Communications Options User’s Guide
49
Chapter 5. Modbus Over WI-FI Communications
5.3 Setup
The default IP address in setting up the Modbus Over WI-FI option card is Dynamic (DHCP). If it has to be changed to
a static IP address, the instrument must first be linked to the DHCP network.
Note:
The following are setup procedure examples.
The
Digi Device Discovery Program is required to set up WI-FI parameters. To download the program, proceed with
the following steps:
5.3.1
Downloading the Digi Device Discovery Program
1.
Go to www.digi.com on the internet.
2.
Move the cursor to the
SUPPORT
button and select
Diagnostics, Utilities and MIBs from the menu.
3.
Open the
Select Your Product for Support
menu and select
Digi Connect ME. Then click on
Submit
.
4.
From the
OS Specific Diagnostics, Utilities and MIBs
menu select
Microsoft Windows NT 4.0, 2000 or XP. Then, under the
window, select
Device Discovery Utility for Windows, and the
File Download
window appears.
5.
Select
Save this file to a disk,
click on
OK
, and save the file to your computer.
6.
Install the program from the downloaded file.
5.3.2 Module LED Behaviors
•
Yellow ON
:
Associated with Access Point
•
Yellow Blinking Slowly:
Ad hoc mode
•
Yellow Blinking Quickly:
Scanning for a network
5.3.3 Default Parameters
•
Baud Rate:
9600 bps
•
Data Bits:
8
•
Parity:
None
•
Stop Bits:
1
•
Flow Control:
None
•
TCP/UDP Port:
502
IMPORTANT:
This Modbus over WI-FI option card is shipped with DHCP IP addressing, and all the security options
disabled. If your wireless LAN has any security set, it should be disabled to have this card join your
wireless network. A solid yellow LED on the card indicates the card is joined to the wireless network.
