LAARS Gateway LER - Manual User Manual
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LAARS Heating Systems
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LAARS Gateway Startup Guide
Page 16 of 32
LAARS Heating Systems Company, 20 Industrial Way, Rochester, NH 03867 USA
Web:
www.laars.com
Toll Free: (800) 900-9276
Appendix A.
Troubleshooting Tips if the Unit is Not Working
Appendix A.1.
Check Wiring and Settings
No COMS on Modbus RTU side. If TX/RX is not flashing rapidly then there is a COM issue on the Modbus
side and you need to check the following things:
o Visual observations of LEDs on Gateway. See Appendix A.3
o Check baud rate, parity, data bits, stop bits
o Check Modbus device address
o Verify wiring
Field COM problems.
o Visual observations of LEDs on Gateway. See Appendix A.3
o Visual dipswitch settings (using correct baud rate and device instance)
o Verify IP address setting
o Verify wiring
If the problem still exists, a log needs to be taken and sent to FieldServer.
Appendix A.2.
Take Log With Our FieldServer Utilities
Once the log is complete, email it to
. The log will allow us to rapidly diagnose
the problem.
Make sure the FieldServer utilities are loaded on the PC.
http://fieldserver.com/techsupport/utility/utility.php
Disable any wireless Ethernet adapters on the PC/Laptop
Disable firewall and virus protection software
Connect a standard cat5 Ethernet cable between the PC and
The Default IP Address of the Gateway is 192.168.1.24, Subnet Mask is 255.255.255.0. If the PC and the
Gateway are on different IP Networks, assign a static IP Address to the PC on the 192.168.1.xxx network
For Windows XP:
Go to
>
>
Right-click on Local Area Connection > Properties
Highlight
>
Ethernet Port