EZ-ZONE® Controller Family
Watlow's EZ-ZONE® controllers decrease design and assembly time, require less panel space, minimize system complexity and best of all, lower the total cost of ownership. Because these products are modular and scalable, you only pay for what you need. You can order the EZ-ZONEs in multiple configurations giving you the flexibility to standardize on the product platform to solve your wide range of application needs.
EZ-ZONE features include RoHS compliance by design, TRU-TUNE®+ adaptive control and a variety of industrial communication protocols including EIA 485, EIA 232, EtherNet/IP™ and Modbus® TCP.
EZ-ZONE® RM Multi-Loop Controller
Watlow's EZ-ZONE RM integrated controller has a range of 1 to 16 modules controlling 1 to 64 loops. View this video to see how the EZ-ZONE RM can be used as a temperature controller, limit controller or hybrid controller.
* RUI/Gateway required for EZ-ZONE ST EtherNet™ connection
EZ-ZONE RM: Integrated controller allows common controller platform across many applications and functions
| 1 to 64 PID loop controller |
- Saves money because only needed loops are purchased
|
| Advanced PID control algorithm |
- Offers TRU-TUNE+ adaptive control to provide tighter control for demanding applications
|
| Current monitoring for entire system |
- Detects condition of up to 18 individual outputs and loads through the use of three current transformer inputs
|
| Communication capabilities |
- Provides a range of protocol choices including Modbus® RTU, Ethernet/IP™, Modbus® TCP and DeviceNet™
|
| SPLIT-RAIL™ control |
- Allows mounting of high and low voltage modules in different cabinets with individual components functioning together even if physically split apart
|
| AUTO CLONE™ |
- Saves time by reducing complexity and automatically configuring a new module with the same parameter settings as the replaced module
|
| SENSOR GUARD™ |
- Prevents customer system shutdown and product scrap or loss by allowing a sensor to be chosen to backup another sensor in case of primary sensor failure
|

EZ-ZONE PM: Discrete PID controller AND over/under temperature limit
| Features |
Benefits |
| Integrated PID and limit controller |
- Reduces wiring time and termination complexity
|
| High amperage power controller output |
- Drives 15-ampere resistive loads direct and reduces component count
|
| Current monitoring |
- Detects heater current flow and provides alarm indication of a failed output device or heater load
|
| Serial communication capabilities |
- Provides a range of protocol choices including Modbus® RTU, Ethernet/IP™, Modbus® TCP and DeviceNet™
|
| Remote set point operation |
- Supports efficient set point manipulation from a remote device such as a master controller or PLC
|
EZ-ZONE PM Express: Easy-to-use discrete PID controller AND over/under temperature limit
| Features |
Benefits |
| Simplified menu |
- Fits basic applications with a user-friendly interface supported by two menus and a streamlined list of parameters
|
| PID auto-tune |
- Provides auto-tune for fast, efficient start-up
|
| Standard bus communications |
- Allows easy product configuration via PC communications protocol and free software
|
| Factory Mutual (FM) approved over and under limit with auxiliary outputs |
- Increases user and equipment safety for over- and under-temperature conditions
|
| Removable front panel |
- Saves time and labor with replacements and troubleshooting
|
EZ-ZONE ST: PID controller with solid state relay output and profiling capability
| Features |
Benefits |
| Profile capabilities |
- Includes ramp and soak with four files and 40 total steps
|
| Solid state relay output |
- Allows faster cycling, more precise control, increased heater life and energy efficiency
|
| PID temperature control |
- Allows single input/dual output
- Allows standard PID or advanced PID tuning algorithms
|
| EZ-ZONE ST with optional EIA 485 Modbus® RTU |
- Allows communications with PLC, PC or HMI
|
| EZKB (RUI) with optional EIA 232/485 Modubus® RTU, EtherNet/IP™, Modbus® TCP or DeviceNet™ |
- Allows communications with PLC, PC or HMI
|
| Back panel or DIN-rail mount |
- Provides several mounting options
|
| Advanced controllability algorithms |
- Offers TRU-TUNE+ for meeting demanding controllability requirements
|
Modbus® is trademark of AEG Schneider Corporation.
EtherNet/IP™ and DeviceNet™ are trademarks of Open DeviceNet Vendors Association
Featured Articles
Watlow is regularly featured in popular industry trade publications. Below is a selection of recent articles or product features about Watlow. Please click on a link below to view each story.
Related Literature, News and Downloads
Click on the below links for more product information. PDF documents require Adobe®
Reader®
version 7 or higher for viewing.
| Related Technical Documents |
Size/Pages |
| Document EZ-ZONE PM settings in Excel Spreadsheet |
146K / 0
|
| EZ-ZONE Configurator Software Download |
25,255K / 0
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| EZ-ZONE Family DeviceNet EDS File |
24K / 2
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| EZ-ZONE PM & RM DeviceNet Card Firmware Update to Version 3.00 |
146K / 0
|
| EZ-ZONE PM & RM Ethernet Card Firmware Update to Version 4.00 |
181K / 0
|
| EZ-ZONE PM Comms Wiring using B&B 485USBTB-2W converter |
475K / 1
(PDF)
|
| EZ-ZONE PM Comms Wiring using B&B USPTL4 converter |
449K / 1
(PDF)
|
| EZ-ZONE PM Comms Wiring using Serial Gear converter |
706K / 1
(PDF)
|
| EZ-ZONE PM Controller Communications Manual Rev B Nov.2007 |
1,262K / 136
(PDF)
|
| EZ-ZONE PM Controller Modbus register list in Excel |
544K / 0
|
| EZ-ZONE PM Default Implicit Assembly |
712K / 4
|
| EZ-ZONE PM Express (PID) Revision C - English |
1,200K / 2
(PDF)
|
| EZ-ZONE PM Firmware Update to Version 9.00 |
368K / 0
|
| EZ-ZONE PM Integrated Controller User Manual Rev H |
9,878K / 138
(PDF)
|
| EZ-ZONE PM Limit User Manual Rev H |
7,519K / 85
(PDF)
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| EZ-ZONE PM PID User Manual Rev H |
7,204K / 104
(PDF)
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| EZ-ZONE PM Power Off Time Parameter Usage |
45K / 1
(PDF)
|
| EZ-ZONE RM Comms Wiring using B&B 485USBTB-2W converter |
93K / 1
(PDF)
|
| EZ-ZONE RM Comms Wiring using Serial Gear converter |
408K / 1
(PDF)
|
| EZ-ZONE RM Default Implicit Assembly |
712K / 4
|
| EZ-ZONE RM Firmware Update to Version 2.00 |
479K / 0
|
| EZ-ZONE RM Firmware Update to Version 3.00 |
722K / 0
|
| EZ-ZONE RM Firmware Update to Version 4.00 |
426K / 0
|
| EZ-ZONE RM Module connectiivity examples |
1,439K / 7
(PDF)
|
| EZ-ZONE RM System User Manual Rev B. 10/08/2009 |
15,975K / 458
(PDF)
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| EZ-ZONE RUI Firmware Update to Version 5.00 |
129K / 0
|
| EZ-ZONE RUI/Gateway User Manual Rev. B |
4,315K / 50
(PDF)
|
| EZ-ZONE ST Comms Wiring using B&B 485SD9TB converter |
401K / 1
(PDF)
|
| EZ-ZONE ST Comms Wiring using Serial Gear converter |
375K / 1
(PDF)
|
| EZ-ZONE ST Firmware Update to Version 2.00 |
159K / 0
|
| EZ-ZONE ST User Manual Rev E 10/2007 |
2,380K / 98
(PDF)
|
| EZ-ZONE Standard Bus VI in LabVIEW ver 8.5 |
116K / 0
|
| Modbus RTU program for EZ-ZONE PM, RM and ST |
72K / 0
|
| Profibus GSD Editor for EZ-ZONE Products |
1,129K / 0
(EXE)
|
| RUI/Gateway & Modbus® RTU Configuration & Programming Examples Using an Allen-Bradley ... |
174K / 12
(PDF)
|
| RUI/Gateway DeviceNet Configuration & Programming Using Allen-Bradley PLC |
316K / 21
(PDF)
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| RUI/Gateway EtherNet/IP Configuration & Programming Using Allen-Bradley PLC |
157K / 12
(PDF)
|
| RUI/Gateway Modbus TCP Configuration & Programming Using KEPServerEX |
328K / 20
(PDF)
|
| SCCR - Short Circuit Current Rating for Watlow Power Controls |
60K / 7
(PDF)
|
| Sample EZ-ZONE PM 32-bit Modbus Packet |
36K / 3
(PDF)
|
| Sample Modbus Communications Modules for Programmers |
283K / 0
|
| Silver Series EZ-ZONE PM Sample Project, Rev C |
49K / 0
|
| Silver Series EZ-ZONE RM Sample Project, Rev C |
49K / 0
|
| Silver Series EZ-ZONE ST Sample Project, Rev C |
49K / 0
|
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