APPX
Appendix 2 I/O Signals
335
A
When the network type is "Q Compatible Ethernet"
With the Q-compatible Ethernet, the same I/O signals as the MELSEC-Q series Ethernet interface module can be used
except in some cases.
The following table lists the differences of the RJ71EN71 and MELSEC-Q series Ethernet interface modules.
*1 This signal turns on when the ERR LED or the P ERR LED of P1 is on or flashing.
*2 The details are listed below.
The ERR LED and the P ERR LED of P1 turn off.
An off request continues to be issued while this signal is on. (Does not light while on.)
The event is registered in event history when off process is executed.
This signal cannot be turned off during major error.
If the error occurs again after turning on and off, the ERR LED or P ERR LED will turn on or flash according to the details of the error.
Currently occurring error and error history information is not cleared.
For details on the other I/O signals, refer to the following.
Q Corresponding Ethernet Interface Module User's Manual (Basic)
Do not use (turn on) any "use prohibited" signals as an input or output signal to the CPU module. Doing so
may cause malfunction of the programmable controller system.
Device number RJ71EN71 QJ71E71-100
X1C ERR LED lit confirmation
*1
(On: Lit, Off: )
COM.ERR. LED lit confirmation
(On: Lit, Off: )
Y17 ERR LED off request
*2
(On: At off request, Off: -)
COM.ERR. LED off request
(On: At off request, Off: -)
Y19 Use prohibited Initial request signal
(On: At request, Off: )