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Description of parameters
7) Error code
If any error is found in the data received by the converter, its error definition is sent back to the computer together with
the NAK code.
Error
Error Item
Code
H0
Computer NAK error
H1
Parity error
H2
Sum check error
H3
Protocol error
H4
Framing error
H5
Overrun error
H6
H7
Character error
H8
H9
HA
Mode error
HB
Instruction code error
HC
Data range error
HD
HE
HF
(5) Response time
Computer
Converter
[Formula for data transmission time]
1
Communication speed (bps)
Communication specifications
Name
Stop bit length
Data length
Present
Parity check
Absent
In addition to the above, 1 start bit is necessary.
Minimum number of total bits.................9 bits
Maximum number of total bits.................12 bits
102
The number of errors consecutively detected in communication
request data from the computer is greater than permissible
number of retries.
The parity check result does not match the specified parity.
The sum check code in the computer does not match that of the
data received by the converter.
The data received by the converter has a grammatical mistake.
Or, data receive is not completed within the predetermined time.
CR or LF is not as set in the parameter.
The stop bit length differs from the initial setting.
New data has been sent by the computer before the converter
completes receiving the preceding data.
The character received is invalid (other than 0 to 9, A to F, control
code).
Parameter write was attempted in other than the computer link
operation mode, when the operation command source is not
present, or when parameter write is disabled.
The specified instruction code does not exist.
Invalid data has been specified for parameter write, etc.
Data sending time (refer to the following formula)
Converter data processing time
Converter
Computer
Data sending time (refer to the following formula)
Number of data characters
(Refer to page 99)
Number of Bits
1 bit
2 bits
7 bits
8 bits
1 bit
0
Error Description
Waiting time
(setting
10ms)
Time
10ms or more necessary
Communication
(Total number of bits)
(Refer to the following.)
Data check time
Item
Various monitors
Parameter read/write,
Parameter clear / all clear
Reset command
Converter Operation
If errors occur consecutively
and exceed the number of the
permissible number of retries
(Pr. 121), the converter
outputs the alarm (LF).
Does not accept the received
data.
Does not accept the received
data.
Data check time
(depends on the
instruction code (see the
following table))
= data transmission time (s)
Check Time
< 12ms
< 30ms
< 5s
No answer
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