Mitsubishi Electric Melsec Q Series Programming Manual page 341

5 OPERATION CONTROL PROGRAMS
[Errors]
(4) The following modules can be used.
• Analogue input (L60AD4, L60AD4-2GH)
• Analogue output (L60DA4)
• High-speed counter (LD62, LD62D)
(5) Do resetting of the complete bit device by the user program.
(6) Another RTO instruction cannot be processed until RTO instruction is executed
and a complete bit device is turned ON. When RTO instruction is executed again,
before RTO instruction is executed and complete bit device is turned ON, the RTO
instruction executed later becomes an error.
(7) To write 3 words or more of data to the SSCNET /H head module, 2 words of
writing data are written each time and then repeated. This means that data
specified with 3 words or more is not written at the same timing. For data that
needs to be written at the same timing use the refresh of the cyclic transmission of
the SSCNET /H head module word device (Buffer memory of SSCNET /H head
module and intelligent function module).
Refer to the manual of SSCNET /H head module for details.
(1) An operation error will occur if:
• Number of words (n) to be written is outside the range of 1 to 240.
• The target SSCNET /H head module axis number specified with (D1) is
outside the range of 1 to 8.
• The target SSCNET /H head module is not connected at instruction execution.
• Start device No. (S) which writing data are stored + number of words (n) to be
written is outside the device range.
• (S) is a bit device and device number is not a multiple of 16.
• PX/PY is set in (S) to (S)+(n-1).
• RTO instruction was executed again before the RTO instruction is executed and
complete bit device is turned ON.
(2) Abnormal completion (D4+1) of complete device turns ON if:
• Abnormalities of the target SSCNET /H head module were detected at the
instruction execution.
• First I/O No. of the intelligent function module specified with (D2) differ from the
intelligent function module.
• The first address of the buffer memory of the intelligent function module
specified with (D3) is outside the buffer memory range.
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