Leviton ModHopper User manual

DI-007-R9120-00A
ModHopper®- Wireless Modbus/Pulse Transceiver
Cat. No. R9120
Installation and Operation Manual
WEB VERSION

WEB VERSION

TABLE OF CONTENTS
1 Product Application Limitation ............................................................................4
2 Features and Specifications ................................................................................5
3 Overview and Installation Checklist ....................................................................6
3.1 Overview............................................................................................................6
3.2 Installation Checklist ..........................................................................................6
3.3 Model Information ..............................................................................................6
4 Hardware Installation ............................................................................................7
5 Configuration.........................................................................................................8
6 Modbus Registers ...............................................................................................13
6.1 Supported Modbus Functions..........................................................................13
6.2 Modbus Register List .......................................................................................13
7 Mechanical Drawings..........................................................................................16
8 Warranty and Contact Information......................................................................17
WEB VERSION

• Leviton products are not intended for use in critical applications such as nuclear facilities, human
implantable devices or life support. Leviton is not liable, in whole or in part, for any claims or damages
arising from such uses.
• Leviton strongly believes in continuous improvement, therefore we must reserve the right to change
specifications and product offerings without notice. Where possible, we will substitute products with
equivalent functionality when necessary.
NOTICE
This product is not intended for life safety applications.
Do not install this product in hazardous or classified locations.
The installer is responsible for conformance to all applicable codes.
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1 PRODUCT APPLICATION LIMITATION
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5
2 FEATURES AND SPECIFICATIONS
The ModHopper wireless Modbus/pulse transceiver is designed to allow systems integrators the ability to communicate
with remote locations while avoiding the costs associated with running low voltage wiring to multiple locations in a single
or between multiple buildings. To meet these requirements, the ModHopperTM provides the installer with all the tools
necessary to install and configure the hardware and software with a minimum of time and investment.
Applications
The R9120 wireless Modbus/pulse transceiver has several applications. These include:
• Energy monitoring.
• Solar PV power generation monitoring.
• Malls, office buildings, and other tenant energy monitoring applications.
Processor 60MHz Arm7 embedded CPU
LED 3 x RF, 2 x RS485, 2 x pulse, Alive, Alarm
Protocols Modbus RTU
Addressing Modbus address may be set from 1 to 247 via DIP switch. Included Class 2
Power Supply1,3 Power supply requires 100-240VAC, 50/60Hz 0.5A
(power supply not included in models with -T option)
Inputs22 pulse inputs, dry contact
Monitor consumption/rate/min/max
Pulse rate/width user selectable to 10Hz, 50Hz, 100Hz, or 250Hz.
Pulse rate option: 10Hz, minimum pulse width 50ms
Pulse rate option: 50Hz, minimum pulse width 10ms
Pulse rate option: 100Hz, minimum pulse width 5ms
Pulse rate option: 250Hz, minimum pulse width 2ms
Contact closure threshold 100Ωto 2.5kΩuser selectable
Pulse count values are stored in non-volatile memory
Communications1RS485 (+,-, S), 9600/19200 baud, N, 8, 1, two wire.
Supports up to 32 external devices per ModHopper. (expandable)
RF Frequency hopping, ISM band, see table below.
North America: Temperature 0o– 50o c3, 0 – 95% humidity, non-condensing.
Environmental2Pollution Degree 2, altitude up to 2000M.
For indoor and outdoor use when used in an appropriate enclosure.
The R9120 must be mounted inside a NEMA rated electrical enclosure for safety and isolation
requirements when used outdoors.
EMC FCC (USA): Part 15.247, Class A
IC (Canada): RSS-210
Size 6.5” x 4.5” x 2.0” (260mm x 64mm x 45mm)
Mass 1.25 lbs (0.67 kg)
1Inputs are intended for low voltage Class 2 or inputs or outputs.
2if the product is used in a manner not specified by the manufacture, the protection provided by the equipment may be
impaired.
3Not intended for use with rechargeable batteries
Product specific features: R9120-5 (extended range)
FCC ID OUR-9XTEND or MCQ-XBPSX
IC (Industry Canada) 4214A-9XTEND or 1846A-XBPSX
Encryption 256 bit AES
Max Range (indoor/urban) 3000ft
RF: 900MHz, 1000mW
Power Input39-30VDC, 900mA
WEB VERSION

3 OVERVIEW AND INSTALLATION CHECKLIST
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3.1 Installation Checklist
A ModHopper system installation has the following components:
Required hardware
• Two or more ModHopper R9120 transceivers.
External Hardware
• RS485 Modbus master system such as an A8812 EMH™ or a Modbus compatible PLC.
• Optional: RS485/Modbus slave devices such as power meters or IO modules.
• Optional: Pulse output transducers for measuring gas, electricity, water, etc. from existing meters and
sensors. Make sure to obtain the pulse output scale, or multiplier for each device you will
be using.
• Low voltage wire for attaching pulse or Modbus devices to the R9120, typically 18-24 gauge
3.2 Model Information
Before proceeding with the installation, verify the hardware is Rev C. It is important to use
the correct manual that matches the hardware being installed.
As per SIPCO LLC, this product may be used in a system and employ or practice certain
features and/or methods of one or more of the following patents:
SIPCO, LLC
This product is covered by U.S. Patent No’s: Patent No. 7,103,511, Patent No. 6,914,893,
Patent No. 6,891,838, Patent No. 5,714,931, Patent No. 6,233,327, Patent No. 7,397,907, Patent No. 6,618,578,
Patent No. 7,079,810, Patent No. 7,295,128, Patent No. 7,263,073, Patent No. 7,480,501, Patent No. 6,437,692,
Patent No. 7,468,661, Patent No. 7,053,767, Patent No. 7,650,425, Patent No. 7,739,378
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4 HARDWARE INSTALLATION
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4.1 Hardware Installation
WARNING: TO AVOID DEATH OR INJURY, after wiring the ModHopper, remove all scraps of wire or foil
shield from the electrical panel. This could be dangerous if wire scraps come into contact with high
voltage wires.
4.1.1 Unpack materials; Remove all materials from shipping box and verify all required components
are present.
4.1.2 Mount the ModHopper to a wall or inside the electrical enclosure if required. When mounting the ModHopper
and the antenna inside an enclosure, a non-metallic enclosure will be required. Metal enclosures restrict RF
communications. If a metal enclosure is required, use an external antenna and an RF antenna cable.
4.1.3 Connect the pulse output devices. For KYZ pulse output meters, attach the normally-open circuit to the
ModHopper. These are usually the K and Z terminals.
4.1.4 Connect the RS485 Modbus network loop as shown in the wiring diagram. Follow the manufacturer’s
instructions for installing and powering other Modbus devices. Verify that the Modbus address settings are
unique for each device (i.e., no two devices with the same address). Connect each device in the chain by
“daisy-chaining” the devices together. Observe + and - polarity on the Modbus devices. For more information
about Modbus loops, please read our Modbus FAQ available at www.Leviton.com.
Do not ground the RS485 shield inside an electrical panel. All RS485 and 24VDC power wires,
including the shield should be insulated to prevent accidental contact to high voltage conductors.
The pulse, RS485 and power cable should be mechanically secured where it enters
the electrical panel.
The wire used to provide pulse and RS485 communications should be insulated to meet the requirements of
the voltages present whatever box in which the wire is mounted. For example, BeldenTM 1120A has a 600V
insulation rating and can be used in many applications. Check with your electrical installer for details as local
code requirements may vary.
4.1.5 Attach the antenna to the ModHopper. When using an antenna cable, avoid sharp bends; kinks in the
antenna cable will degrade performance.
4.1.6 Attach the power to the ModHopper and apply power. Observe the LEDs to confirm the device is operating.
• Alive (green): blinks once per second while the system is operating correctly.
• RS485 RX: The RX led should blink whenever a modbus query is sent on the RS485 loop. (regardless of
the target address of the query). If the ModHopper is attached to an EMH, the RX led should blink about
once per second.
• RS485 TX: The TX LED will blink when the R9120 responds to a modbus query.
Note: If cleaning is required, use a dry towel to remove dust from the ModHopper.
CAUTION: Do not use fluids to clean the ModHopper.
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5 CONFIGURATION
5.1 Modbus Address
Before the ModHopper can be used, you must set the Modbus address of
the ModHopper. This address must be unique among all Modbus devices in
the system including all devices that are connected on remote wireless links.
Address 0 (all switches off) is not allowed.
Select an address, and set the DIP switches to match.
The sum of the value of the switches is the address. In the example to the
right, address 52 is set by placing switch 4, 16 and 32 to the on position.
Note: 4 + 16 + 32 = 52
5.2 System Setting
For most systems, set all of the system switches to the “off” position.
Radio channel: This option selects the channel number that can be used to
isolate a group of ModHoppers. This option may be set for channels 0 to 6.
Channel 7 (all 3 switches on) is not allowed.
Programming: Set the “Prog Enable” to Off for normal operation.
485 Termination Enable: Set the “485 Term En” to ON to enable a 120 ohm
termination resistor on the RS485 network. This should be used when the
ModHopper is on the end of a 485 wiring run. Set this switch to OFF when the
ModHopper is in the middle of an RS485 wiring run.
Port RS232 or RS485: Set the switch to the “off” position for RS485 operation.
The ModHopper can communicate via the RS232 connection however most
Modbus devices will need 485 terminals.
Baud Rate: This option sets the serial port speed for the Modbus devices connected to the ModHopper.
Set this option to “off” for 19200. Set the switch to “on” for 9600 baud.
Reserved: Set this option to Off.
5.3 Status LEDs
The device should power up and be ready in a few seconds. The LEDs should
blink in the following manner.
• The “Alive” LED should start to blink about once per second.
• The Alarm LED will blink when transmission errors occur.
• The RF TX/RX LEDs will blink when the radio is receiving
or transmitting data.
• The RS485 LEDs will blink for local Modbus activity.
• The Pulse input LEDs will light when the corresponding pulse input
terminals are closed.
• If the device has the -SN option, the 400MHz LED will blink when an RF
packet from a 400MHz sensor transmitter is received.
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9
5 CONFIGURATION
5.4 Signal Strength Test
When the ModHopper is operating, the Test Button can be used to report the signal strength received by the
ModHopper from another unit.
Press and hold down the test button. The status LEDs will light up as a bar graph display. Each LED is
approximately 10% of scale. For example if PULSE 1 and 2 are on, the received strength is approximately
20% to 29%.
For useful signal reporting, it is important to turn off all but one other ModHopper. When reporting the signal
strength, the most recent wireless transmission received is displayed. If two ModHoppers are transmitting,
the display will only show the most recently received packet, and the user will not be able to determine which
ModHopper the signal strength being reported.
Note: the normal operation of the ModHopper is suspended while the test button is pressed.
Modbus communications and wireless transmissions are not processed.
5.5 Monitoring usage
The ModHopper has several data points that may be read using the Modbus protocol.
For each of the two pulse inputs, the ModHopper reports a value for consumption and rate. Rate fields are
provided for the average rate during the log period (block demand), the instantaneous rate, and the min/max
instantaneous rate observed during the log period. The pulse counts for each input are stored in
non-volatile memory to preserve the count when power is removed. For more information on the specific
Modbus registers used for the pulse inputs, refer to the Modbus register section of this manual.
When configuring a Modbus Master such as a PLC, TCP Gateway, or computer software, you must increase
the timeout on the RS485 port of your system. The ModHopper adds about 500mS of delay per hop. In a
complex system with multiple ModHoppers, a 1 to 2 second round trip time is not uncommon.
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5 CONFIGURATION
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5.6 EMH Data Display Page
When using the ModHopper with the EMH data acquisition server, the EMH will read the pulse input data from
the ModHopper and provide configuration menus for all of the ModHopper options.
The EMH will display will report all the data values present on the ModHopper. In addition, the instantaneous
min/max rate values will be cleared after each logging interval. Click the Configure button to set up pulse input
names, unit of measure and multipliers as needed.
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