Mitsubishi Electric MELSEC iQ-R Series User Manual page 90

■ Master station (safety station) and remote station (safety station)
The safety device status of the Safety CPU on the master station (safety station) is reflected to the safety output of the remote
station (safety station). The safety input status of the remote station (safety station) is stored in the Safety CPU on the master
station (safety station).
SA\M0
Ò
SA\Y
Output from the master station (safety station)
 The safety device of the Safety CPU on the master station (safety station) turns on.
 The safety device status of the Safety CPU on the master station (safety station) is stored in the Safety output on the remote station (safety station) by safety
data transfer.
 The safety output status of the remote station (safety station) is output to an external device.
Input from the remote station (safety station)
 The status of the external device is stored in the safety input of the remote station (safety station).
 The safety device status of the Safety input on the remote station (safety station) is stored in the Safety CPU on the master station (safety station) by safety
data transfer.
Setting method
Set safety communications in "Safety Communication Setting" under "Basic Settings". (Page 104 Safety Communication
Setting)
Precautions
• If an error occurs in safety communications, safety data from the faulty station is cleared.
• A safety connection with the safety station can be established only while data link is performed after configuring the "Safety
Communication Setting" under "Basic Settings" of the master station. The data link status can be checked in 'Data link
status of each station' (SW00B0 to SW00B7).
• Note that stations not set in "Network Configuration Settings" under "Basic Settings" of the master station (safety station)
and reserved stations cannot perform safety communications.
• Safety communications cannot be performed among the Motion modules set in the same control CPU.
• This function may detect an error and stop safety communications if a parameter is written to the control CPU of the Motion
module during safety communications.
• Safety communications cannot be performed among the safety stations when the IP address and model name of the
communication destination set to the safety station are different from the actual system configuration.
• Safety communications cannot be performed with a remote station (safety station) if the safety approval code set in the
master station (safety station) and it in the remote station (safety station) are not match.
• An error occurs when a parameter is written to the Safety CPU because the Safety CPU does not support the inter-module
synchronization function.
• A remote device test cannot be used for a safety remote I/O module.
1 FUNCTIONS
88
1.7 Safety Communications
Safety CPU
Master station
(safety station)
Safety device
Safety cycle Safety cycle
No.0
Ó
Ö
No.1
Safety output
Ô
External device
Safety input
Õ
External device