Mitsubishi Electric MELSEC-L SERIES Basic User Manual page 35

Melsec-l ethernet interface module
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Device
number
Initial normal completion signal
X19
(ON: Normal completion, OFF: -)
Initial abnormal end signal
X1A
(ON: Abnormal end, OFF: -)
X1B
Use prohibited
COM.ERR. LED lit confirmation
X1C
(ON: lit, OFF: off)
Predefined protocol ready
X1D
(ON: Ready, OFF: -)
X1E
Use prohibited
Watchdog timer error detection
X1F
(ON: Watchdog timer error, OFF: -)
Do not use any use prohibited signal as an I/O signal to the CPU module. Doing so may cause malfunction of the
programmable controller system.
Remark
The I/O signals listed in this section are mainly applied when QnA series module programs are used. For the L series, the
I/O signals for intelligent function modules are turned on and off with dedicated instructions. When QnA series module
programs are used, it is recommended to replace the signals with the dedicated instructions described in the section that
describes the corresponding functions.
Signal name
Device
number
Initial request signal
Y19
(ON: At request, OFF: -)
Y1A
Use prohibited
Y1B
Use prohibited
Y1C
Use prohibited
Y1D
Use prohibited
Y1E
Use prohibited
Y1F
Use prohibited
CHAPTER 3 SPECIFICATIONS
Signal name
33
3

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