OCRFH/FZ5 Processing Item Function Reference Manual
481
2
Inspecting and Measuring
Output of Character string with EtherNet/IP Message Communications
In EtherNet/IP message communication, output of character string is possible using UNITDATA command which
acquires the measurement value.
Outputs the character string data which is measured with OCR and NULL(0x00).
Reference: Communicating with the Sensor Controller with
EtherNet/IP Message Communications, Non-
procedure Communications and UNITDATA or UD in Non-procedure Command Details in Vision System FH/
FZ5 Series User’s Manual for Communications Settings (Z342).
1 Output Format
Take the following case as an example. Send UNITDATA command. Reading character string is 32.
Command, Response, and Data Output area are the followings.
Described example is only a part of Attribute.
Command (PLC to Sensor Controller)
Specify the command character string equivalent to a non-procedure command.
Attach NULL(0x00) at the end o
f the character string. No line feed code is required.
The size of the send data includes the NULL(0x00
) at the end of the character string.
Response (Sensor Controller to PLC)
Character string data equivalent to the Non-procedure command reception character string is returned.
Null (0x00) is inserted in the reception character string delimiter section.
The size of the reception data includes the final NULL(0x00).
• If no character string, refer to the following.
• When output the multiple lines, change the external
reference table No. of UNITDATA, and then read the
character strings.
UTT
External reference table
ANDI
Processing Unit No. (Max. 4 digit)
NULL(0x00)
A
0123456789…UV(Character string data) NULL(0x00) O(0x4F) K(0x4b) NULL(0x00)
NULL(0x00) O(0x4F) K(0x4b) NULL(0x00)
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