Omron K7DD User Manual page 127

 Error Code:
Completion
code
H'01
H'02
H'03
H'04
 No Response:
In the following cases, the received command is not processed and no response is returned,
resulting in a timeout at the host system.
• The slave address in the command does not match the unit number.
• A parity error, framing error, or overrun error occurred due to a problem such as a transfer error.
• A CRC-16 code error occurred in the received command frame.
• There was an interval of 3.5 character times minimum between data packets that make up the
command frame.
• A command frame exceeding the communication buffer was received.
• A command frame of the minimum size was not received (less than 4 bytes).
• The length of a command exceeded the minimum/maximum range determined by each function
code.
In the following case, the received command is processed but no response is given.
• Broadcasting is specified (slave address: H'00)
Power Line Data Generator User's Manual (N233)
Name
Function code error An unsupported function code was received.
Variable address error The variable address was accessed in excess of H'FFFF.
Variable data error • The number of elements specified in the command frame data
• The byte count is not two times the number of elements specified
• The number of elements exceeds the allowed range.
• The write data specified in the command frame data is out of the
Operation error No response can be made in this system state.
Description
and the number of data do not match.
in the command frame data.
setting range.
7 Communications
7 - 11
7