6ES5922-3UA11 - CPU - SIEMENS

The S5-135U/155U programmable controller comprises a central controller (CC) and, depending on the configuration, one or more expansion units (EUs). Expansion units are connected when there are unsufficient central controller slots, or when you wish to position I/O modules as closely to the process as possible. 

With the central controllers and some expansion units, the modules are directly powered and cooled via the integrated power supply plug-in module. With all other expansion units, power is supplied via the IMs from the CC.

The modular packaging technique allows variable configuration of a CC with modules and its adaptation to the particular automation task.

The various modules carry out the following tasks:

• CPU

The CPU processes the input signals of the PLC according to the user program, and emits the results as output signals. The following CPUs can be used in the S5-135U/155U PLC

- CPU 948

- CPU 928B

- CPU 928

- CPU 922 

• Coordinators

By using a coordinator, you can configure the S5-135U/155U as a multiprocessor controller with up to four task-oriented CPUs in different combinations. Each CPU processes its program independently of the others.

• I/O modules

The I/O modules provide the link to the process.

• IP module

The intelligent I/O modules (signal pre-processing modules) off-load the CPU by independently executing compute-intensive tasks such as controlling, counting and positioning.

• Interface modules (IMs)

If your CC has insufficient slots to insert all the modules required for your automation task, you can increase the number of modules with expansion units. The IM modules provide the link between central controller and expansion units.

• CP module

CP modules allow point-to-point communication for data interchange between two PLCs, between one PLC and an external unit, between one PLC and a SINEC bus system or between one PLC and the COROS operator control and process monitoring system. You can use additional CP modules, such as the CP 581, CP 516, for the acquisition, storage, administration and preprocessing of large volumes of data.

• VP module

VP modules enable the local acquisition and displaying (visualization) of process data of a PLC of the SIMATIC S5.

The S5-135U / 155U programmable controller is part of the SIMATIC S5 family of programmable controllers. This device can be used in single-processor and multi-processor architecture, with a maximum of four CPUs. In a multiprocessor configuration, each CPU processes its own user program, independently of the other CPUs.

The S5-135U / 155U programmable logic controllers consist of a base frame (ZG) and - if necessary - one or more expansion frames (EG). Expansion chassis are used when the number of slots available in the base chassis is not enough to accommodate all the necessary cards.

For the ZG - EG and EG - EG coupling, there are different couplers (IM). It is thus possible to install the EGs in the immediate vicinity of the ZG (centralized expansion configuration) or to deport them at a greater or lesser distance (decentralized expansion configuration). A mix of these two types of assembly is also possible since EG can be connected in a centralized configuration to a decentralized EG

The S5-135U / 155U base chassis can accommodate the following CPUs:
- CPU 948,
- CPU 928B,
- CPU 928,
- CPU 922.
A programmable controller in which a CPU 948 is mounted is an S5-155U. A PLC configured with a CPU 928B, 928, or 922 (but without a CPU 948) is an S5-135U.

In the CPU 948, 928B-3UB21 and 928-3UA21, you can use a flash EPROM memory card on which your user program is stored. In the case of CPU 928B, 928 and 922, this storage is carried out by means of memory cartridges (RAM or EPROM).

The CPU 948 and 928B have a second serial interface in addition to the PG interface. An interface module is required to allow physical adaptation.