Rockwell Automation 20-COMM-M Modbus/TCP Adapter - Manual (Page 56)

5-4 Troubleshooting
20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
Viewing Adapter Diagnostic
Items If you encounter unexpected communications problems, the adapter’s
diagnostic items may help you or Rockwell Automation personnel
troubleshoot the problem. Adapter diagnostic items can be viewed using an
LCD PowerFlex 7-Class HIM (Diagnostics/Device Items), DriveExplorer
software (version 2.01 or higher), or DriveExecutive software (version 3.01
or higher).
Using the HIM to View Adapter Diagnostic Items
Step Example Screen
1. Access parameters in the adapter. Refer to Using the PowerFlex
7-Class HIM on page 3-2 .
2. Press the or key to scroll to Diagnostics.
3. Press the (Enter) key to display the Diagnostics menu in the
adapter.
4. Repeat steps 2 and 3 to enter the Device Items option.
5. Press the or key to scroll through the items.
Main Menu:
Diagnostics
Parameter
Device Select
Device Item # 3
Reference
Table 5.A Adapter Diagnostic Items
No. Name Description
1 DPI Common Cmd The present value of the Common Logic Command being transmitted to the drive by this adapter.
2 DPI Product 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. If the drive
indicates a 16-bit Reference size, the Reference value appears in the least significant 16 bits of
this diagnostic item, and the most significant 16 bits of this diagnostic item are zero (0).
4 DPI Common Sts The present value of the Common Logic Status being received from the drive by this adapter.
5 DPI Product 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. If the drive
indicates a 16-bit Feedback size, the Feedback value appears in the least significant 16 bits of
this diagnostic item, and the most significant 16 bits of this diagnostic item are zero (0).
7 Datalink A1 In The present value of respective Datalink In being transmitted to the drive by this adapter. If not
using a Datalink, this parameter should have a value of zero. If the drive indicates a 16-bit
Datalink size, the Datalink value appears in the least significant 16 bits of this diagnostic item,
and the most significant 16 bits of this diagnostic item are zero (0).
8 Datalink A2 In
9 Datalink B1 In
10 Datalink B2 In
11 Datalink C1 In
12 Datalink C2 In
13 Datalink D1 In
14 Datalink D2 In
15 Datalink A1 Out The present value of respective Datalink Out being received from the drive by this adapter. If the
drive indicates a 16-bit datalink size, the value appears in the least significant 16 bits of this
diagnostic item, and the most significant 16 bits of this diagnostic item are zero (0).
16 Datalink A2 Out
17 Datalink B1 Out
18 Datalink B2 Out
19 Datalink C1 Out
20 Datalink C2 Out
21 Datalink D1 Out
22 Datalink D2 Out
23 DPI Rx Errors The present value of the DPI Receive error counter.
24 DPI Rx Error Max The maximum value (since reset) of the DPI Receive error counter.
25 DPI Tx Errors The present value of the DPI Transmit error counter.
26 DPI Tx Error Max The maximum value (since reset) of the DPI Transmit error counter.