User Manual

Troubleshooting 8-7
20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Events
Many events in the event queue occur under normal operation. If you
encounter unexpected communications problems, the events may help you
or Allen-Bradley personnel troubleshoot the problem. The following events
may appear in the event queue:
Table 8.B Adapter Events
Code Event Description
1 No Event Empty event queue entry.
2 DPI Bus Off Flt A bus-off condition was detected on DPI. This event may be caused by
loose or broken cables or by noise.
3 Ping Time Flt A ping message was not received on DPI within the specified time.
4 Port ID Flt The adapter is not connected to a correct port on a DPI product.
5 Port Change Flt The DPI port changed after start up.
6 Host Sent Reset The drive sent a reset event message.
7 EEPROM Sum Flt The EEPROM in the adapter is corrupt.
8 Online @ 125kbps The adapter detected that the drive is communicating at 125 kbps.
9 Online @ 500kbps The adapter detected that the drive is communicating at 500 kbps.
10 Bad Host Flt The adapter was connected to an incompatible product.
11 Dup Port Flt Another peripheral with the same port number is already in use.
12 Type 0 Login The adapter has logged in for Type 0 control.
13 Type 0 Time Flt The adapter has not received a Type 0 status message within the
specified time.
14 DL Login The adapter has logged into a Datalink.
15 DL Reject Flt The drive rejected an attempt to log in to a Datalink because the
Datalink is not supported or is used by another peripheral.
16 DL Time Flt The adapter has not received a Datalink message within the specified
time.
17 Control Disabled The adapter has sent a “Soft Control Disable” command to the drive.
18 Control Enabled The adapter has sent a “Soft Control Enable” command to the drive.
19 Message Timeout A Client-Server message sent by the adapter was not completed within
1 sec.
20 DPI Fault Msg The drive has faulted.
21 DPI Fault Clear The drive issued this because a fault was cleared.
22 Normal Startup The adapter successfully started up.
23 Flt Cfg Error The adapter detected a 32-bit fault configuration reference when the
drive supports only a 16-bit reference, or detected a 32-bit fault
configuration Datalink value when the drive supports only 16-bit
Datalinks.
24 Net Comm Flt The adapter detected a communications fault on the network.
25 Net Detected The adapter has detected network communication.
26 Net TImeout Flt The adapter has detected a network timeout. The timeout period is
configured in Parameter 11- [Network Timeout].
27 Lang CRC Bad The CRC of the language text file is incorrect.