SICK MITSUBISHI ELECTRIC MELSEC iQ-F FX5, User Manual

Page: 142 / 176

140
APPX
Appendix 5 Buffer Memory
Input signals
The status of a safety extension module can be checked in the buffer memory.
■
Buffer memory address
The buffer memory address of this area is as follows.
■ List of input signals
■
Module READY
It turns ON after the completion of the initial processing of the CPU module when the power of the module is turned ON or
reset.
■
Module Safety READY
It turns ON after the completion of the initial processing of the safety extension module when the power of the module is
turned ON or reset.
When the safety control diagnostic information is not updated correctly, Module READY is turned OFF.
■
Error flag
It turns ON when an error occurs in a safety extension module (including a safety expansion module).
Safety control
Number of units connected
The number of connected safety extension modules is stored.
■
Buffer memory address
The buffer memory address of this area is as follows.
Buffer memory name Address
Input signals 69
Buffer memory Description
b0 Module READY
b1 Module Safety READY
b2 to 14 Unavailable
b15 Error flag
Buffer memory name Address
Number of units connected 71
OFF
ON
'Latest error code' (Un\G0)
'Error flag'
(Un\G69, b15)
Error
0