PSM Logic Functions, Timer Block Function - GF54.21-D-3212TSA
Model 907
with code ED5 (Parameterisable special module)
Timer block function
The timer block has a trigger input (E1 ), a reset input (E2 ) as well as an output (AA ) and an output (AB ), whereby output (AB ) is always the inversion of output (Aa). Outputs (Aa, Ab) become active for a definable time after triggering.
A codable filter is connected upstream of the trigger input (E1 ) and upstream of the reset input (E2).
The reset input (E2 ) is always state-controlled and can reset the timer at any time.
It is possible to set whether the timer block is "retriggerable" and whether evaluation of the input signal is edge-controlled or state-controlled.
Coding of timer block
The trigger input (E1 ) and the reset input (E2 ) of the timer block are coded by assigning an identification number (ID) of a signal from the signal pool.
Dependencies on vehicle state can also be set.
The time parameter (PZt ) is an 8-bit value whose time (t) can also be set.
| Designation in data entry table | Data entry bit width | Data bit evaluation | Meaning |
|---|---|---|---|
| B1_G1_TB1_time | 8 bit | - | 0...255 |
| B1_G1_TB1_time base | 4 bit | - | 100 ms → 1 1 s → 2 10 s → 3 1 min → 4 10 min → 5 |
| B1_G1_TB1_type_of_evaluation | 1 bit | - | state-triggered → 0 edge-triggered → 1 |
| B1_G1_TB1_edge_evaluation | 1 bit | - | positive edge evaluation → 0 negative edge evaluation → 1 |
| B1_G1_TB1_retriggerable_timer_block | 1 bit | - | not "retriggerable" → 0 "retriggerable" → 1 |
| B1_G1_TB1_1 | 32 bit | 1 bit | Filter + input signal data entry signal ID for trigger input (E1) |
| B1_G1_TB1_2 | 32 bit | 1 bit | Filter + input signal data entry signal ID for reset input (E2 ) |
| Designation in signal ID list | Data bit width | Meaning |
|---|---|---|
| Out_G1_TB | 1 bit | Signal ID of output (Aa) |
| Out_G1_TB_inv | 1 bit | Signal ID of inverted output (AB ) |
The output signal of the timer block is written to the signal pool. At the same time, the inversion of the output signal is calculated and also placed in the signal pool.
The same applies for the other timer blocks with the naming conventions:
- "B<block number>_G<group number>_TB<number> ..."
- "Out_G<group number>_TB ..."
| Overview of system components for parameterizable special module (PSM) | GF54.21-D-9998TSA |