10 FUNCTIONS
10.1 SIL2 Mode
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Safety module operation
With "Safety Module Operation" in the engineering tool, enable the RX40NC6B (Main) or the RY40PT5B (Main) so that it can
be used in SIL2 mode.
When performing the safety module operation, observe the following.
• 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.
• Ensure that the safety operation mode is set to TEST MODE for the SIL2 Process CPU before performing
the safety module operation. For details on 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.
Start the "Safety Module Operation" window.
[Online]
[Safety PLC Operation]
[Safety Module Operation]
3.
Select the master/local module in the network where safety module operation is performed. The module (RX40NC6B
(Main) or RY40PT5B (Main)) to be enabled is displayed.
4.
Select the check box for the RX40NC6B (Main) or the RY40PT5B (Main) to be enabled, and click the [Update] button.
The current enabled/disabled status of the safety module is displayed for "Module Status".
Module Status
Description
The information is not acquired.
Valid
The safety module is enabled and the configured parameters are valid.
Invalid
The safety module is not enabled and the configured parameters are not valid.
Valid (Reset Wait)
The safety module has just been enabled. In this state, the I/O module with diagnostic functions needs to be reset, and the module
status will be enabled after the reset. At this time, the ALM LED flashes every 0.4 seconds.
Invalid (Reset Wait)
The module has just been disabled. In this state, the I/O module with diagnostic functions needs to be reset, and the module status
will be disabled after the reset. At this time, the ALM LED flashes every 0.4 seconds.
Timeout
A timeout occurred because no response was returned from the target module. Check the settings or status of the target module.
• Is the module is set to SIL2 mode?
• Has an error occurred?
Содержание MELSEC iQ-RX40NC6B
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