I/O Operations For Major Fault Level Controller Errors And I/O Refreshing With Specified Values6-17; I/O Operations For Major Fault Level Controller Errors And I/O Refreshing With Specified Values - Omron NX701-17 Series User Manual

6 Process Data Communications and SDO Communications
6-1-5 I/O Operations for Major Fault Level Controller Errors and I/O
Refreshing with Specified Values
I/O Operations for Major Fault Level Controller Errors
If the NJ/NX-series CPU Unit detects a major fault level Controller error, all slave outputs will retain the
process data values from before operation stopped in Operational state. Then the slaves will move to
Safe-Operational state and the slave settings will control the slave outputs. The inputs from the slaves
will retain the process data values from before operation stopped. Message communications are con-
*
tinued.
NJ/NX-series CPU Unit
When a major fault
level Controller error is
detected
Input data: Values before
operation stopped.
Output data:
Values before
operation stopped.
When a major fault level Controller error occurs, the values of the variables are not output to the slaves
even if they are initialized. The slave settings will control the slave outputs.
Values of variables
Slave state
Inputs from slaves
Slave output values
* The following errors may occur when the slave enters to the Safe-Operational state.
• Slave Application Error
• Slave Initialization Error
The formula and the maximum time required for all the slaves to enter Safe-Operational state and for
the output to reach to the value set from the slave settings are shown below. This formula applies to
only OMRON slaves.
6-16
Slave
Values before operation
stopped
When Safe-operational
state is entered, the slave
settings control the outputs.
Operation stopped.
Values before
Initial
operation stopped
values
Operational Safe-operational
Values before
→→→→→→→→→→→→→→→→→→→→→→→→→→→→
operation stopped
Values before
operation stopped
Slave
Values before operation
stopped
When Safe-operational
state is entered, the slave
settings control the outputs.
Default setting→→→→→→→→→→→→→
* Safe-operational→→
According
According to settings→→→→→→→→
to settings
When all slaves have entered
Safe-operational state, the slave
Gradually change. settings control all of the outputs.
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)