Watlow Series SD Limit User Manual
Page 28

Wa t l o w S e r i e s S D L i m i t
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26
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C h a p t e r 5 S e t u p
Display
Parameter Name
Description
Settings
Range
(Integer values for Modbus
in parentheses.)
Default
Modbus*
(less 40,001
offset)
Read/Write
Appears if:
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.
Output 1 Function
Set Output 1 function.
[LIM] Limit (2)
[LIM] (2)
143 R
Always active.
Output 1 Limit Sides
Selects Output 1 limit active sides.
[both] (0) (both high and
low sides active)
[high] (1) (high side ac-
tive)
[low] (2) (low side active)
[Ftr;E] is not set to
[`OFF].
[both] (0)
111 R/W
Always active.
Limit 1 Hysteresis
Set the hysteresis for the limit. This deter-
mines how far into the safe region the in-
put needs to move before the limit can be
cleared.
0.0 to 999.0
(0000 to 999000)
1.0
*106, 107
R/W
Always active.
Output 2 Function
Set Output 2 function.
[`OFF] Off (0)
[Pr;;AL] Process Alarm (1)
[LIM] Limit (2)
[`OFF] (0)
164 R/W
Output 2 is installed
and is not a communica-
tions output.
0.0 to 60.0 seconds
(0000 to 60000)
Set Point High Limit
Set the high range for the set point.
[rg;Lo] to max. operating
range (of sensor): if
{`sen}
is set to
{``tc}
[SP;Lo] +0.100 to 1472: if
{`sen} is set to {`rtd}
[SP;Lo] +0.001 to 9999: if
{`sen} is set to [`MA],
[uolt], or {`Mu].
(Set precision with
[P;dEC],
Process Decimal Places)
Max. operat-
ing range (J
type):
{``tc}
1472:
{`rtd]
999:
[`MA],
[uolt], and
[`Mu].
*233, 234
R/W (ther-
mocouple)
*237, 238
R/W (RTD)
*241, 242
R/W (mA
or V)
Always active.
Calibration Offset
Offset the input reading.
-999 to 999
(-999000 to 999000)
0
[sP;hi]
[SP.hi]
Filter Value
Set the input filter value.
0.0
*87, 88
R/W
*85, 86
R/W
Always appears.
Input Filter
Select filtering action.
[`OFF] (0) (no filtering)
[DiSP] (1) (filter only the
display value)
[Cont] (2) (filter the
control input values)
[both] (3) (filter the
display and control input
values)
[`OFF] (0)
89 R/W
Always active.
[Ot`1]
[Ot 1]
[Lsd1]
[LSd1]
[hyS1]
[hyS1]
[Ot`2]
[ Ot2]
[`Cal]
[ CAL]
[FLtr]
[FLtr]
[Ftr;E]
[Ftr.E]
[Lsd2]
[LSd2]
Output 2 Limit Sides
Selects Output 2 limit
[both] (0) (both high and
low sides active)
[high] (1) (high side active)
[low] (2) (low side active)
[both] (0)
126 R/W
[Ot`2] is set to [LIM].
0.0 to 999.0
(0000 to 999000)
Output 2 Hysteresis
Set the hysteresis for the output. This de-
termines how far into the safe region the
input needs to move before the output
can be cleared.
1.0
*121, 122
R/W
[Ot`2] is set to [Pr;;AL]
or
[LIM].
[hyS2]
[hyS2]
Output 2 Logic
Select the output condition in the alarm
state.
[AL`C] closed on alarm (0)
[AL`O] open on alarm (1)
[AL`C] (0)
169 R/W
[Ot`2] is set to [Pr;;AL].
[Lgc2]
[Lgc2]