User`s manual

Watlow EZ-ZONE™ Communications • 72 • Chapter 2 Mobbus RTU & TCPWatlow EZ-ZONE™ Communications • 72 • Chapter 7 Setup Page
Parameter name
Description
Modbus
(less
40,001 off-
set)
read/write
CIP
class
instance
attribute
Range Default Data
Type
EZ-ZONE™
PM Int.*
EZ-ZONE™
PM PID*
EZ-ZONE™
PM Limt*
Limit
Hysteresis
Set the hysteresis for the limit function. This
determines how far into the safe range the
process value must move before the limit
turns the output back on.
682 r/w 112
1
2 r/w
0.001 to 9,999.0 3.0 floating
point
XX
Limit
Integrate
In a limit state the controller will turn off
the outputs, terminate an active profile and
freeze PID and TRU-TUNE+™ calculations.
694 r/w 112
1
8 r/w
No (59)
Yes (106)
No integer X
Loop Menu
Loop
Heat Algorithm
Set the heat control method.
1884 r/w 151
1
3 r/w
PID (71)
Off (62)
On-Off (64)
PID integer
XX
Loop
Cool Algorithm
Set the cool control method.
1886 r/w 151
1
4 r/w
Off (62)
PID (71)
On-Off (64)
Off integer X X
Loop
Cool Output Curve
Select a special cool output curve to change
the responsiveness of the system.
1888 r/w 151
1
5 r/w
Off (62)
Curve A (214)
Curve 2 (215)
Off integer
XX
Loop
TRU-TUNE+™ Enable
Enable or disable the TRU-TUNE+™ adap-
tive tuning feature.
1910 r/w 151
1
16 r/w
No (59)
Yes (106)
No integert
XX
Loop
TRU-TUNE+™ Band
Set the range, centered on the set point,
within which TRU-TUNE+™ will be in ef-
fect. Use this function only if the controller
is unable to adaptive tune automatically.
1912 r/w 151
1
17 r/w
0 Auto
1 to 1,000
0 integer X X
Loop
TRU-TUNE+™ Gain
Select the responsiveness of the TRU-
TUNE+™ adaptive tuning calculations. More
responsiveness may increase overshoot.
1914 r/w 151
1
18 r/w
1 to 6 Most to least respon-
sive
3 integer X X
Loop
Autotune Aggressiveness
Select the aggressiveness of the autotuning
calculations.
1916 r/w 151
1
19 r/w
Critical damped (21)
Under damped (99)
Over damped (69)
Critical integer X X
Integers are unsigned, 16-bit values. Floating point values are IEEE 754 32-bit floating point values.
The default Modbus order is Low Word-High Word. The order can be changed in the Communications Menu.
The default serial data format is: 9,600 baud; 8 data bits; no parity; 1 stop bit.
NOTE: Avoid continuous writes within loops. Excessive writes to the EEPROM will cause premature EEPROM failure. The EEPROM is
rated for 1,000,000 writes.
Underlined parameters are not accessable using a remote user's interface (RUI) or the controller's front panel. They can only be ac-
cessed using communications.
*Some of the parameters are not functional in some configurations of each model. Check the user's manual for information.
Int.
PID
Lmt.