Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual - Manual (Page 192)

192 Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013
Appendix C EtherNet/IP Objects
The adapter supports the following PCCC command types:
For more information regarding PCCC commands, see DF1 Protocol and
Command Set Manual,
publication 1770-6.5.16
.
N-Files
CMD FNC Description
0x06 0x03 Identify host and some status
0x0F 0x67 PLC-5 typed write
0x0F 0x68 PLC-5 typed read
0x0F 0x95 Encapsulate other protocol
0x0F 0xA2 SLC 500 protected typed read with 3 address fields
0x0F 0xAA SLC 500 protected typed write with 3 address fields
0x0F 0xA1 SLC 500 protected typed read with 2 address fields
0x0F 0xA9 SLC 500 protected typed write with 2 address fields
0x0F 0x00 Word range read
0x0F 0x01 Word range write
N-File Description
N40 This N-file lets you use Emulated Block Transfer messages to read and write many types of DPI messages.
To use Emulated Block Transfer messages, you send a Write message to N40:0…N40:63, wait until the
adapter responds with a reply message, and then read the response data in N40:0…N40:63 with a Read
message.
For details about Block Transfer messages and the data required for each byte in the N-File, see the Remote
I/O Adapter User Manual, publication 20COMM-UM004.
Bits 15…8 are the Most Significant Byte. Bits 7…0 are the Least Significant Byte.
Write Read
Bits 15 0 15 0
N40:0 0x00 Length (in Bytes) 0x00 Length (in Bytes)
N40:1 DPI Port 0x81 Status Size Status Type
N40:2 0x00 CIP Service Data
(length varies based on message)
N40:3 CIP Class
N40:4 CIP Instance
N40:5 CIP Attribute
N40:6 Data
(length varies based on message)
…
N40:63
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