Controller data read, 3-2 controller data read, Command block response block parameters – Omron CS1W-ETN21 User Manual

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Command/Response Reference

Section 7-3

7-3-2

CONTROLLER DATA READ

Reads the following data from the Ethernet model, version, IP address, sub-
net mask, FINS UDP port number, mode settings, Ethernet address.

Command Block

Response Block

Parameters

Model, Version
(Response)

The Ethernet Unit mode and version are returned as ASCII characters occu-
pying 20 bytes each (i.e., 20 characters each). If all bytes are not used, the
remaining bytes will be all spaces (ASCII 20 Hex).

Example Model:

CS1W-ETN21, CJ1W-ETN21

Version:

V1.20

IP Address, Subnet Mask
(Response)

The Ethernet Unit’s IP address and subnet mask are returned as 4 bytes
each.

FINS UDP Port Number
(Response)

The Ethernet Unit’s UDP port number for FINS is returned as 2 bytes.

Mode Setting (Response)

The mode setting in the system setup is returned.

Broadcast Address Setting

0: Broadcast with host number set to all ones (4.3BSD specifications)

1: Broadcast with host number set to all zeroes (4.2BSD specifications)

IP Address Conversion Method Setting

00, 01: Automatic generation method

10: IP address table reference method

11: Combined method (IP address table reference + automatic generation)

FINS/UDP Port Number Setting

0: Default (9600)

1: Unit Setup value

05 01

Command code

05 01

20 byte

4 byte

Subnet

mask

4 byte

FINS UDP

port number

Mode

setting

6 byte

Ethernet address

Response

code

Command

code

Model

Version

IP address

0 Bit

Broadcast address setting

IP address conversion method

UDP port No. setting for FINS

System setup format

TCP port No. setting for FINS/TCP

Transmission speed setting

SNTP server specification method

SMTP server specification method

POP server specification method