Campbell Scientific LoggerNet Datalogger Support Software - Manual (Page 481)

Section 14. Troubleshooting Guide
Remedy: Change one of the duplicate PakBus Addresses. Make all
addresses unique throughout the network.
Problem: In P193 network, certain CR200 Series devices don’t transfer data.
Possible reason: The Master datalogger’s *D15 setting configures
too few max nodes, max neighbors, and max routers.
Remedy: Change Master *D15 settings for max nodes, max
neighbors, and max routers to larger numbers reflecting the network
size.
*D15 settings allocate memory similar to *A. It is a good idea, when
configuring *D15 settings, to leave ‘room to grow.’ Changing *D15
settings later on could result in loss of data.
14-19