Omron Sysmac NX1P2-10 1 Series, Руководство пользователя

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Read NX object (Service Code: 33 hex)
Read the NX object of the specified NX Unit.

Request Data Format
Parameter name Data type Description
Service USINT Read NX object service: 33 hex
Request Path Size USINT Size of Request Path: 02 hex
Request Path Padded EPATH Request path: 2074 2401 hex
Class ID: 74 hex
Instance ID: 01 hex
Unit No UINT Unit number
0001 to 0020 hex: NX Unit
0000, 0021 hex or above: Not supported
Index UINT NX object index
Sub index USINT NX object sub index
Control Field USINT Complete access specification
00 hex: Not specified

Response Data Format
When the processing is successful
Parameter name Data type Description
Reply Service USINT Read NX object service response: B3 hex
Reserved USINT Reserved: 00 hex
General Status USINT Code indicating normal: 00 hex
Size of Additional Status USINT Size of Additional Status: 00 hex
Length UINT Read data size (Byte)
Read data Depends on data
type Read data
When the processing failed
Parameter name Data type Description
Reply Service USINT Read NX object service response: B3 hex
Reserved USINT Reserved: 00 hex
General Status USINT Current error code defined by CIP
Size of Additional Status USINT
Size of Additional Status: 00 hex or 01 hex
*1
Additional Status UINT
Additional Status
*2
*1. When the General Status of the response code is 1F hex (Vendor specific error), becomes 01 hex.
*2. This is stored only when the Size of Additional Status is 01 hex.

CIP Error Codes
General sta-
tus code
(hex)
Error name Cause
02 Resource unavailable Resources needed for the object to perform the requested
service were unavailable.
8 CIP Message Communications
8-52
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)