Rockwell-automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Commun Uživatelský manuál stáhnout pdf (Strana 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

1 2 ... 187 188 189 190 191 192 193 194 195 196 197 ... 237 238

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