Mitsubishi Electric MELSEC iQ-R04ENCPU, Руководство пользователя

Страница: 285 / 390

APPX
Appendix 2 I/O Signals
283
A
Appendix 2
I/O Signals
This section describes the I/O signals for the CPU module. The I/O signal assignment of when the start I/O number of the
master/local module is "0" is listed below.
List of I/O signals
The following table lists I/O signals. The device X is an input signal from the master/local module to the CPU module. The
device Y is an output signal from the CPU module to the master/local module.
Input signals
Output signals
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.
Details of I/O signals
Module failure (X0)
This signal is used to check the status of the master/local module.
• Off: Module normal
• On: Module failure
Own station data link status (X1)
This signal is used to check the data link status of the own station.
• Off: Data link stop
• On: Data link in progress
'Data link error status of own station' (SB0049) has the same signal, but when using it in a program, use either X1 or 'Data link
error status of own station' (SB0049) only. Also note that the on/off conditions for X1 and SB0049 are reversed. If an error
occurs, the cause of the fault can be checked by CC-Link IE Field Network diagnostics or 'Cause of data link stop' (SW0049).
Device No. Signal name
X0 Module failure
X1 Own station data link status
X2 Use prohibited
X3 Other stations data link status
X4 to XE Use prohibited
XF Module ready
X10 to X1F Use prohibited
Device No. Signal name
Y0 to Y1F Use prohibited
Module failure (X0)
Power-on
Module READY (XF)