General sta-
tus code
(hex)
Error name Cause
19 Store operation failure The parameters could not be saved due to internal reasons.
1F Vendor specific error The service could not be executed due to internal reasons.
20 Invalid parameter
• The Unit number is out of the supported range.
• The Unit does not exist.
Switch Parameter Write Mode (Service Code: 37 hex)
Switch the parameter write mode of the specified NX Units.
Request Data Format
Parameter name Data type Description
Service USINT Switch parameter write mode service: 37 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
0000 hex: All NX Units
0001 to 0020 hex: NX Unit
0021 hex or above: Not supported
Response Data Format
When the processing is successful
Parameter name Data type Description
Reply Service USINT Switch parameter write mode service response: B7
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
When the processing failed
Parameter name Data type Description
Reply Service USINT Switch parameter write mode service response: B7
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
8 CIP Message Communications
8-57
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
8-5 CIP Object Services
8
8-5-3 NX Configuration Object (Class ID: 74 hex)