ICP DAS USA tGW-735 1 User manual

tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 1
Quick Start
for tGW-735
1What’s in the Shipping Package?
The package includes the following items:

tGW-735  Quick Start (This Guide)  Software CD  DC Connector Power Cable
2Installing Software on Your PC
Decompress eSearch Utility, which can be obtained from either
the companion CD-ROM or the web site:
http://ftp.icpdas.com/pub/cd/tinymodules/napdos/software/esearch/

tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 2
3Connecting the Power and Host PC

Make sure your PC has workable network settings.
Disable or well configure your Windows firewall and Anti-Virus firewall
first, else the “Search Servers” on Chapter 5 may not work. (Please
contact with your system Administrator)

Make sure the switch is placed in the “Run” mode.

Connect both the tGW-700 and your PC to the same sub network or the same Ethernet Switch.

Supply power (PoE or +12 ~ +48 VDC ) to the tGW-700.

tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 3
4Connecting the Modbus Devices

Connect the Modbus device (Slave, e.g., M-7055D, optional) to your tGW-700, as follows:

Supply
power (+10 ~+30 VDC) to the Modbus device (e.g., M-7055D, Device ID: 1).
RS-232 Wiring:
RS-485 Wiring:

tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 4

tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 5
6Configuring the Serial Port
Note that if you intend to use Internet Explorer, ensure that the cache function is disabled
in order to prevent browser access errors, please disable your Internet Explorer cache as follow:
(If you are not using IE browser, please skip this step.)
Step 1: Click “Tools” >> “Internet Options...” in the menu items.
Step 2: Click the “General” tab and then click the “Settings...” button in Temporary Internet files frame.
Step 3: Click the “Every visit to the page” and then click the “OK” button in Settings box and Internet
Options box.

Enter the password (use the default
password “admin”) in the Login password
field and click the “Submit” button.


Click the “Port1” tab to display the Port1 Settings page.

Select the same Modbus protocol for tGW-700 in according to the protocol of the Modbus device (e.g., Modbus
RTU/ASCII), and click the “Submit” button to save your settings.



tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 6
7Self-Test

In the eSearch Utility, select the “Modbus TCP Master” item from the “Tools” menu to open the Modbus
TCP Master Utility.
In the Modbus TCP Modbus Utility, enter the IP address of tGW-700 and then click the “connect” button to
connect the tGW-700.

tGW-735 tiny Modbus Gateway - QuickStart (Feb/2017)
ICP DAS USA, Inc. | www.icpdas-usa.com | 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717 7
8 Successful Testing

Refer to “Protocol Description” section and type the command in the “Command” field then click the
“Send command” button. If the response data is correct, it means the test is success.
e.g., If M-7000 Modbus device ID = 1, you send “1 2 0 0 0 6 1 2 0 0 4” for reading D/I value,
you receive response “1 2 0 0 0 4 1 2 1 0” as shown below.

Related Information
tGW-700 product page:
http://www.icpdas-usa.com/tgw_735.html