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GPS-721
GPS Receiver and 1 DO, 1 PPS Output
Module
Quick Start Guide
1. Introduction
This manual introduces the user to the methods used to implement the GPS-721
module into their applications in a quick and easy way, and will only provide
basic instructions. For more detailed information, please refer to the GPS-721
user manual located on the ICP DAS CD-ROM, or download it from the ICP DAS
web site:
https://www.icpdas-usa.com/gps_721.html
2. Package Checklist
GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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3. Appearance
GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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3. Block Diagram & Pin Assignments
4. LED Indicators
GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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5. Wiring
GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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Default address and communication parameters:
• Protocol: DCON
• Module address: 01 (INIT mode: 00)
• Communication Baud Rate: 9600 bps
• Checksum: Disabled
Quick Start
1. Refer to the pin assignments for details of how to install the power and antenna.
2. Connect the module to the RS-485 network using the DATA+ and DATA terminals. If
the host is only equipped with an RS-232 interface, then an RS-232 to RS-485
converter will be required. The GPS-721 supports RS-232 connections.
• By setting GPS-721 to INIT mode, the default settings can be used to connect to
the GPS-721.
3. Configure the module by sending the %AANNTTCCFF command. See Section 2.1 of
the User Manual for details.
• ICP DAS provides two free tools, the DCON Utility and Send232.exe.
GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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4. You can implement the functions of the modules using the following DCON
commands.
5. If the host is a PC with a Windows operating system installed, the DCON Utility can
be used to allow easy configuration and reading of data. The DCON Utility can be
downloaded from the ICP DAS website (http://www.icpdas-usa.com). The
documentation for the DCON Utility can be found in the ”Getting Started For I-7000
Series Modules” manual.
Note: If the GPS-721 is unable to receive GPS signals, check the position of the
antenna or install the GPS antenna in an open environment. DCON Command Table
GPS-721 GPS Receiver - QuickStart (Aug/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1 -310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
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