Watlow RMA PLUS Operating Manual
RMA PLUS
User Guide
1241 Bundy Boulevard, Winona, Minnesota USA 55987
Phone: 1-507-454-5300 | Fax: 1-507-452-4507
http://www.watlow.com
Document #: 10-32813 Rev A; June 07, 2019
Table of Contents
Technical Support 5
Contacting Technical Support 5
3-Year Product Warranty 5
Returning a Product 5
Chapter 1 | About the RMA PLUS 6
Conceptual Overview 6
Specifications 6
RMA PLUS Safety Compliance 7
Ordering Part Numbers 8
Chapter 2 | Mounting and Wiring 9
Mounting (DIN Rail or Chassis) 9
Rail Mount 9
Chassis Mount 10
Wiring Power and Communications 10
Slot C Power and Communications 10
Low Power Input Requirements (same for all RM models) 10
Power and Communication Slots 11
Earth Ground for USBH and USBD Connectors 11
RMAPLUS Communications Options 12
RMAP-AAXX-XXXX: Standard Options Model 12
RMA PLUS with Communication Options RS-232/RS-485 13
System Wiring 14
Split Rail Power Needs 14
Chapter 3 | Getting Started 15
About the USB Drives 15
Installing Device Drivers 15
Accessing and Working with Files on the USBDrives 19
Chapter 4 | Configuration 22
Overview 22
Configuration File Formats 22
Configure Ethernet with Dashboard 23
Configuring RMA PLUS with CSV Creator 26
Overview 26
Initial Setup 26
General Usage of CSVCreator 27
Device Tree 27
Location Dropdown 27
File Type Dropdown 27
Drive Status Buttons 27
Saving Configuration Files 28
Configuring Modbus® Registers 28
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Selecting Parameters for Modbus® and Data Logging 28
Modbus® Default Register Addressing 29
Legacy Modbus® Register Addressing 30
System Configuration Settings 31
Data Log Configuration 31
HTTPs Web Server Configuration 32
Applying Configuration Changes to the RMA PLUS 32
Data Types for Configuration Files 32
Busses 33
Bus 0: Nothing 33
Bus 1: Inter-Module Bus 33
Bus 2: Standard Bus 33
Bus 4, 5: Modbus® RTU Master 33
Producer / Consumer Data 33
Chapter 5 | Features 36
USB Composite Device 36
Mini-B USBConnection for Fast Communication to RM Devices 36
Three Drives in Mass Storage Class 37
Data Logging 37
Ethernet 39
3-Port 10/100 Managed Ethernet Switch 39
Broadcast Storm Protection 39
Multicast Storm Protection 40
Port Mirroring 40
MAC Filter 40
Addressing 40
NetBIOS Name Service 40
Intermodule Bus Over Ethernet 40
Modbus® TCP Server 41
HTTP Server 42
Configuring Read Only Diagnostic Web Page 42
Token Format 45
TFTP Server 46
Notes 47
SNTP Client 47
Wireshark 47
Ethernet Members in RMAPLUS 47
Modbus® RTU 49
Testing Modbus® RTU Communications 50
Non-Volatile Memory 51
Standard Bus and Intermodule Bus Addressing 51
Address Segmentation 51
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Intermodule Bus 52
System Configuration File 53
Chapter 6 | Standard Objects Reference 55
Alarm 2 55
Calibration 56
Consumer Data 56
Device 58
LED 58
Real-Time Clock 61
Standard Bus and Intermodule Bus 62
Volume 62
Appendix 1 RMA PLUS Setup Keys Reference 64
Appendix 2 Declaration of Conformity 67
Appendix 3 List of RMA PLUS Figures 69
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Technical Support
Contacting Technical Support
If you encounter a problem with your Watlow controller, review the configuration of inputs, outputs, alarms, limits, etc. to
verify that the selections are consistent with your application. Often that’s all that is needed to resolve an issue.
If the problem persists, e-mail wintechsupport@watlow.com or call +1 (507) 494-5656 from 7am - 5pm Central Time and
ask for an Application Engineer. Please have the following information available:
l Complete model number
l All configurations
l User’s Guide
l Factory Page
3-Year Product Warranty
The RMA PLUS is warranted by Watlow for a period of 36 months in accordance with the terms and conditions set forth
on Watlow’s website, which may be accessed at www.watlow.com/terms.
Returning a Product
1. Obtain a Return Material Authorization (RMA) Number.
This RMA number is REQUIRED to return a product for any reason.
l If you do not know why the product failed, call +1 (507) 494-5656 to speak to an Application Engineer.
l After discerning the reason for the return, call Watlow Customer Service at +1 (507) 454-5300 for the RMA number.
l When you call, you must provide:
l Your P.O. number
l Ship-to address
l Bill-to address
l Detailed description of the problem
l Any special instructions
l Name and phone number of person returning the product
l Method of return shipment
2. Ship the Return
l Clearly indicate the RMA number on the outside of the carton and on all paperwork returned.
l Ship on a Freight Prepaid basis.
3. We will examine the returned product and RMA number to verify the reason for return.
l In cases of manufacturing defect, we will enter a repair order, replacement order or issue credit for material returned.
In cases of customer misuse, we will provide repair costs and request a purchase order to proceed with the repair
work.
l To return products that are not defective, goods must be in new condition, in the original boxes and they must be
returned within 120 days of receipt. A 20 percent restocking charge is applied for all returned stock controls and
accessories.
l If the unit cannot be repaired, you will receive a letter of explanation. and be given the option to have the unit returned
to you at your expense or to have us scrap the unit.
l Watlow reserves the right to charge for no trouble found (NTF) returns.
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Chapter 1 | About the RMA PLUS
The RMA PLUS is a remote access, high-speed communication gateway that provides access to all Watlow RM control modules in a system, using up to four busses via Ethernet, USB or serial.
RMA PLUS routes standard bus transactions over Ethernet and USB to all devices connected to the intermodule bus
network to allow for easy system configuration and monitoring. All units come standard with a built-in managed Ethernet
switch and two Ethernet jacks. RMA PLUS also connects to third-party and legacy devices, acting as a gateway
between Modbus® TCP and Modbus® RTU. Up to three Modbus® TCP sessions, three standard bus over Ethernet
sessions and one standard bus over USB session are available.
l Built-in Ethernet switch offers port mirroring for troubleshooting
l Built-in Ethernet switch protects from broadcast and multicast storms
l Integrated USB provides real-time communication to PC
l Modbus® TCP and Modbus® RTU allow you to build tables based on your unique needs and manage custom data sets
asynchronously to fieldbus activity
l Modbus® TCP and Modbus® RTU connect to third-party and legacy devices
Conceptual Overview
l On initialization, the RMA PLUS reads the file “nor:\Setup.csv” (from the included USBdrive) for feature configuration
and file paths.
l Gateway busses and enabled features (i.e. Modbus® TCP, Data Logging, etc) are instantiated.
l Delivery and transfer speeds for discovery are mere seconds.
l Gateway busses interact with target devices to read/write data points. RMA PLUS logs any data point in the system,
available as .csv files for easy access.Standard units are equipped to handle 16GB of data.
l Fieldbusses interact with gateway bus data sets, not directly with the target device.
Specifications
Feature Specification
EZ-ZONE Product Compatibility
Supply Voltage
Power
Ethernet Communication
Standard Communication
Additional Communication Options
USB
Real Time Clock with Battery
Backup
l Any Watlow product with high-speed or low-speed bus capabilities, i.e.:
l EZ-ZONE RM (C, E, H, L, S) version 9.0+ intermodule bus
l EZ-ZONE PM, RUI, ST standard bus
l EZ-ZONE RM (F, G, UH, Z) intermodule bus
l POWERGLIDE intermodule bus
l 24V
l 4W, 9VA
l 10/100 Ethernet with managed switch
l Ethernet
l USB
l Serial (‘C’ connector)
l Modbus® TCP over Ethernet
l Isolated EIA 232/485, Modbus® RTU
l USB 2.0 device
l Mini USB connector
l Composite device: vendor specific and mass storage classes
l Battery typical lifetime rating of 10 years
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Feature Specification
l Lithium battery
Data Logging
Memory Card
Gateway
Software Compatibility
l Maximum of 2000 data points
l Maximum of 500 unique data points per bus and zone
l File storage on embedded micro SD memory
l .CSV log files accessed via USB device port
l Micro SDHC (4-32GB)
l 4GB class 4 SDHC on standard models (operating temperature: -25 to 85C)
l 16GB class 10 SDHC on data log models (operating temperature: -40 to 85C)
l -4 to 185F (-20-85C) ambient rating, non-volatile memory
l All module parameters are backed up in memory
l Modbus® TCP to standard bus or intermodule bus
l Modbus® TCP to Modbus® RTU
l Modbus® RTU to standard bus or intermodule bus
l Modbus® RTU to Modbus® RTU
Via USB, Serial, or Ethernet
l Watlow Dashboard
l Watlow EZ-ZONE COMPOSER
l LabVIEW (by National Instruments)
Via Serial only
l Watlow EZ-ZONE Configurator
RMA PLUS Safety Compliance
Device has beenevaluatedto United States and Canadianrequirements for Process Control Equipment andlisted at Underwriters Laboratories® as
CCN: QUYX, QUYX7FileE185611to UL/EN 610101-1, CSA C22.2 #61010-1 andand recognized as CCN: QUYX2, QUYX8FileE185611UL/EN 61010-
1, CSA C22.2 #61010-1.
Device has beenevaluatedto United States and Canadianrequirements and listed at Underwriters Laboratories® as CCN: QUZW, QUZW7 File
E184390 to ANSI/ISA12.12.01, CSA C22.2 NO. 213-17 Class I, Division 2, Groups A, B, C, and D for Hazardous Locations. See:www.ul.com
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Ordering Part Numbers
Figure 1: RMA PLUS Configuration Codes for Ordering
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Chapter 2 | Mounting and Wiring
Mounting (DIN Rail or Chassis)
You can mount the RMA PLUS to a standard DINrail or mount to a panel with a #8 3/4" screw and torque to 10-15 in.-lb.
The RMA PLUS can be interconnected with other RM modules via the modular interconnection points on the back panel
of all EZ-ZONE units. See "Wiring Power and Communications" on the next page.
CAUTION: If you drop the product from 20” or higher when mounted on the X-axis, malfunction may
result.
Rail Mount
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Figure 2: Mounting Dimensions
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Chassis Mount
With no DIN rail, mount the removable backplane to a panel using a #8 3/4 screw, no washers of any kind, and torque to
10-15 lbs. This illustrates the backplane dimensions and screw position of three modules mounted side by side.
Figure 3: Back Plane Dimensions (illustrating 3 connected units)
Wiring Power and Communications
The RMA PLUS module can be installed as a stand-alone module or interconnected with other RM modules on the DIN
rail via the standard EZ-ZONE modular interconnection point.
Slot C Power and Communications
Slot C on the bottom rear of the device provides connections for power, standard bus, and inter-module bus communications.
Low Power Input Requirements (same for all RM models)
l 20.4 to 30.8 VAC ~(ac)/ m (dc) 14VA
l 47 to 63Hz
l Controller module power consumption: 7 watts maximum
l 31 Watts maximum power for power supply part # 0847-0299-0000
l 60 Watts maximum power for power supply part # 0847-0300-0000
l 91 Watts maximum power for power supply part # 0847-0301-0000
l Class 2 or safety extra low voltage (SELV) power source required to comply with UL® standards
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Power and Communication Slots
Slot Terminal Function Configuration Power In
98, 99
Power input AC or DC+ Only needed on one module; shared on back-
plane
CF, CD,CEStandard bus EIA-485 Com-
mon
Standard bus EIA-485 T-/R-(A)
Standard bus EIA-485 T+/T+
(B)
CZ, CX, CY Intermodule bus Wire for split-rail configurations
EIA-485 connection for EZ-ZONE
CONFIGURATOR
Earth Ground for USBH and USBD Connectors
The USB Host and USB D connector bodies are grounded to earth using the wire trap on the bottom of the case. To
ground the connectors, insert a ground wire into the trap from the case bottom. Use 18 – 26 AWG Solid or Stranded,
Trim Length 3.5 ± 0.5mm (0.138 ± .02”). This earth ground is not connected to the power.
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Figure 4: Ground Wire Connection Point
RMAPLUS Communications Options
RMAP-AAXX-XXXX: Standard Options Model
RMAP-AAXX-XXXX: stand-alone RMA PLUS in slot A/D is the basic model with Ethernet, USBonly. You can use
either or both Ethernet jacks simultaneously for any downstream or upstream.
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Figure 5: RMAP-Axxx-xxxx Models
RMA PLUS with Communication Options RS-232/RS-485
RMAP-2XXX-XXXX: models include current communication options: RS-232 / RS-485 module in slot B/E. Note that
the 6 and 7 Ethernet ports are separate, so you need to specify the port when configuring Modbus® RTU.
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Figure 6: RMAP-2XXX-XXXX
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System Wiring
The RMA PLUS module can be interconnected with other RM modules on the DIN rail via the standard EZ-ZONE modular interconnection point on the backplane, which is a standard feature on every device in the EZ-ZONE RM family.
You may run power and communications for the entire system of connected RM devices through the RMA PLUS.
Figure 7: Interconnection Point
Ground Wire Connection Point
Split Rail Power Needs
You may have a single power supply designated for two separate DIN rails with interconnected RM modules. When
designing your hardware layout for a split rail system, consider the available power supply and the loading effect of all
modules used.
Watlow provides three options for power supplies:
l 90-264VAC to 24VDC @ 31 watts (Part #: 0847- 0299-0000)
l 90-264VAC to 24VDC @ 60 watts (Part #: 0847- 0300-0000)
l 90-264VAC to 24VDC @ 91 watts (Part #: 0847- 0301-0000)
Note the maximum power for each individual module of 7 watts/14VA, and consider the total of all combined units when
planning power to your split rail system:
l RMCxxxxxxxxxxxx @ 7 watts / 14VA
l RMEx-xxxx-xxxx @ 7 watts / 14VA
l RMHx-xxxx-xxxx @ 7 watts / 14VA
l RMLx-xxxx-xxxx @ 7 watts / 14VA
l RMSx-xxxx-xxxx @ 7 watts / 14VA
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Chapter 3 | Getting Started
About the USB Drives
Files necessary for configuration, operations, and data logging are loaded onto three drives on your RMA PLUS. The
specific contents of these files vary per model number and features purchased, but all RMAPLUS devices contain
these three drives:
l NOR Flash drive – to configure internal settings of the RMA
l Micro SD drive – user data i.e. data logs and supporting utilities
l RAM Disk drive – dynamic data for system confirmation, i.e. network status
You may connect your RMAPLUS to your PC with a mini-B USBcable and access the files on these drives to configure your RMA PLUS only after you install the USBDrivers. (If you have previously installed Watlow USB drivers
using COMPOSER, you do not need to reinstall the drivers).
Installing Device Drivers
You must install Watlow USB device drivers before using the Micro SD, NORFLASH, and RAM Disk drives included
with your RMA PLUS. (If you already use a Watlow RM product and have Watlow USB drivers installed, you do not
need to reinstall the drivers and may proceed to Configuration).
1. Connect your PC to the mini USB Device connector on the RMA PLUS. Windows will attempt to install the drivers,
but the RMA PLUS device driver will not be found.
2. Open My Computer (Windows key + ‘E’) and look under the “Devices and Drives” group. With your RMA PLUS connected via the USB cable, you should see its three drives listed. In this image, the drives are labeled with letters E, D,
and F, but your computer may have different letters for the drives.
If the drives do not appear, check the "View" settings of Windows Explorer. Click the View tab of Windows
Explorer, then make sure "Hidden Items" is checked, and/or uncheck "Hide empty drives in the com-
puter folder" (if using Windows 7) or uncheck "Hide empty drives" (if using Windows 10).
Figure 8: Drives Not Mounted to PC, Viewed in Windows Explorer
3. Right-click each drive and select the “Eject” option. "Eject" is used to mount and unmount the drives from the PC.
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NOTE: There is an issue with certain versions of Windows 10 OS where you cannot eject one drive
without the other drives being affected. If you notice thishappening, use the CSV Creator tool to mount
and unmount the drives. You'll be using CSV Creator to configure the drives, and it has mount/unmount
buttons for each of the drives in it.
Figure 9: Use the Eject menu option to mount a drive to the PC
When the drive is mounted to the PC, you'll see the name of the drive recognized, and the PC will have exclusive control of the drives. In the image below, all three drives have been "ejected" or mounted to the PC. You can now see the
drive names for each: MICRO SD; NOR FLASH; and RAM DISK.
Figure 10: Drives Mounted to PC, Viewed in Windows Explorer
l Note: If your computer is set up to automatically open the drive to view the directories on the drive, you may close it.
It is not necessary at this time to view any files on the drives
4. After you have mounted all three drives, from your computer’s start menu, open the Device Manager.
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5. Right-click “RMA PLUS” under “Other devices” and then select Update Driver Software.
Figure 11: Update Driver Software via Windows Device Manager
6. Select “Browse my computer for driver software”.
Figure 12: Choose "Browse my computer for driver software."
7. Browse to the drive labeled “MICRO SD” and press the “OK” button
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Figure 13: Browse to the MICROSD drive
8. Ensure “Include subfolders” is checked and press the “Next” button.
l Note that the full path to the driver in this example is “E:\Software\S19 Flashloader\USB Drivers”.
9. Select “Install."
Figure 14: Press the Install button
The following is displayed upon successfully installing the driver.
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Figure 15: Device Driver Install Success Message
10. Return to Windows Explorer, select the drive, right-click, and select “Eject” to unmount the drive from the PC. This
returns exclusive control of the drive to the firmware.
Repeat the above steps for each drive on the RMA PLUS.
Accessing and Working with Files on the USBDrives
1. Connect the Mini-B USB cable to the RMA PLUS.
2. Open My Computer (Windows key + ‘E’) and look under the “Devices and Drives” group. The remov-
able drives are shown here. Note that the drive letter and order may vary by computer.
3. Right-clickeach drive and select Eject to give your PC exclusive access to the drives. This sends a
start/stop command to the device. When the PC mounts a drive, all firmware services that use that
drive are suspended.
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Figure 16: Windows Devices View: All Drives Mounted to the PC
NOTE: There is an issue with some versions of Windows 10 OS where you cannot eject one drive
without the other drives being affected. If you notice thishappening, use the CSV Creator tool to
mount and unmount the drives. You'll be using CSV Creator to configure the drives, and it has
mount/unmount buttons for each of the drives in it.
l Do not disconnect the USBcable without first ejecting or unmounting the drives via CSVCreator. If the USB
cable is disconnected, the RMA PLUS will regain access to the drives after a several second timeout, but
removing the USB cable while the drives are mounted on the PC could result in corruption.
l When a drive is mounted to your PC, the PC has exclusive access to that drive. All firmware features that
require the drive are suspended. The default drive state is ejected (unmounted) to prevent unintentional suspension of firmware services.
l Changes made to a drive take effect after the RMA PLUS regains full control of the drive.
l LEDs on the unit change to indicate the drive state. GREEN = RMA PLUS has access to the drive.
ORANGE = RMA PLUS has access, and a USB cable is connected. RED = RMA PLUS has no access to
the drive because it is mounted to the PC via the USB port.
4. After you finish working with a drive, close all files and folders and press “Eject ” to unmount the drive from the
PC. When all drives are unmounted, you may safely remove the USB cable.
l Note that the drive names are no longer displayed on your Explorer window, and the LEDs change from
orange to green about five seconds after the cable is removed.
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Figure 17: Eject the Drives to Unmount from PC
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