Siemens SIMATIC CPU 410 System Manual page 240

Synchronization modules
14.1 Synchronization modules for the CPU 410.
Mechanical configuration
Figure 14-1
Risk of injury.
The synchronization module is equipped with a laser system and is classified as a "CLASS
1 LASER PRODUCT" according to IEC 60825–1.
Avoid direct contact with the laser beam. Do not open the housing. Always observe the
information provided in this manual, and keep the manual to hand as a reference.
OB 82
In redundant mode, the operating system of the CPU calls OB82 in case of a Snyc link fault.
You can display the following channel-specific diagnostic data in the Module state tab dialog
for the selected synchronization module:
● Overtemperature
The synchronization module is too hot.
● Fiber-optic error
The sender of the electro-optical component has reached the end of its service life.
240
Synchronization modules 6ES7 960-1AA08-0XA0 and 6ES7 960-1Ax06-0xA0
CAUTION
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC