YOKOGAWA UTAdvanced Series, User Manual

Page: 55 / 866

3-24
IM 05P07A01-01EN
3.2.4 Response Error Codes
The error code (EC1) and detailed error code (EC2) of the response are as follows.
Error Codes (EC1)
Error code Meaning Cause
02 Command error
• Command does not exist.
• Command cannot be executed.
03
Register
specification error
• Register name does not exist.
• Specification is incorrect when bits (I relay) are used on a word-by-word basis.
04
Setting value out
of range (during a
write)
• A character other than 0 or 1 is used for the bit setting.
• Annotation other than Hex (0 to 9, A to F) is specified for the word setting.
• The start position exceeds the address range in a read/save instruction, etc.
05
Data number value
out of range
• The specification of the number of bits, number of words, etc. exceeds the
specification range.
• The number of specified data or the number of parameters such as registers is
inconsistent.
06 Monitor error • The monitor was executed without specifying the monitor (WRS).
08 Parameter error
• The parameter is incorrect. (This occurs when there are no commas or
spaces.)
42 Checksum error • Sum value mismatch
43
Internal buffer
overflow
• Data more than the specified value (max. size of internal buffer: 512 [bytes])
was received.
44
Reception inter-
character timer
timeout
• The end character or ETX is not received.
Detailed Error Codes (EC2)
Error code
(EC1)
Meaning Detailed error code (EC2)
03
Register
specification error
Error parameter No. (Hex)
Sequence No. of parameter where the error first occurred counting from the start
of the parameter.
Example) Register name specification error
↓
[STX]01010WRW 02 D0043,3F80,A0044,0000 [ETX][CR]
Parameter No. 1 2 3 4 5
[STX]0101ER0304WRW[ETX][CR]
In this case, EC1=03 and EC2=04
04
Setting value out of
range
05
Data number value
out of range
08 Parameter error
In the case of errors other than EC1 above, EC2 is meaningless, and “00” is returned as
the response.

Priority of Error Codes
Priority Error code EC1
High 44
43
42
02
Low 03,04,05,06,08
When no response is returned
(1) Retransmission error (overrun, framing, parity)
(2) When the communication address in the command is wrong (including broadcast
specification)
(3) When the CPU No. in the command is not “01”
3.2 PC Link Communication