Reference Manual
Table Of Contents
- Preface
- 1. Introduction
- 2. Basic Radio Programming and Setup
- 2.1. Setting the Radio's Role in the Network and the Network Type
- 2.2. Establishing Communication with Instrumentation and Computers
- 2.3. Establishing Communication with Other Radios in the Network
- 2.4. Designate the RF Transmission Characteristics
- 2.4.1. 900MHz Channel Select Parameters
- 2.4.2. 900MHz Frequency Key (Golden Setting)
- 2.4.3. 900MHz Frequency Zones
- 2.4.4. High Noise
- 2.4.5. 900MHz Hop Frequency Offset
- 2.4.6. 900MHz Hop Table Size
- 2.4.7. 900MHz Hop Table Version
- 2.4.8. Max Packet Size and Min Packet Size (Golden Setting)
- 2.4.9. MCU Speed
- 2.4.10. Remote LED
- 2.4.11. Retry Time Out
- 2.4.12. RF Data Rate (Golden Setting)
- 2.4.13. RTS to CTS
- 2.4.14. Slave Security
- 2.4.15. Transmit Power
- 2.4.16. Transmit Rate
- 3. Configuring Point-to-MultiPoint Networks
- 3.1. Point to MultiPoint Network Characteristics
- 3.2. Point-to-MultiPoint Network Quick Start
- 3.3. Point-to-MultiPoint Operation LEDs
- 3.4. Overlapping MultiPoint Networks
- 3.5. Establishing Communication with Other Radios in a MultiPoint Network
- 3.6. Routing Communications through the Network
- 3.7. Setting Other MultiPoint Parameters
- 3.7.1. 1 PPS Enable Delay
- 3.7.2. Diagnostics
- 3.7.3. DTR Connect
- 3.7.4. Local Mode
- 3.7.5. Master Packet Repeat
- 3.7.6. Master Packet Repeat in MultiPoint Networks with Repeaters
- 3.7.7. Max Slave Retry
- 3.7.8. Radio ID
- 3.7.9. Radio Name
- 3.7.10. Repeaters
- 3.7.11. Repeater Frequency
- 3.7.12. Retry Odds
- 3.7.13. Slave / Repeater
- 3.8. Conserving Power
- 3.9. Reading Diagnostics in Tool Suite
- 4. Configuring Point-to-Point Networks
- 5. Advanced Programming
- 6. Viewing Radio Statistics
- 7. Approved Antennas
- 8. FGR3 Wireless Data Radios Pinouts
- 9. Troubleshooting
- 10. FGR3 Release Notes
- Appendix A: FGR3 Technical Specifications
- Appendix B: FGR3 Board Level Mechanical Drawing
- Appendix C: 900MHz Factory Default Settings
- Appendix D: 900MHz Channel Frequency IDs
- Appendix E: FreeWave Legal Information
2. Basic Radio Programming and Setup
FGR3
User-Reference Manual
LUM0110AA Rev Jan-2019 Page 37 of 143 Copyright © 2019FreeWave
This document is subject to change without notice. This document is the property of FreeWave Technologies, Inc.
and contains proprietary information owned by FreeWave. This document cannot be reproduced in whole or in
part by any means without written permission from FreeWave Technologies, Inc.
Flow Control
Setting Description
Description: Specifies the hardware flow control for the data port on the radio.
Flow control is the process of managing the speed data is transmitted to not
overwhelm the device receiving the transmission.
FREEWAVE Recommends: Use Flow Control if the Baud Rate is
higher than 38,400.
2.2.4. Modbus RTU
Note: When using the radio in Modbus RTU mode, the Master Packet Repeat parameter setting on
the MultiPoint Parameters tab MUST match in every radio.
The Modbus RTU mode must be set to 1 when radios are configured in RS422 or RS485 mode.
Modbus RTU
Setting Description
Default Setting 0 (Disabled)
Options 0 to 9
Terminal Menu (1) Set Baud Rate > (B) ModbusRTU
Description: A setting other than 0 in this parameter causes the radio to wait for an amount of
time gathering data before sending out the RF link.
l 0 (Disabled) - The radio sends data out through its RF link as soon as the data
is received into the serial port. This is the default setting.
l 1 - The radio waits for a number of slots equal to two times the Master Packet
Repeat setting before sending the received data out the RF link.
Example: If the Master Packet Repeat parameter is set to 3, the radio
waits for 6 slots, gathering data up the whole time.
At the end of the 6 slots, the radio sends all received data in one “burst.”
This is the appropriate setting for most Modbus RTU devices.
l 2 or higher - The radio waits for a number of slots calculated using this
formula:
(Modbus RTU setting + Master Packet Repeat setting + 1) x 2
Example: In a radio where the Modbus RTU setting is 2 and the Master
Packet Repeat setting is 3, the radio waits for(2+3+1)x2, or 12 slots.