Monnit Serial MODBUS Quick Start Manual

Monnit wireless sensors serial modbus (rtu/ascii) gateway
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View the full user's guide at www.monnit.com/smg-guide.
Information to Users
his equipment has been tested and found to comply with the limits for a Class B digital devices,
T
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one of more of the following
measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
WARNING:
Changes or modifications not expressly approved by Monnit could void the user's
authority to operate the equipment.
RF EXPOSURE WARNING:
devices, a separation distance of 20 cm or more should be maintained between the antenna of this
device and persons during device operation. To ensure compliance, operations at closer than this
distance are not recommended. The antenna used for this transmitter must not be co-located in
conjunction with any other antenna or transmitter.
Inside the Box
You should find the following items in the box:
• Monnit Serial MODBUS Gateway
• Antenna
• Monnit Wireless Sensors
• Batteries
• Mounting Hardware
• Users Guide
Some setup is required before the system will begin working. Please follow the instructions in this
guide to correctly setup your system.
Monnit Wireless Sensors
(RTU/ASCII) Gateway
To satisfy FCC RF exposure requirements for mobile transmitting
- 1 -
Serial MODBUS

Quick Start Guide

For Version 3.0

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Summary of Contents for Monnit Serial MODBUS

  • Page 1: Quick Start Guide

    • Consult the dealer or an experienced radio/TV technician for help. WARNING: Changes or modifications not expressly approved by Monnit could void the user’s authority to operate the equipment. To satisfy FCC RF exposure requirements for mobile transmitting RF EXPOSURE WARNING: devices, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during device operation.
  • Page 2  NEMA 4X / IP65 Rated Enclosure  RP SMA Antenna Connector (Antenna Included) Example Network Integration Monnit wireless sensors integrate with existing MODBUS systems allowing for additional environmental variables to be monitored. Monnit Serial MODBUS Gateway Quick Start 1. Attach Hardware 2.
  • Page 3: Connecting The Serial Modbus Gateway Hardware

    1. Connecting The Serial MODBUS Gateway Hardware 1. Connect Antenna 2. Use communication select jumper to set RS-485 or RS-232C 3. Connect wires from MODBUS to SCADA / PLC / Master SMG 5-Wire Connector Red: 4.5 – 36 VDC Black:...
  • Page 4: Serial Modbus Gateway Indicator Lights

    Connecting the Serial MODBUS Gateway to the USB Programming Dongle: 2. Serial MODBUS Gateway Indicator Lights System - Indicates gateway status. A green light indicates ready and working, a red light indicates there is a hardware problem. Wired - Indicates connectivity with MODBUS system.
  • Page 5 Poll the Gateway ID registers @ 1-2 / 40002-40003 addresses and verify the number returned matches the Gateway ID on the bottom of your serial MODBUS gateway (four or five digit number near the bar code). If the device times-out or gives some other error, please see the Monnit Serial MODBUS Gateway User’s Manual for example...
  • Page 6: Change Communication Settings

    Change Communication Settings If you prefer to use different communication settings than the default, follow the instructions on the next page. Otherwise, skip to the next section. Register Function Description Name Code Address BAUDRATE 40006 Designates the baud rate used by the MODBUS interface.
  • Page 7: Adding A Wireless Device To The Gateway

    5. Adding a Wireless Device to the Gateway DO NOT INSERT BATTERIES UNTIL SENSOR HAS BEEN REGISTERED. In order for the Serial MODBUS Gateway to activate the wireless network, you will need to register at least one wireless device. Each Monnit device has a 32-bit serial identifier (SID).
  • Page 8 When registering your first device, the gateway will need time to form its first network, which takes 30 seconds. During this time, the middle LED will go red signifying there is no wired communication available, then the third LED will start flashing while the wireless network forms.
  • Page 9 DATA_0, 1, 2, 3, 4 Data is generated by wireless device. DATA_1, The format for this data can be found in the DATA_2, Monnit Serial MOD-BUS Sensor Application DATA_3 Definition document Battery register value / 100 = x.xx Volts RSSI...
  • Page 10 Below are instructions on how to decode the data for five common sensor types: Temperature DATA_0: INT16, SIGNED. Data is recorded in Celsius. Divide data by 10 to get degrees Celsius out to one decimal point. Example: Data=271. 271/10 = 27.1°C DATA_1, DATA_2, DATA_3 are not used.
  • Page 11: Troubleshooting

    Troubleshooting If you cannot talk to the Serial MODBUS Gateway, please double check the following: Verify the voltage on the red wire interfaced to our unit is 4.5V – 36.0 VDC. When powering the device you should see the startup indicator lights flash red and green for ~4 seconds.
  • Page 12 View the full user’s guide at http://www.monnit.com/smg-guide. Monnit Corporation 7304 South Cottonwood Suite #204 Midvale, Utah 84047 www.monnit.com All trademarks are property of Monnit. ©2009-2014 Monnit Corp. All Rights Reserved. MQS06-3B (3/14) - 12 -...

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