Parameterizable Special Module (PSM), Function - GF54.21-D-0002TSB
Model 447, 448
With Code ED5 (Parameterisable special module)
With Code XM7 (MOPF II)
Model 907, 910
With Code ED5 (Parameterisable special module)
With Code XJ4 (Modification year G4-I)
Shown on model 907
Shown on model 910
Topology of overall network (GVN), shown on model 447.8 With Engine OM654
Topology of overall network (GVN), shown on model 447.8 With Engine M254
Topology of overall network (GVN), shown on model 447.6/7 With Engine OM654
Topology of overall network (GVN), shown on model 447.6/7 With Engine M254
Parameterizable special module (PSM) function
The parameterizable special module (PSM) control unit (N26/16) forms the interface between the vehicle and the bodybuilder manufacturer electronics. Information is exchanged here via 4 CAN connections: Interior CAN (CAN B), bodybuilder manufacturer CAN (CAN ABH), Multifunction CAN (model 907, 910) or CAN for multifunctions (model 447, 448) (CAN K) and CAN 2 for user interface (model 907, 910) or user interface CAN 2 (model 447, 448) (CAN HMI2).
The vehicle status can be read and vehicle functions (e.g. engine speed) controlled by the bodybuilder manufacturer electronics via the parameterizable special module (PSM) control unit (N26/16) and via CAN.
Furthermore, analog and digital inputs and various digital outputs are available to the bodybuilder manufacturer; these are described in more detail in the following chapters.
- Plug 1:
- 4 connections, circuit 30
- 2 connections, circuit 31
- Plug 2:
- 12 multifunction outputs
- Plug 3:
- 24 multifunction inputs
- 12 multifunction outputs
- Plug 4:
- Network (CAN, LIN, etc.)
- 1 multifunction input
- 1 multifunction output
| MFE_ANALOG_INPUT | 8 low-active inputs (for parameterization as a digital input) |
with switchable pull-up resistor, wake-up capable |
| 1 high-active input (for parameterization as a digital input) |
with pull-down resistor | |
| MFE_DIGITAL_INPUT | 8 low-active inputs | with pull-up resistor, wake-up capable |
| 8 high-active inputs | with pull-down resistor, wake-up capable |
The analog inputs can also be parameterized e.g. so that they can also be used as digital inputs.
MFE ANALOG INPUT parameterizable as:
- Analog input (voltage value, 16 bit)
- Analog input (4 stages, fixed)
- Analog input (4 stages, adjustable)
- Digital input (8x low-active, 1x high-active)
- Alarm button
- Reset button
| Number | Function |
|---|---|
| MFE_01 | analogue_Input_1 |
| MFE_02 | analogue_Input_2 |
| MFE_03 | analogue_Input_3 |
| MFE_04 | analogue_Input_4 |
| MFE_05 | analogue_Input_5 |
| MFE_06 | analogue_Input_6 |
| MFE_07 | analogue_Input_7 |
| MFE_08 | analogue_Input_8 |
| MFE_09 | Digital_low-active_input_1active_Input_1 |
| MFE_10 | Digital_low-active_input_2active_Input_2 |
| MFE_11 | Digital_low-active_input_3active_Input_3 |
| MFE_12 | Digital_low-active_input_4active_Input_4 |
| MFE_13 | Digital_low-active_input_5active_Input_5 |
| MFE_14 | Digital_low-active_input_6active_Input_6 |
| MFE_15 | Digital_low-active_input_7active_Input_7 |
| MFE_16 | Digital_low-active_input_8active_Input_8 |
| MFE_17 | Digital_high-active_input_1active_Input_1 |
| MFE_18 | Digital_high-active_input_2active_Input_2 |
| MFE_19 | Digital_high-active_input_3active_Input_3 |
| MFE_20 | Digital_high-active_input_4active_Input_4 |
| MFE_21 | Digital_high-active_input_5active_Input_5 |
| MFE_22 | Digital_high-active_input_6active_Input_6 |
| MFE_23 | Digital_high-active_input_7active_Input_7 |
| MFE_24 | Digital_high-active_input_8active_Input_8 |
| MFE_25 | analogue_Input_25 |
Multifunction outputs (MFA)
The parameterizable special module (PSM) control unit (N26/16) has a total of 25 discrete outputs. These MFAs can be configured individually.
It should be noted that not all MFAs offer the same options.
However, all outputs can be parameterized so that they "flash" on activation ("Soft PWM", maximum frequency 10 Hz).
Special PWM outputs are available for higher frequencies.
| MFA_POWER | 2 high-side outputs | with operating current 10 A | |
| 2 high-side outputs | with operating current 5 A | ||
| MFA_PWM | 2 low-side outputs | with operating current 1 A | PWM-capable |
| 5 high-side outputs | with operating current 0.5 A | PWM-capable | |
| 4 low-side outputs | with operating current 0.5 A | PWM-capable | |
| MFA_ASYMMETRIC_HALF_ BRIDGE | 4 asymmetric half bridges | with operating current 5 A | PWM-capable |
| MFA_RELAY | 2 relay outputs | with 1 A each |
l outputs can hold their respective rated load for an unlimited time. The simultaneous use of all rated currents at all outputs is also permissible.
One of the eight MFA_PWM*-'0.5 A outputs' can be loaded with up to 0.6 A, provided that the others have a maximum of 0.5 A and the sum of the currents of these eight outputs does not exceed 4 A.
* 4 high-side (MFA_09 - MFA_12) and 4 low-side (MFA_15 - MFA_18)
| Number | Function |
|---|---|
| MFA_01 | Digitaler_Output_High_5A_1 |
| MFA_02 | Digitaler_Output_High_10A_1 |
| MFA_03 | Digitaler_Output_High_5A_2 |
| MFA_04 | Digitaler_Output_High_10A_2 |
| MFA_05 | Digitaler_Output_High_5A_3 |
| MFA_06 | Digitaler_Output_High_5A_4 |
| MFA_07 | Digitaler_Output_High_5A_5 |
| MFA_08 | Digitaler_Output_High_5A_6 |
| MFA_09 | Digitaler_PWM_Output_High_1 |
| MFA_10 | Digitaler_PWM_Output_High_2 |
| MFA_11 | Digitaler_PWM_Output_High_3 |
| MFA_12 | Digitaler_PWM_Output_High_4 |
| MFA_13 | Digitaler_PWM_Output_Low_5kHz_1A_1 |
| MFA_14 | Digitaler_PWM_Output_Low_5kHz_1A_2 |
| MFA_15 | Digitaler_PWM_Output_Low_300Hz_500mA_1 |
| MFA_16 | Digitaler_PWM_Output_Low_300Hz_500mA_2 |
| MFA_17 | Digitaler_PWM_Output_Low_300Hz_500mA_3 |
| MFA_18 | Digitaler_PWM_Output_Low_300Hz_500mA_4 |
| MFA_19 | Digital_PWM_Output_Half_1 |
| MFA_20 | Digital_PWM_Output_Half_2 |
| MFA_21 | Digital_PWM_Output_Half_3 |
| MFA_22 | Digital_PWM_Output_Half_4 |
| MFA_23 | Relay output 1 - Common contact (Com) Open contact in rest state (NO) Closed contact in rest state (NC) |
| MFA_24 | Relay output 2 - Common contact (Com) Open contact in rest state (NO) Closed contact in rest state (NC) |
| MFA_25 | Digitaler_PWM_Output_High_5 |
In addition to the interface modules listed above, additional modules are available to the user for implementing the desired vehicle function:
- Programmable logic controller (PLC)
- Arithmetic unit
- Special functions
- Messages in multifunction display
- Basic settings
The functionality of the parameterizable special module (PSM) control unit (N26/16) is defined and adapted to the corresponding body by the parameterization of individual modules. The parameterization of the parameterizable special module (PSM) control unit (N26/16) can be performed via the "SCN coding" menu item (on-line) for special equipment codes (SA code) available ex factory. Parameterization via the expert coding is required for all other adjustments.
The SA codes available ex factory for model 907 are:
- Code BR9 (Pre-installation for eddy current brake)
- Code C2A (Air spring - V-signal actuation)
- Code CB2 (Air suspension comfort suspension)
- Code E5M (Extension of PSM standard contact)
- Code JA3 (Intelligent body control)
- Code JO2 (OLU pre-installation)
- Code JO3 (OLU connect unit)
- Code M53 (Constant-rpm control)
- Code MT4 (Variable electronic rpm governor)
- Code MW1 (Engine run-on control (EROC [MWS]))
- Code N05 (Countershaft power take-off (2c) without flange)
- Code N07 (MB countershaft power take-off, 2b)
- Code N1V (Pre-installation for power take-off)
- Code PZ0 (Delivery package for delivery veh. DHL integral box body)
- Code S23 (Front passenger bench seat)
- Code T57 (Right load compartment sliding door electric step)
- Code T58 (Left load compartment sliding door electric step)
- Code ZH4 (Offroad operation)
The SA codes for model 910 available ex factory are:
- Code E5M (Extension of PSM standard contact)
- Code JA3 (Intelligent body control)
- Code JO2 (OLU pre-installation)
- Code JO3 (OLU connect unit)
- Code M53 (Constant-rpm control)
- Code MT4 (Variable electronic rpm governor)
- Code MW1 (Engine run-on control (EROC [MWS]))
The SA codes available ex factory for model 447/448 are:
- Code HZ1 (Auxiliary heating (warm air))
- Code JO3 (OLU connect unit)
- Code ZK0 (Electric EASY UP pop-up roof)
- Code ZK7 (MARCO POLO equipment line)