Safety Communication Function; System Using The Safety Cpu - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

1.8

Safety Communication Function

This section describes the safety communication function.

System using the Safety CPU

This section describes safety communications performed in the system using the Safety CPU.
Following modules are required for the system using the Safety CPU.
• Safety CPU
• Safety function module
• The RJ71GF11-T2 with a firmware version of "06" or later
The safety communication function cannot be used in a system containing a submaster station.
Communications with safety stations
This function establishes a safety connection and enables one-on-one safety communications periodically between safety
stations in the same network.
The safety device of the Safety CPU is used for data communication.
Whether a safety connection is established or not can be checked in 'Safety refresh communication status of each safety
connection (1st module)' (SA\SD1008 to SA\SD1015) of the Safety CPU.
*1 Safety special register areas for the first RJ71GF11-T2. For safety special register areas for the second or later RJ71GF11-T2, refer to
the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
■Stations supporting safety communications
Safety communications can be performed between the following stations (safety stations).
• Master station (safety station) (1)  local station (safety station) (2) (4)
• Master station (safety station) (1)  remote device station (safety station) (3)
• Local station (safety station) (2)  local station (safety station) (4)
(1)
(2)
Safety communications
When safety communications with the intelligent device station are performed, configure a system using the
SIL2 Process CPU. ( Page 112 System using the SIL2 Process CPU)
A system can be configured in combination with MELSEC-QS series modules (5) and standard stations (6) in
one network. However, safety communications cannot be performed. Only standard communications can be
performed.
1 FUNCTIONS
108
1.8 Safety Communication Function
(3) (4)
Standard communications
*1
(5) (6)