Part 1
GF54.21-D-3014H Parameterization Of DAS Coding, PSM, Function
- with CODE (ED5) Parameterizable special module (PSM)
- with CODE (ED8) Preinstallation for parameterizable special module (PSM)
Important notes
Checking logical correlations
The Diagnosis Assistance System (DAS) does not provide a possibility of checking whether or not settings are plausible (e.g. assignment of a pulse width modulation (PWM) signal to a non-PWM-capable output). It is also not possible to perform troubleshooting on the connected vehicle body using the DAS.
Menu guidance in DAS
Entry into coding of the PSM control unit takes place in DAS in 2 steps:
- Activation of the menu item "Control unit adaptations".
- Activation of standard coding on model 639.
- Activation of the menu item "Read coding and change if necessary".
- Activation of standard coding on model 906.
The standard coding facilitates parameterization of the discrete inputs and the outputs of the PSM control unit. More advanced settings must be performed using the expert coding.
The standard coding of the PSM control unit for model 639 is identical to the previous standard coding on model 639.
Overview
The DAS provides the following possibilities for coding the PSM control unit:
- Standard coding
- Expert coding
- Coding display
- Reset coding
- Data management
The type and parameterization of the coding can be selected and set via the DAS menu mask.
Menu item "Standard coding"
This menu item provides the following possibilities:
- Activation of the standard codings that were written at the factory.
- Activation of retarder.
The retarder coding is deactivated ex plant as the retarder is installed later on.
When the retarder is fitted, the coding must be activated afterwards.
To do so, please use the selection "SA code BR9" (with preinstallation for Telma retarder) in the DAS menu.
Menu item "Expert coding"
The expert coding permits access to all parameters of the PSM control unit.
The DAS menu "Expert coding" has the following structure:
- Submenu item "Interfaces"
- Submenu item "Logic functions of programmable logic controller (SPS)"
- Submenu item "Special functions"
- Submenu item "Global functions"
Menu item "Coding display"
The DAS menu "Coding display" has the same structure as the menu "Expert coding". Once the menu item has been activated, the coding currently stored in the PSM control unit is read out and displayed on the screen.
Menu item "Reset coding"
When this menu item is activated, the coding stored in the PSM control unit is deleted.
All input, outputs and internal functions are deactivated afterwards.
Menu item "Data management"
The DAS menu mask "Data management" has the following structure:
- Submenu item "Storing current coding in DAS"
- Submenu item "Transferring coding stored in DAS to control unit"
- Submenu item "Deleting coding stored in DAS"
- Submenu item "Storing current coding on diskette"
- Submenu item "Transferring coding stored on diskette to control unit"
Data management is not available in the DAS simulation as codings created in the simulation do not function in the real vehicle.
Submenu item "Storing current coding in DAS"
When this menu item is activated, the coding is read out of the PSM control unit. After this a "designator" and the "number" is selected under which the data record should be stored. The coding is stored under the selected "designator" at the "selected memory position".
Submenu item "Transferring coding stored in DAS to control unit"
If codings are stored on the DAS computer, a list of the available data records is displayed.
When a data record has been selected, the stored coding is transferred to the PSM control unit.
Submenu item "Deleting coding stored in DAS"
When this menu item is activated, the selected data record is deleted from the hard disk.
Submenu item "Storing current coding on diskette"
When this menu item is activated, the coding is read out of the PSM control unit. After this a "designator" and the "number" is selected under which the data record should be stored. The coding is stored on a floppy disk under the selected "designator".
Submenu item "Transferring coding stored on diskette to control unit"
If codings are stored on the DAS computer, a list of the available data records is displayed.
When a data record has been selected, the stored coding is stored in the PSM control unit.
Expert coding
The coding of the scopes which were available up to now for model 639 (such as, taxi or refrigerator vehicles) can continue to be carried out in the usual manner. You only need the expert coding for scopes which go beyond the functions available up to now.
Parameterizing signal settings or properties
The expert coding allows access to all signals and parameters of the PSM control unit. In the process a distinction is made between 2 coding alternatives:
- Signal settings
- Property parameterization
"Signal settings" must be made wherever a signal is actuated by another signal (e.g. high beams switched on via a discrete input).
All other adjustments (e.g. waking capability of inputs, shutoff current values of outputs, run-on time of PSM control unit) are realized via the menu item "Parameterize properties".
Signal settings
The signal settings are defined in 3 steps:
- Signal selection
- Setting of signal source
- Setting of signal parameters
In the following example, the vehicle function "Switch on high beams" is to be actuated externally via a switch, i.e. the function is implemented using the following interfaces:
- Controller Area Network bus class B (interior) (CAN-B) (vehicle function "Lights")
- Discrete input (as signal source)
These interfaces are defined in the 1st operation step of coding via the "Signal adjustment".
In addition, conditions can be linked to this signal under "Setting of signal parameters". For example, in order to switch on the high beams, the parameter "Edge-operated signal evaluation" can be set as the condition.
Example
The vehicle function "High beams" is to be switched on by means of a switch at input 01. The coding is performed via "Signal settings" and "Setting of parameters" in 3 steps.
Signal settings step 1 - Signal selection
The required vehicle function "Switch on high beams" is defined as the signal to be actuated.
Signal settings step 2 - Setting of signal source
The signal source which triggered the vehicle function is defined with the aid of the "Signal list", the associated signal ID is noted and input in the DAS screen. When the F2 button is pressed, the selection is displayed again with a longer description.
Signal settings step 3 - Setting of parameters
In the DAS mask, the "Switch on high beams" signal is linked to the parameter "Signal evaluation" (edge-operated or level-operated). When the button is pressed F2 a reporting window shows that the signal coding is finished. If further codings are required, you must start at step 1 again. Pressing the F1 button stops the coding.
Parameter setting is an option. This option is not available for some signals. If this is the case, the DAS displays an appropriate message.
Property parameterization
The DAS mask "Menu item, Discrete inputs - Property parameterization" shows the parameterization of the properties. Pressing the F3 button stops the coding.
Structure of DAS menu "Expert coding" Interfaces
These are structured as follows:
- Discrete inputs:
- Property parameterization:
- Input 01 wake-capable
- Input 02 wake-capable
- Input 03 wake-capable
- Input 04 wake-capable
- Input 05 wake-capable
- Input 06 wake-capable
- Inputs 07 and 08 wake-capable
- Pull-up resistor at input 04
- Pull-up resistor at input 05
- Pull-up resistor at input 06
- Operating principle of input 01
- Operating principle of input 02
- Operating principle of input 03
- Operating principle of input 04
- Operating principle of input 05
- Operating principle of input 06
- Operating principle of input 07
- Operating principle of input 08
- Operating principle of input 09
- Operating principle of input 10
- Evaluation type of input 07
- Evaluation type of input 08
- Evaluation type of input 09
- Evaluation type of input 10
- Switching thresholds for analog inputs 01 to 10 - Property parameterization
- Input 07: threshold 1
- Input 07: threshold 2
- Input 07: threshold 3
- Input 07: threshold 4
- Input 07: threshold 5
- Input 07: threshold 6
- Input 07: threshold 7
- Input 08: threshold 1
- Input 08: threshold 2
- Input 08: threshold 3
- Input 08: threshold 4
- Input 08: threshold 5
- Input 08: threshold 6
- Input 08: threshold 7
- Input 09: threshold 1
- Input 09: threshold 2
- Input 09: threshold 3
- Input 09: threshold 4
- Input 09: threshold 5
- Input 09: threshold 6
- Input 09: threshold 7
- Input 10: threshold 1
- Input 10: threshold 2
- Input 10: threshold 3
- Input 10: threshold 4
- Input 10: threshold 5
- Input 10: threshold 6
- Input 10: threshold 7