Rockwell Automation 20-COMM-D DeviceNet Adapter Series B FRN 2.xxx - Manual (Page 204)

C-10 DeviceNet Objects
20-COMM-D DeviceNet Adapter User Manual
Publication 20COMM-UM002G-EN-P
N-Files
N-File Description
N41 This N-file lets you read and write control I/O messages. You can write control I/O
messages only when all of the following conditions are true:
• The adapter is not receiving I/O from a scanner. For example, there is no scanner on
the network, the scanner is in idle (program) mode, the scanner is faulted, or the
adapter is not mapped to the scanner.
• The adapter is not receiving Peer I/O from another adapter.
• The value of N42:3 is set to a non-zero value.
Write
Read
N41:0
N41:1
N41:2
N41:3
N41:4
N41:5
N41:6
N41:7
N41:8
N41:9
N41:10
N41:11
N41:12
N41:13
N41:14
N41:15
N41:16
N41:17
N41:18
Logic Command Word
Reference (least significant word)
Reference (most significant word)
Datalink A1 (least significant word)
Datalink A1 (most significant word)
Datalink A2 (least significant word)
Datalink A2 (most significant word)
Datalink B1 (least significant word)
Datalink B1 (most significant word)
Datalink B2 (least significant word)
Datalink B2 (most significant word)
Datalink C1 (least significant word)
Datalink C1 (most significant word)
Datalink C2 (least significant word)
Datalink C2 (most significant word)
Datalink D1 (least significant word)
Datalink D1 (most significant word)
Datalink D2 (least significant word)
Datalink D2 (most significant word)
Logic Status Word
Feedback (least significant word)
Feedback (most significant word)
Datalink A1 (least significant word)
Datalink A1 (most significant word)
Datalink A2 (least significant word)
Datalink A2 (most significant word)
Datalink B1 (least significant word)
Datalink B1 (most significant word)
Datalink B2 (least significant word)
Datalink B2 (most significant word)
Datalink C1 (least significant word)
Datalink C1 (most significant word)
Datalink C2 (least significant word)
Datalink C2 (most significant word)
Datalink D1 (least significant word)
Datalink D1 (most significant word)
Datalink D2 (least significant word)
Datalink D2 (most significant word)
N42 This N-file lets you read and write some values configuring the port.
N42:3 Time-out (read/write): Time (in seconds) allowed between messages to the N41 file. If the
adapter does not receive a message in the specified time, it performs the fault action
configured in its [Comm Flt Action] parameter. A valid setting is between 1 and 32767
seconds (5…20 seconds is recommended).
N42:7 Adapter Port Number (read only): DPI port on the drive to which the adapter is connected.
N42:8 Peer Adapters (read only): Bit field of devices having DPI Peer capabilities.