User`s manual
Watlow EZ-ZONE™ Communications • 79 • Chapter 2 Mobbus RTU & TCPWatlow EZ-ZONE™ Communications • 79 • 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*
Output 4 (digital)
Control
Set the output control type. This parameter
is only used with PID control, but can be set
anytime.
972 r/w 106
4
2 r/w
Fixed Time Base (34)
Variable Time Base (103)
Fixed
Time
Base
integer X
Output 4 (digital)
Time Base
Set the time base for fixed-time-base control.
974 r/w 106
4
3 r/w
0.1 to 60.0 seconds (solid-
state relay or switched dc)
5.0 to 60.0 seconds (mechani-
cal relay or no-arc power
control)
0.1 sec.
[SSR &
sw dc]
20.0 sec.
[mech,
relay,
no-arc]
integer X
Output 4 (digital)
Low Power Scale
The power output will never be less than the
value specified and will represent the value
at which output scaling begins.
986 r/w 106
4
9 r/w
0.0 to 100.0% 0.0% floating
point
X
Output 4 (digital)
High Power Scale
The power output will never be greater than
the value specified and will represent the
value at which output scaling stops.
988 r/w 106
4
10 r/w
0.0 to 100.0% 100.0% floating
point
X
Output 4 (digital)
Power
Monitor the power being supplied to this
output.
984 r 106
4
8 r
0.0 to 100.0% floating
point
XX
Alarm Menu
Alarm 1 Submenu
Alarm 1
Type
Select how the alarm will or will not track
the set point.
1508 r/w 109
1
15 r/w
Off (62)
Process Alarm (76)
Deviation Alarm (24)
Off integer X X X
Alarm 1
Source
Select what will trigger this alarm.
1512 r/w 109
1
17 r/w
Analog Input (142)
Power (73) (process only)
Current (22) (process only)
Analog
Input
integer X X X
Alarm 1
Source Instance
If Alarm Source is set to input, select which
input to use.
1514 r/w 109
1
18 r/w
1 or 2 1 integer X
Alarm 1
Hysteresis
Set the hysteresis for an alarm. This deter-
mines how far into the safe region the pro-
cess value needs to move before the alarm
can be cleared.
1484 r/w 109
1
3 r/w
0.001 to 9,999.000 1.0 floating
point
XXX
Alarm 1
Logic
Select what the output condition will be dur-
ing the alarm state.
1488 r/w 109
1
5 r/w
Close On Alarm (17)
Open On Alarm (66)
Close On
Alarm
integer X 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.










