_ R - _ _ _ _ - _ _ _ _ )

[gS;dE]
[gS.dE]

Guaranteed Soak Deviation
Enable***

Enables the guaranteed soak de-
viation function in profiles.

[`~no] Disabled (0)
[~YES] Enabled (1)

[~~no] (0)

356 R/W

Profiling version only.
(SD_ R - _ _ _ _ - _ _ _ _ )

[`GSd]
[ gSd]

Guaranteed Soak Deviation
Value***

Set the value of deviation al-
lowed by the guaranteed soak
deviation function.

1 to 999 (1000 to 999000)

1

*357, 358

R/W

Profiling version only.
(SD_ R - _ _ _ _ - _ _
_ _ )

[GSdE} is set to

[~YES].

[Addr]
[Addr]

Modbus Device Address

Set the device address for com-
munications. Every controller on
a network must have a unique
address.

1 to 247

1

This can
only be set
from the
control-
ler front
panel.

Output 2 is a communi-
cations output. (SD_ _ - _
_ U _ - _ _ _ _ )

[bAud]
[bAud]

Baud Rate

Set the baud rate at which the
communications occurs.

[9600]
[`19;2]
[`38;4]

[9600]

This can
only be set
from the
control-
ler front
panel.

Output 2 is a communi-
cations output. (SD_ _ - _
_ U _ - _ _ _ _ )

[t;tun]
[t.tun]

TRU-TUNE+™ Enable

Enable or disable the TRU
TUNE+ adaptive tuning fea-
ture.

[``no] No (0)
[`yES] Yes (1)

[`yES]

350

rw

TRU-TUNE+ version
only. (SD_ E - _ _ _ _ - _
_ _ _ )

[AgrS]
[AgrS]

Autotune Aggressiveness

Select the aggressiveness of
the autotuning calculations.
(This does not affect the TRU-
TUNE+ function.)

[Undr] Under (0)
[Crit] Critical (1)
[OuEr] Over (2)

[Undr]

Under [0]

351

rw

[t;bnd]
[t.bnd]

Tune Band

Set the range, centered on the
set point, within which TRU-
TUNE+ will be in effect. Use
this function only if the controller
is unable to adaptive tune auto-
matically.

0 Auto

1 to 999 Degrees or Units

0 Auto

353

rw

TRU-TUNE+ version
only. (SD_ E - _ _ _ _ - _
_ _ _ )

Note: Some values will be rounded off to fit in the four-character display. Full values can be read with Modbus. All temperature pa-
rameters through Modbus are in °F, by default. Writing to register 18 will toggle between °F and °C.

* 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.

** Static set point version only (SD_C-_ _ _ _- _ _ _ _ ).

*** Profiling version only (SD_R-_ _ _ _- _ _ _ _ ).

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