Mitsubishi Electric R60AD8-G User Manual page 260

Safety module operation
With "Safety Module Operation" in the engineering tool, enable the R60AD8-G (Main) so that it can be used in SIL2 mode.
Before performing safety module operation, pay attention to the following points.
• Ensure that the engineering tool is directly connected to the SIL2 Process CPU in the control system
(specify "No Specification" for the engineering tool connection destination setting) before starting "Safety
Module Operation". Do not connect the engineering tool directly to the SIL2 Process CPU in the standby
system. Depending on the system configuration, performing the safety module operation with the
engineering tool directly connected to the SIL2 Process CPU in the standby system may cause a timeout. A
time that triggers a timeout is Set time in "Check at Communication Time" (second)  3. (The default value
for "Check at Communication Time" is 30 seconds.) For details on "Check at Communication Time", refer to
the GX Works3 Operating Manual.
• Safety module operation is available only when the safety operation mode of the SIL2 Process CPU is set to
TEST MODE. Ensure that the safety operation mode of the SIL2 Process CPU is set to TEST MODE before
performing safety module operation. For details on the TEST MODE, refer to the MELSEC iQ-R CPU
Module User's Manual (Application).
1.
Open a project on the SIL2 Process CPU side.
2.
Check that the safety operation mode of the SIL2 Process CPU is set to TEST MODE.
[Diagnostics]  [Module Diagnostics (CPU Diagnostics)]
3.
If the safety operation mode is SAFETY MODE, change it to TEST MODE.
[Online]  [Safety PLC Operation]  [Switch Safety Operation Mode]
4.
Start the "Safety Module Operation" window.
[Online]  [Safety PLC Operation]  [Safety Module Operation]
5.
Select the master/local module in the network where safety module operation is performed. The R60AD8-G (Main) to be
enabled is displayed.
10 FUNCTIONS
258
10.1 SIL2 Mode