FAQ & Troubleshooting
70
Doc.ID. HMSI-168-92
Netbiter EasyConnect
Doc.Rev. 2.10
13.2 Troubleshooting
Problem: The Netbiter EasyConnect Gateway Does not Come Online
•
GPRS
: In Netbiter Argos, check the APN settings and signal strength. Ensure that the PIN code
for the SIM card is disabled.
• For
Ethernet
: Make sure that one of the Ethernet ports 443, 80 or 5222 is open in the firewall,
and if a proxy is used, check that the settings for it are correct.
To test the connection, download and use the
Netbiter Connection Test tool
at support.netbiter.com.
This tool is for Windows XP/Vista/7 and it should be run on the same network as the Netbiter Easy-
Connect Gateway. It will report any problems found in the connection to the Netbiter.net server (e.g.
traffic blocked in firewall etc).
Problem: The Presentation Page Does not Show any Values
This is probably due to incorrect Modbus settings. In the local configuration pages, go to
Setup >> Modbus
and check the settings.
Problem: My Netbiter EasyConnect Gateway Does not Show up in Netbiter Config
Netbiter Config can be used to discover a Netbiter EasyConnect Gateway on the local network. Note,
however, that only the network on the primary network interface (NIC) will be scanned.
By default, the Netbiter EasyConnect Gateway is configured to use a DHCP server, which assigns the
unit an IP address. If the module is connected to a network with no DHCP server, the unit will not get
an IP address, and will not appear in Netbiter Config.
To set a static IP address (on models with an Ethernet connection), the Netbiter EasyConnect Gateway
can be connected directly to a computer, using a standard Ethernet cable. In Netbiter Config, click the
Advanced Option
s button at the bottom left corner of the program window. A DHCP server can now
be started from Netbiter Config. Check the box for
Enable internal DHCP server
.
Make sure that the computer is directly connected to the Netbiter EasyConnect Gateway. The unit will
be given a temporary IP address and will appear in the Netbiter Config list. Double-click on the unit and
set a static IP address, gateway and DNS server. To disable the internal DHCP server, click the
Advanced Options
button.
Problem: Log Files Have Empty Fields (Missing Data)
Some modbus slaves have a minor timing issue that results in their not listening for a short period of
time when other slaves have been accessed. Most devices follow the Modbus specification for these tim-
ings, but others may require a slightly higher value.
There are two settings available from the local configuration pages that may compensate for this situa-
tion. These are found at:
Setup>>Modbus
• Parameter “Slave Response Timeout” - try increasing this in steps of 250ms. If there is no im-
provement at 1500 or more, the problem is elsewhere.
• Parameter "Extra delay between messages". Starting at 20, experiment with a few different val-
ues, increasing in steps of 20 to see if this resolves the issue. If there is no improvement by
200ms, then the problem is elsewhere.
Problem: Modbus Communication is Not Working over RS-485
This is often due to a problem with the wires. Check that the A and B lines are connected properly. If
there is no problem with the wires, try switching places for the A and B lines.