LAARS Gateway LER - Manual - Manual (Page 16)

LAARS Heating Systems Page 16
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 [email protected] . 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