Hitachi EH-150 Series - Error Detection in Hi-Protocol Mode

Chapter 6 Communication mode
6 - 84
Hi-Protocol
6.5.5 Error detection in Hi-Protocol mode
The indication method of detected error in Hi-Protocol mode operation is different from the other mode. This
reason is because of Hi-Protocol mode dose not require the TRNS 9 command except initial setting.
 Error in initial setting
Detail error information can be confirmed by refering the execution result of TRNS 9 command of t parameter,
return code of s parameter and data reciving area. In case of error bit (t+2) is turned ON after execution of TRNS 9
command, there is some detected error.
Table 6.23 Hi-Protocol mode initial setting error table
No.
Error
Code
Name
Error
level
Detail contents
1
HFF
CPU error
---
EH-SIO operation has been stopped due to the error detection of
CPU module (L.RES ON) was done.
2
---
Watch dog timer error
Fatal
Failure
MPU of EH-SIO can’t operate according the system program
anymore, EH-SIO has detected watch dog timer error of MPU.
3
H03
OS system error
Fatal
Failure
EH-SIO has detected an error of system OS.
4
H51
Over flow error of
number of specified
functions
Warning
There is no EH-SIO mounted, over flow of number of specified
functions such as slave function or easy data link function.
5
H81
Non-supported
command error
Warning
- Non-supported command by EH-SIO has been specified.
- Initial setting is duplicated. (more than twice execution of initial
setting)
6
H82
Initial setting error
Warning
- The parameter of initial setting was illegal.
- Initial setting is not completed yet.