Watlow Series SD Limit - Manual (Page 33)

Wa t l o w S e r i e s S D L i m i t
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31
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C h a p t e r 6 O p e r a t i o n s
Display Parameter Name
Description
Settings Range
(Integer values for Modbus
in parentheses.)
Default Modbus*
(less 40,001
offset)
Read/Write
Appears if:
Note: Parameters appear in the Operations Page only if activated from the Programming Page.
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.
[A3;hi]
[A3.hi]
Alarm 3 High
Set the high alarm set point for Output
3.
Process: range of sensor, if
[`SEN] is set to [``tc] or
[`rtd]
-1999 to 9999 if [`SEN] is
set to [`Ma], [uolt], or
[`Mu].
(-1999000 to 9999000)
1500 *134, 135
R/W If [Ot~3] is set to
[Pr;AL]
hyS1]
[hyS1] Limit 1 Hysteresis
Set the hysteresis for the limit. This de-
termines how far into the safe region the
input needs to move before the limit can
be cleared. This also appears in the Set-
up Page.
0.0 to 999.0
(0000 to 999000) 1.0 *106, 107
R/W Always active.
[hyS2]
[hyS2] Output 2 Hysteresis
Set the hysteresis for the alarm or limit
output. This determines how far into the
safe region the input needs to move be-
fore the output can be cleared.
0.0 to 999.0
(0000 to 999000) 1.0 *121, 122
R/W [Ot`2] is set to [Pr;;AL]
or
[LIM].
[hyS3]
[hyS3] Output 3 Hysteresis
Set the hysteresis for the alarm or limit
output. This determines how far into the
safe region the input needs to move be-
fore the output can be cleared.
0.0 to 999.0
(0000 to 999000) 1.0 *136, 137
R/W [Ot`3] is set to [Pr;;;AL]
or
[LIM].
[Addr]
[Addr] Modbus Device Address
Set the device address for communica-
tions. Every controller on a network
must have a unique address.
1 to 247 1 This can
only be set
from the
controller
front
panel. Output 2 is a commu-
nications output.
SD_ _ - _ _ U _ - _ _ _ _
[`C-F]
[ C-F] Temperature Units
Set the temperature units for thermocou-
ple and RTD inputs.
[```F] Fahrenheit (0)
[```C] Celsius (1) [```F] (0) 40 R/W [`Sen] is set to [``tc]
or [`rtd].
[`Cal]
[ CAL]
Calibration Offset
Offset the input reading.
-999 to 999
(-999000 to 999000) 0 *85, 86
R/W Always appears.