Watlow's EZ-Zone™ RM integrated multi-loop controller family offers products that simplify thermal system management. The RM family is comprised of six module types: an integrated On/Off/PID control, monitoring and over/under temperature limit module (RMC), a high-density On/Off/PID control module (RMH), a high-density limit only module (RML), an input/output "I/O" expansion module (RME), a high-density monitor/scanner module (RMS) and a data logging and field communications access module (RMA). A system is configured by connecting any combination of module types to address specific application needs. The RM is extremely flexible and scalable allowing you to mix and match I/O to configure 1 to 152 control loops and up to 256 monitor points. Because the EZ-Zone RM controller is single-loop scalable, you only pay for what you need--leading to exact loop count and unmatched industry flexiblity.

Optional integrated controller functions that can be combined together or ordered in different quantities as desired include:

• PID Control Loops
• Over/under temperature limit control loops
• 10 or 15 ampere power output/heater driver options
• On-board data logging
• Current measurement input
• Sequencer start up and control function
• Programmable timer and counter functions
• Programmable math and logic options
• Multiple communication protocol options
• Mobile configuration with removable secure digital (SD) flash card

Features and Benefits

• Integrated & PID Limit Controller
  • Reduced wiring time and termination complexity compared to connecting discrete products
  • Improves system reliability
  • Reduces termination and installation costs
  • Eliminates compatibility issues often encountered with using many different discrete components and brands
  • Reduces troubleshooting time and downtime costs since the system can specifically identify to the operator any problems with a sensor, controller, solid state relay (SSR) power output or heater load
  • Thermal solution is complete--saving engineering time and labor costs while speeding up project times
• 1 to 152 PID Loop Controller or Monitor up to 256 Analog Inputs
  • Mix and match I/O to suit the application; from 1 input with 2 outputs to 152 analog inputs with 152 outputs. Or monitor up to as many as 256 analog inputs all in one system
  • Saves money because only needed loops are purchased
  • Allows a common controller platform across many design applications since both loop count and additional outputs can be ordered in increments of one
• Advanced PID Control Algorithm
  • Offers TRU-TUNE+ adaptive control to provide tighter control form demanding applications
  • Enables auto-tune for fast, efficient start up
• Communications Capabilities
  • Provides a wide range of protocol choices including Univeral Series Bus (USB) device port, Modbus RTU, Ethernet/IP™, Modbus TCP, DeviceNet™ and ProfiBus
• USB Port
  • Provides data log retrieval
• SPLIT-RAIL™ Control
  • Allows mounting of low voltage and high voltage modules in different cabinets with individual modules functioning together even if physically split apart
  • Minimizes the length and cost of wire runs and improves system reliability by accommodating inputs located closer to sensors and outputs closer to loads
• AUTO CLONE™
  • Saves time by reducing complexity and automatically configures 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

System Component Modules

• Control Module (RMC) - Temperature / Limit Suite
  • Populate 1 to 4 loops with 1 universal input and 1 to 2 outputs
  • Low voltage (24V ac/dc) power supply input
• High-Density Module (RMH) - Temperature Suite
  • Populate 4 to 16 loops with universal input and user-selectable output
  • Low voltage (24V to 28V ac/dc) power supply input
• High-Density Limit Module (RML) - Limit Suite
  • Populate 4 to 12 safety limits with universal input and user-selectable output
  • Low voltage (24V to 28V ac/dc) power supply input
• Expansion Module (RME) - Input / Output Suite
  • Low Density Outputs - Switch dc, open collector, mechanical relay, SSR, NO-ARC, analog V, analog mA
  • High Density Outputs - 6 digital inputs and outputs, 4 mechanical relays, two 10A SSRs
• High-Density Scanner Module (RMS) - Monitor Suite
  • Populate 4 to 16 universal inputs without control loops
  • Low voltage (24V to 28V ac/dc) power supply input
• Access Module (RMA) - Communications/Data Logging Suite
  • Communications
  • Real time clock and battery back-up
  • System configuration memory
  • USB port (mass storage device)
  • On-board data logging
• Basic Remote User Interface (RUI) - optional
  • 1/16 DIN, dual 4-digit display

Download the Watlow EZ-Zone™ RM Spec Sheet (pdf 468K)