Hitachi S10mini D, Руководство по оборудованию

Страница: 122 / 132

9 MAINTENANCE
- 104 -
Error messages (2/3)
Error Message Explanation Action
If
∆∆
is one of the values 10-4F, the error is an
extension memory protection error.
Handle the PROT ERR error according to the
information supplied under “Diagnosis by
checking the power indicating LED status and
the message in the indicator” on page 102.
Then, if the same error recurs, replace the
extension memory. EX
∆∆
PRT
∆∆
: See the next
page.(*)
If
∆∆
is a value other than 10-4F, the error is a
protection error detected during writing by the CPU
module to the optional module’s internal memory.
Press the RESET switch on the CPU module.
Then, if the same error recurs, replace the
optional module.
EXMD PRT
(displayed along
with ROM
IDLE) The error is a protection error detected during writing
by the CPU module to the extension memory or the
optional module’s internal memory. Handle the ROM IDLE error according to the
information supplied under “Diagnosis by
checking the power indicating LED status and
the message in the indicator” on page 102.
Then, if the same error recurs, replace the
optional module.
SMD PTY Ladder program memory parity error
SMD INVL Illegal instruction detected in the ladder program
(ladder program error)
SMD CERR Ladder program table abnormality (detected during
initial diagnosis on resetting)
SMD PERR Ladder program error (detected during initial diagnosis
on resetting)
(1) Press the RESET switch on the CPU
module.
(2) Turn on the power switch on the power
supply module again.
If the error condition persists even after the
above procedure is performed, clear all the
memory. For information on how to clear the
memory, see pages 106 through 109.
If clearing of the memory does not solve the
problem, replace the CPU module.
ADDR ERR Address error occurred Check whether the stack capacity for a user
task is sufficient. Reload the user task.
ILG INST Illegal instruction detected Check whether the user task is successfully
loaded. Reload the user task if it has not been
loaded successfully.
INV INT Undefined exception occurred Check whether the user task is successfully
loaded. Reload the user task if it has not been
loaded successfully. Check for an instruction
(e.g. CHK instruction) that causes the
exception. Check whether the destination of
the jump instruction is correct.
ZERO DIV Divide by zero Check the task that caused the error.
PRIV VIO Violation of privileged instruction detected Check whether the error-causing user task
jumped to the program area.
RSV ERR Unreleased resource occupied by the RSERV macro Correct the user task to end the task after
releasing the resource occupied by the RSERV
macro by the FREE macro.