6ES5135-3KB13 - Rack - SIEMENS

The 135U/155U central controller can be used optionally for the construction of a S5 135U, S5 155U or S5 155H programmable controller.

Two 135/155U central controllers are required for a S5 155H programmable controller

The 135U/155U central controller comprises:
- 21 free slots
- 1 power supply chassis with built in fan S5-135U, S5-155U
Depending on the extent of the automation task, the central controller can be equipped with the following CPUs:
- CPU 948 (max. 4)
- CPU 928B (max. 4) S CPU 928 (max. 4)
- CPU 922 (max. 4)

All CPUs can also operate jointly in multiprocessor mode. When more than one of these central modules is used a 923A/923C coordinator is required.

S5-155H
One CPU 948R can be used per central controller.

Power supply chassis
- Redundant two out of three fan concept;
Should one fan cease operating the speed of the other fans is increased thus enabling the programmable controller to continue operation. The defective fan can be replaced while the controller is in operation
- Redundant one out of two battery concept;
In the case of a failure of the main battery (Li battery) the accu battery switches on automatically for a period of three weeks
- Mains buffering to NAMUR: 20 ms
- Enhanced electromagnetic compatibility (EMC)