WindO/I-NV4 User’s Manual 3-43
5 User Communication
3
Communication
RXD is selected as Type:
Address
number
Function Description
+1 Transmission Data Size (bytes) Stores the size of transmission data.
When the Error Information bit changes to 1, data is not transmitted, and the Transmission Completed
Device Address does not change to 1.
Address
number
Bit Function Cause Solution
+0
0 BCC error
The BCC that calculated the receive data did not match
the BCC that is appended to the receive data.
Check the transmission data
from the external device.
• The Calculation Start Position and Calculation End
Position are not stored in 1 frame.
• The Calculation End Position is set before Calculation
Start Position.
Change the Calculation
Start Position and
Calculation End Position
settings.
• When Calculation Type is Modbus ASCII (LCR), the
data size from Calculation Start Position to
Calculation End Position is odd bytes.
• The ASCII data contains data other than ASCII (30h
to 39h, 41h to 46h) data.
Change the Calculation Start
Position and Calculation End
Position settings and the
transmission data from the
external device.
1
Received Data
Size Error
The received data size of the data does not match that
of the specified receive command.
Check the transmission data
from the external device.
2
Registering
Constant Data
Error
The Constant (Character) or Constant
(Hexadecimal) set up with the receive command
does not match the receive data.
Check the transmission data
from the external device.
3
Registering
Constant Error
No data matches the registered setting of the
Registering Constant data.
Check the transmission data
from the external device.
4
Device Data
Conversion Error
• When data type is Device Address and
Conversion Type is ASCII to Hexadecimal, a
code other than 0 to 9 or A to F receives as data.
• When data type is Device Address and
Conversion Type is ASCII to Decimal, a code
other than 0 to 9 receives as data. Or the converted
data exceeds 65535.
Check the transmission data
from the external device.
5
Device Data
Reference
Device Error
When data type is Device Address and the Use
Reference Device Address check box is selected, the
device address in which the value of the Reference
Device Address is stored as offset has exceeded the valid
range. Or the number of words setting of the device
address is beyond the range of device address for which
data is stored.
Change the value of the
Reference Device Address
or the change the number
of words.
6
Terminal Code of
Receive Data
Miscompare Error
In the receive command whose trigger condition is
being satisfied, the start code matches while the
terminal code does not match.
Check the transmission data
from the external device.
7
Device Storing
Error
During the reception process of multiple received
commands, the total number of words of the next
device address to be stored exceeds 800 words.
•The stored device addresses that Type is Device
Address.
•Index device address whose Type is Registering
Constant (Character) or Registering Constant
(Hexadecimal).
Change settings so that the
total number of device
addresses used for storage
at one time does not
exceed 800 words.
Change settings so that the
trigger conditions for
several receive commands
are not satisfied, to reduce
the number of receive
commands that are
processed.
8 to 13
Reserved
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