PSM Logic Functions, Threshold Switch Function - GF54.21-S-3209TRA
Model 447
With Code ED5 (Parameterisable special module)
Except Code XM7 (MOPF II)
Model 448
With Code ED5 (Parameterisable special module)
Except Code XM7 (MOPF II)
Threshold switch, function
The threshold switch has an analog input (E) with 16 bit width and 4 digital outputs (AA , AB , AC , AD ). The input (E) is an encodable filter connected in series.
The input value is compared with up to 4 threshold values (A, B, C, D) and then the relevant output set (AA , AB , AC , AD ).
When coding the threshold switch, the parameter threshold value (PSA , PSB , PSC , PSD ) must match the following coding specification:
Threshold value (A) < Threshold value (B) < Threshold value (C) < Threshold value (D).
If this coding specification is not followed the characteristic of the threshold switch is not defined.
For outputs (AA , AB , AC , AD ) a run point or a bar graph function can be coded.
Signal identification number = Signal ID.
| Input (E) | Output (AA ) | Output (AB ) | Output (AC ) | Output (AD ) |
|---|---|---|---|---|
| Input (E) ← Threshold value (A) | 0 | 0 | 0 | 0 |
| Threshold value (A) < Input (E) ← Threshold value (B) | 1 | 0 | 0 | 0 |
| Threshold value (B) < Input (E) ← Threshold value (C) | 0 | 1 | 0 | 0 |
| Threshold value (C) < Input (E) ← Threshold value (D) | 0 | 0 | 1 | 0 |
| Threshold value (D) < Input (E) | 0 | 0 | 0 | 1 |
| Input (E) | Output (AA ) | Output (AB ) | Output (AC ) | Output (AD ) |
|---|---|---|---|---|
| Input (E) ← Threshold value (A) | 0 | 0 | 0 | 0 |
| Threshold value (A) < Input (E) ← Threshold value (B) | 1 | 0 | 0 | 0 |
| Threshold value (B) < Input (E) ← Threshold value (C) | 1 | 1 | 0 | 0 |
| Threshold value (C) < Input (E) ← Threshold value (D) | 1 | 1 | 1 | 0 |
| Threshold value (D) < Input (E) | 1 | 1 | 1 | 1 |
| Designation in data entry table | Data entry bit width | Data bit evaluation | Meaning |
|---|---|---|---|
| B1_G1_SS1_Threshold_A | 16 bit | - | Encodable threshold value (A) |
| B1_G1_SS1_Threshold_B | 16 bit | - | Encodable threshold value (B) |
| B1_G1_SS1_Threshold_C | 16 bit | - | Encodable threshold value (C) |
| B1_G1_SS1_Threshold_D | 16 bit | - | Encodable threshold value (D) |
| B1_G1_SS1_Mode | 1 bit | - | Set value: "0" = Bar graph "1" = Run point |
| B1_G1_SS1_Signal_ID | 32 bit | 16 bit | Filter + signal ID input signal data entry |
| Designation in signal ID list | Data bit width | Meaning |
|---|---|---|
| Out_G1_SS1_A | 1 bit | Signal ID of output (AA ) |
| Out_G1_SS1_B | 1 bit | Signal ID of output (AB ) |
| Out_G1_SS1_C | 1 bit | Signal ID of output (AC ) |
| Out_G1_SS1_D | 1 bit | Signal ID of output (AD ) |
The same applies for the other threshold switches with the naming convention:
- "B<Block number>_G<Group number>_SS<Number>_Threshold_(A, B, C, D)"
- "Out_G<Group number>_SS<Number>_(A, B, C, D)"
| Parameterizable special module (PSM) control unit component description | GF54.21-S-5005TRA | ||
| Overview of system components for parameterizable special module (PSM) | GF54.21-S-9998TRA |