GF54.21-D-5005H Parameterizable Special Module (PSM) Control Unit Component Description

GF54.21-D-5005H Parameterizable Special Module (PSM) Control Unit Component Description

- with CODE (ED5) Parameterizable special module (PSM)


- with CODE (ED8) Preinstallation for parameterizable special module (PSM)







Shown on model 906
N26/15 PSM control unit

Location
The PSM control unit is located in the driver seat box.
The PSM control unit is installed on vehicles with code (ED5) Parameterizable special module (PSM).
Only the PSM control unit CAN B preinstallation connector is fitted on vehicles with code (ED8) Preinstallation for parameterizable special module (PSM).







Shown on model 639
N26/15 PSM control unit

Location
The PSM control unit is located above the cable passage in the firewall.

Task
The task of the PSM control unit is to enable body manufacturers (ABH) to access vehicle information as well as to ensure that certain vehicle functions are available.
These vehicle functions can be merged into the following groups:
- Conversion of information from the Controller Area Network bus class B (interior) (CAN B) to digital and analog outputs of the PSM control unit as well as to the body manufacturer Controller Area Network bus Class C (CAN Body manufacturer). In addition the CAN B information can also be used for an internal application in the PSM control unit and can thus influence the output of CAN B signals.
- Conversion of information from digital and analog inputs of the PSM control unit and from the CAN Body manufacturer to CAN B as well as to discrete outputs and thus control of vehicle functions.
- Internal processing of signals in the PSM control unit by means of integrated programmable logic controller (SPS).
- Control of various vehicle functions corresponding to parameterization, as stated in the following as an example:
- Working speed control (model 906)
- Functions of tilting/sliding roof (SHD)
- Functions of rear sliding roof unit
- Functions of rotary light switch







Design
1 Voltage supply
3 Bidirectional interface
4 Analog or digital inputs
5 Positive active inputs
6 Ground-active inputs
7 High-Side outputs
8 Low-Side outputs
9 Outputs with extended functions
A Circuit 30
C Circuit 31
N26/15 PSM control unit