YOKOGAWA UTAdvanced Series, User Manual

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3-22
IM 05P07A01-01EN
(7) Checksum
The ASCII codes of text from the character following STX up to before the checksum
are added one byte at a time. The lowermost byte of the addition result is removed,
and an ASCII text string of two bytes expressed in Hex is taken to be the checksum.
This column is required only when performing PC link communication with a
checksum.
When performing PC link communication without a checksum, this ASCII code 2-byte
area is not required.
(8) ETX (End of Text)
This indicates the end of the command. ASCII code is 03 in hexadecimal.
(9) CR (Carriage Return)
This indicates the end of the command line. ASCII code is 0D in hexadecimal.
Note
“STX,” “ETX,” and “CR” are required for PC link communication commands. Communication
cannot be performed normally if you forget to append these codes or make a mistake in their
programmed order.

Command format for communication
Example: When setting a target setpoint “50.0,” the host computer sends the value “01F4”
as command data which is a hexadecimal value of “500” (50.0 exciuding the decimal
point) (this is also true for setting 5.00 or 500).
Target setpoint: 50.0
Data to be sent from the host computer: 500
Command data: 01F4
* The UTAdvanced determine the decimal point position for “500” by
the decimal point position parameter setting (in this case, P.DP = 1).
UTAdvanced side
Response data from
UTAdvanced: 01F4
3.2 PC Link Communication