Omron CS1W-ETN21 operation manual Command/Response Reference, Reset

Command/Response Reference Section 7-3

7-3 Command/Response Reference

This section describes the FINS commands that can be sent to Ethernet Units and the responses to each command.

The command, response, and (where applicable) the results storage blocks are given with the commands in graphic form as shown in the following dia- gram. If the data is fixed, it is included in the blocks. If the data is variable, it is described following the blocks. Each box represents 1 byte; every two boxes represents 1 word. The following diagram shows 2 bytes, or 1 word.

Two bytes

The results storage format is the format used to store transfer results and data for socket services requested with command codes 2701 to 2714.

Response codes applicable to the command are described at the end of the command description. If any UNIX error codes are generated, these are also described. Refer to your UNIX error symbol definition file /usr/include/sys/ errno.h for details. UNIX errors are returned in the results storage area.

Note Except for special cases, all send/receive data is in hexadecimal format.

7-3-1 RESET

Reset the Ethernet Unit.

Command Block

0403

Command code

Response Block

04 03

Command Response

code code

Precautions

No response will be returned if the command ends normally. A response will be returned only if an error occurs.

In some cases, send requests (SEND(192)/RECV(193) instructions) made from the PLC to the Ethernet Unit just before execution of the RESET com- mand may not be executed.

Except for the FINS communications service sockets, all open sockets (for sockets services, FTP server, or mail transmission) are closed immediately before resetting.

Response Codes

Response code	Description
1001	Command too large

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