BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS
11 63-4523—01
TROUBLESHOOTING Error / Trouble
Condition
Possible Cause Solution
Thermostat does not
come online
Two or more controllers have the same
MAC address.
Modify each duplicate address to a unique
number.
The MS/TP network has too many devices. Do not exceed the maximum number of
devices and maximum length allowed by the
EIA-485 specifications.
Too many devices were installed without
any repeaters.
Repeaters need to be installed as specified
in this document.
The MS/TP cable runs are broken Locate the break and correct wiring
MS/TP connections at the module were
reversed
Respect polarity of the wires on a MS/TP
network.
The thermostat does not have power Apply power to the thermostat