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3 sending data in multi-head mode, Communication format, Error code settings – KEYENCE N-410 User Manual

Page 94: Sending data in multi-head mode -10, Communication format -10 error code settings -10, Sending data in multi-head mode, Caution

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Sending Data in Multi-head Mode

Communication Format

The following communication formats are available.

When an ID number is appended

mm : ID numbers (0 to 31)
nnnn : Data size (4 bytes) : nnnn is indicated with the sum of the numbers of the characters of

(1) and (2).

Data : Data sent from the head

• Read data
• ERROR (Read error)
• OVER (Buffer overflow)
• ERRmm (mm: Error code)

When an ID number is not appended

The ID number of the head connected (%Pmm-) is deleted.
Select this format when it is not necessary to know which head read the data.

nnnn : Data size (4 bytes) : nnnn is indicated with the sum of the numbers of the characters of

(1) and (2).

Header/Delimiter

The following types can be selected for a header/delimiter.

Header

:

/

/ None

Delimiter :

/

/

It is also possible to change up to 5 free characters.

Error Code Settings

Error codes are sent when BL/SR/RF Series devices connected to the N-410 cannot read
data.This can be set to any string of up to eight characters. However, it is recommended that you
use the default settings. The default settings are as follows.

• Error code setting: ERROR

N-410 error codes can be set to any string of characters. However, do not
change the error codes on the BL/SR/RF Series devices.

Header

Delimiter

(Data)

nnnn

(1)

(2)

mm

%P

Header

Delimiter

(Data)

nnnn

(1)

(2)

ESC

STX

CR

CR LF

ETX

Caution