Internode echo test, Precautions, Response codes – Omron SYSMAC CJ1W-EIP21 User Manual

Page 422: Command block response block parameters

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396

FINS Commands Addressed to EtherNet/IP Units or Built-in EtherNet/IP Ports

Appendix E

Total Number of Packets Sent (Response)

The total number of packets sent by the EtherNet/IP Unit or built-in EtherNet/IP port is returned.

Total Number of Errors Sent (Response)

The total number of packet errors detected while the EtherNet/IP Unit or built-in EtherNet/IP port was sending
is returned.

Total Number of Send Collisions (Response)

Returns the number of packets damaged by 16 collisions with data from other nodes during EtherNet/IP Unit or
built-in EtherNet/IP port transmissions.

Precautions

Counting of the total number of packets received, total number of receive errors, total number of packets sent,
total number of errors sent, and total number of send collisions is discontinued when the counted value
reaches the maximum value.

Response Codes

INTERNODE ECHO TEST

Performs an echoback test (internode communications test) between specified nodes.

Command Block

Response Block

Parameters

Test Data (Command, Response)

This command specifies the data to be sent to the specified nodes. Up to 1,998 bytes can be specified. The
response sends back data identical to the data specified in the command. An abnormality is assumed if the
data returned in the response differs from the test data sent.

Precautions

• The test destination node is the destination node specified in the CMND(194) instruction operands.

• Always specify the unit address of the EtherNet/IP Unit or built-in EtherNet/IP port in the CMND(194)

instruction.

Response code

Description

0000

Normal end

1001

Command too large

08 01

Command

code

1,998 bytes max.

Test data

08 01

Response

code

Command

code

1,998 bytes max.

Test data

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