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4 SETUP AND PROCEDURE BEFORE STARTING THE OPERATION
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(2) Detailed settings
The error time output mode and H/W error time PLC operation mode are set in
the detailed settings for the intelligent function module.
(a) Error time output mode
Sets to either clear or hold the module output status when a PLC CPU stop
error occurs.
• Clear : Tuns OFF all of the coincidence signal external outputs.
• Hold : Holds the same ON/OFF status before the CPU is stopped for the
coincidence signal external outputs.
(b) H/W error time PLC operating mode
Sets to either stop or continue the PLC CPU operation for each module
when an intelligent function module error (SP.UNIT DOWN) is detected.
• Stop
• Continue : PLC CPU continues the execution of the programs for
An intelligent function module error in the QD62(E/D) is detected when the
Unit READY flag is not in the READY state due to a module hardware
failure.
: PLC CPU stops operation.
modules other than those in which an error was detected.
MELSEC-Q
4 - 15
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