Omron Sysmac NJ-series User Manual

8-61
8 CIP Message Communications
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
8-6 Read and Write Services for Variables
8
8-6-2 Write Service for Variables
Specify service code 4D hex to write the value of the variable that is specified by the request path.
* Data to write: Store the data to write in little-endian format.
8-6-2 Write Service for Variables
Request Data Format for Writing a Variable
Data Type Code for data type of variable to write
Refer to 8-7 Variable Data Types.
AddInfoLength Specify the size of the AddInfo area only when accessing a structure variable. Set 02
hex for a structure variable. Otherwise, set 00 hex.
AddInfo The CRC code of the structure definition is specified only when accessing a structure
variable. In this case, the size of AddInfo will be 2 bytes.
NumOfElement Specifying the number of elements in the array. Do not specify 0000 hex (an error will
occur). For variables other than arrays, set 0001 hex.
Actual data Specify the actual data in little-endian format. If 0001 hex is specified for an array,
specify the actual data in the same format as when you access a variable with the
data type of the elements of the array.
Response Service Data: There is no response service data.
Request Path Data
Request Service Data
Data Type USINT
AddInfo Length USINT
(AddInfo)
Num of Element (L)
(H)
Actual data*
Variable name specification
Data type of variable to write
Additional information: Field length in bytes
Additional information: CRC value of structure
UINT

Omron Sysmac NJ-series Specifications

General

Brand	Omron
Model	Sysmac NJ-series
Category	Computer Hardware
Language	English