Rockwell Automation 20-COMM-B BACnet MS/TP Adapter - Manual (Page 48)

5-6 Troubleshooting
Adapter Diagnostic Items
If you encounter unexpected communications problems, diagnostic
items can help you or Rockwell Automation personnel troubleshoot the
problem.
No. Name Description
1 Common Logic
Cmd The present value of the Common Logic Command being transmitted to the
drive by this adapter.
2 Prod Logic Cmd The present value of the Product Logic Command being transmitted to the
drive by this adapter.
3 Reference The present value of the Reference being transmitted to the drive by this
adapter. Note that a 16-bit value will be sent as the Most Significant Word of
the 32-bit field.
4 Common Logic
Sts The present value of the Common Logic Status being received from the
drive by this adapter.
5 Prod Logic Sts The present value of the Product Logic Status being received from the drive
by this adapter.
6 Feedback The present value of the Feedback being received from the drive by this
adapter. Note that a 16-bit value will be sent as the Most Significant Word of
the 32-bit field.
7 DPI Port The port to which the adapter is connected (usually port 5).
8 DPI Data Rate The data rate used by the drive and detected by the adapter.
9 Ref/Fdbk Size The size of the Reference/Feedback used by the drive.
10 DPI Rx Errors The present value of the DPI CAN Receive error counter register.
11 DPI Rx Error Max The maximum value of the DPI CAN Receive error counter register.
Because the CAN interface controller on the adapter does not track the
maximum error register values, the adapter periodically polls the CAN
controller’s Receive error counter register and reports the maximum value it
has read in this diagnostic instance.
12 DPI Tx Errors The present value of the DPI CAN Transmit error counter register.
13 DPI Tx Error Max The maximum value of the DPI CAN Transmit error counter register.
Because the CAN interface controller on the adapter does not track the
maximum error register values, the adapter periodically polls the CAN
controller’s Transmit error counter register and reports the maximum value it
has read in this diagnostic instance.
14 Boot Flash Count The number of times the boot firmware in this adapter has been flash
updated.
15 App Flash Count The number of times the application firmware in this adapter has been flash
updated.
16 MAC Addr SW The MAC Address selected by the DIP switches (SW1-SW7) on the adapter.
This value is not latched when the adapter powers up, and will update as the
switch settings are changed.
17 BN Rx Packets The number of BACnet packets received by the adapter.
18 BN Tx Packets The number of BACnet packets transmitted by the adapter.
19 BN Overrun Errs A count of the number of BACnet receive overrun errors.
20 BN Framing Errs A count of the number of BACnet receive framing errors.
21 BN CRC Errs A count of the number of BACnet receive CRC errors.