Self-Check During System Run Start; Self-Check During Scan - Toshiba V Series User Manual

Chapter 6 Troubleshooting
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(2) Self-check during RUN start
Table 6-4 Self-check during system RUN start
Check item Self-check
I/O bus error Checks that the I/O bus
is normal.
Basic unit Checks that the CPU
configuration module configuration is
identical to that
registered in the
engineering tool.
I/O module Checks that the I/O
configuration allocation data
coincides with I/O
module
implementation.
Registered I/O Checks that the
interrupt module module allocated in I/O
interrupt module
registration data is an
interrupt module.
Logical table Checks that module
error parameters are
registered correctly.
Scan cycle Checks that scan cycle
setting of scan tasks (SS/HS/
MS) is within allowable
range.
Validity of user Checks validity of the
program program operation unit
(POU) with BCC.

(3) Self-check during scan

Check item Self-check
I/O bus error Checks the
occurrence of errors
during I/O access.
Batch I/O parity Checks I/O parity
error error during batch I/
O.
Operation when
error is detected
Error down after
error entry
Error down after
error entry
Error down after
error entry
Error down after
error entry
Error down after
error entry
Error down after
error entry
Error down after
error entry
Table 6-5 Self-check during scan
Operation when error is
detected
Retries after error
entry. If the I/O bus is
normal, attention and
continues operation. If
the I/O bus is not
normal, degeneration
or error down.
Retries after error
entry. If the I/O bus is
normal, attention and
continues operation. If
the I/O bus is not
normal, degeneration
or error down
model 2000 Sequence Controller S2 User's Manual -Basic Hardware-
Operator action
Check cable connection
between I/O units and
installation of the I/O module. If
connection is normal, contact a
Toshiba agent.
Match the registered core unit
configuration with
implementation.
Match the registered I/O module
configuration with
implementation.
Match the registered I/O
interrupt modules to
implementation.
Check the logical table using the
tool, and reload the table.
Load system data including
programs from the tool, and
restart the system. Or, contact
a Toshiba agent.
Load programs from the tool,
and restart the system.
Operator action
Check cable connection
between I/O units and
installation of the I/O module.
If connection is normal,
contact a Toshiba agent.
Check cable connection and
installation of I/O module. If
connection is normal, replace
the I/O module or I/O cable.