User guide
Watlow EZ-ZONE
®
 RMH Module  • 42 •  Chapter 3 Operations Page
  RM High Density Module  •  Operations Page
Display
Parameter Name
Description
Range Default
Modbus 
Relative 
Address
CIP
Class 
Instance
Attribute
hex (dec)
Probus 
Index
Parameter
ID
Data 
Type 
& Read/
Write
[`C;SP]
[ C.SP]
Control Loop (1 to 16)
Closed Loop Set Point
Set the set point that the 
controller will automati-
cally control to.
Low Set Point to High Set 
Point (Setup Page)
75.0°F 
or 
units
24.0°C
5220 
[offset 80]
0x6B 
(107)
1 to 16
1
39 7001 float
RWES
[`id;S]
[ id.S]
Control Loop (1 to 16)
Idle Set Point
Set a closed loop set point 
that can be triggered by 
an event state.
Low Set Point to High Set 
Point (Setup Page)
75.0°F 
or 
units
24.0°C
5236 
[offset 80]
0x6B 
(107)
1 to 16
9
40 7009 float
RWES
[`h;Pb]
[ h.Pb]
Control Loop (1 to 16)
Heat Proportional Band
Set the PID proportional 
band for the heat outputs.
0.001 to 9,999.000°F or 
units
0.001 to 5,555.000°C
25.0°F 
or 
units
14.0°C
4110 
[offset 70]
0x97 
(151)
1 to 16
6
55 8009 float
RWES
[`h;hy]
[ h.hy]
Control Loop (1 to 16)
Heat Hysteresis 
Set the control switching 
hysteresis for on-off con-
trol. This determines how 
far into the “on” region 
the process value needs 
to move before the output 
turns on.
0.001 to 9,999.000°F or 
units
0.001 to 5,555.000°C
3.0°F or 
units
2.0°C
4120 
[offset 70]
0x97 
(151)
1 to 16
0xB (11)
56 8010 float
RWES
[`C;Pb]
[ C.Pb]
Control Loop (1 to 16)
Cool Proportional Band
Set the PID proportional 
band for the cool outputs.
0.001 to 9,999.000°F or 
units
0.001 to 5,555.000°C
25.0°F 
or 
units
14.0°C
4112 
[offset 70]
0x97 
(151)
1 to 16
7
57 8012 float
RWES
[`C;hy]
[ C.hy]
Control Loop (1 to 16)
Cool Hysteresis 
Set the control switching 
hysteresis for on-off con-
trol. This determines how 
far into the “on” region 
the process value needs 
to move before the output 
turns on.
0.001 to 9,999.000°F or 
units
0.001 to 5,555.000°C
3.0°F or 
units
2.0°C
4122 
[offset 70]
0x97 
(151)
1 to 16
0xC (12)
58 8013 float
RWES
[``ti]
[ ti]
Control Loop (1 to 16)
Time Integral
Set the PID integral for 
the outputs.
0 to 9,999 seconds per 
repeat
180 sec-
onds 
per 
repeat
4114 
[offset 70]
0x97 
(151)
1 to 16
8
59 8006 float
RWES
[``td]
[ td]
Control Loop (1 to 16)
Time Derivative
Set the PID derivative 
time for the outputs.
0 to 9,999 seconds 0 seconds 4116 
[offset 70]
0x97 
(151)
1 to 16
9
60 8007 float
RWES
[``dB]
[ db]
Control Loop (1 to 16)
Dead Band
Set the offset to the 
proportional band. With 
a negative value, both 
heating and cooling out-
puts are active when the 
process value is near the 
set point. A positive value 
keeps heating and cooling 
outputs from fighting each 
other.
-1,000.0 to 1,000.0°F or 
units
-555.556 to 555.556°C
0.0 4118 
[offset 70]
0x97 
(151)
1 to 16
0xA (10)
61 8008 float
RWES
Note: Some values will be rounded off to fit in the four-character display. Full values 
can be read with other interfaces.
If there is only one instance of a menu, no submenus will appear.
R: Read 
W: Write 
E: EEPROM 
S: User Set










