Chapter 6 Communication mode
6 - 85
Error in Hi-Protocol mode
The detected error in Hi-Protocol operation will be indicated in high byte of WX us2 and 3. (The operation will
continue if the error level is not serious.) If the next task code is received properly, the error code WX us2 and 3
will be cleared.
If the TRNS command is executed with some missoperation in Hi-Protocol mode, the return code of TRNS 9
command will be “Illegal command specifying error (Error code H50)”.
Table 6.24 Hi-Protocol mode error during operation
EH-SIO operation has been stopped due to the error detection of
CPU module (L.RES ON) was done.
MPU of EH-SIO can’t operate according the system program
anymore, EH-SIO has detected watch dog timer error of MPU.
EH-SIO has detected an error of system OS.
TRNS 9 command has been used for the port specified as
SLAVE function or easy data link function.
Parity error has been detected in the received data by EH-SIO.
Framing error has been detected in the received data by EH-SIO.
Over run error has been detected in the received data by EH-SIO.
Check code error has been detected in the received data by
EH-SIO.
EH-SIO could not complete the receive operation within the
specified time.
EH-SIO could not complete the send operation within the
specified time. (the monitoring time interval is fixed and it is not
possible to change this time interval.)
Receiving
illegal message
EH-SIO receives message data including illegal data.
« Note »
EH-SIO is checking parity error and framing error in every byte. In case of Hi-Protocol mode, since only the
newest error is indicated, “parity error” and “framing error” can be overwritten by newest error such as “chek code
error”. So, if the “check code error” is detected, check also transmit character structure and transmit speed.
To Next Page
Loading...
