Compatibility mode in relation to EL1252/EL2252
Via the predefined PDO selection the multi-timestamp terminals can be set to a largely identical and therefore compatible process image in relation to the EL1252/EL2252. This means that software interfaces that were created for these timestamp terminals can also be used for multi-timestamp terminals. To this end select the settings "Compatible n-Ch." in the EL1258/EL2258. The behavior is then as for the EL1252/EL2252.
- MTO (Multi-Timestamp-Output) and MTI (Multi-Timestamp-Input) for the multi-timestamp mode (multiple events, no Activate necessary)
- TSO (Timestamp-Output) and TSI (Timestamp-Input) for the EL1252/EL2252 compatible mode (single event, with Activate)
 | Predefined PDO selection All channels of the terminal are to be operated in the same way: either with the Multi-Time-Stamp process data MTO/MTI or with the EL1252/EL2252 compatible process data TSO/TSI ! |
In compatible mode the terminals operate with the following time properties:
EL1258 | Macrocycle time [µs, typical] | Microcycle time [µs, typical] |
|---|---|---|
1 Ch. | 50 | 7 |
2 Ch. | 70 | 9 |
4 Ch. | 90 | 13 |
8 Ch. | 120 | 21 |
EL1259 | Macrocycle time [µs, typical] | Microcycle time [µs, typical] |
1 Ch. In + 1 Ch. Out | 90 | 8 |
2 Ch. In + 2 Ch. Out | 160 | 11 |
4 Ch. In + 4 Ch. Out | 180 | 18 |
8 Ch. In + 8 Ch. Out | 200 | 30 |
EL2258 | Macrocycle time [µs, typical] | Microcycle time [µs, typical] |
1 Ch. | 70 | 7 |
2 Ch. | 90 | 8 |
4 Ch. | 110 | 10 |
8 Ch. | 120 | 15 |
The microcycle time defines the feasible time resolution of the input capture/output issue.
PDO definition
The process data for inputs and outputs can specified as "predefined PDO" or freely combined:
- Selection via "predefined PDO"
Several pre-configured combinations of channel number and MTSF are offered. We recommend selecting the process data compilations in this way.
- Free compilation
Alternatively, the number of used channels and MTSF per channel can be set as a free compilation via the PDO assignment. The process data objects (PDO) to be transferred cyclically are activated from the inputs/outputs list in the System Manager.
The meaning of the individual PDOs can be found in the CoE overview. Please note:
- "Multi-TimeStamp PDO" MTO/MTI and "compatible PDO" TSO/TSI cannot be combined
- The corresponding control/status must be active for each active input/output channel
- The MTSF can be set freely from 1 to 10 for each channel
- Only 1 multi-timestamp factor may be active per channel. It is therefore not permitted to activate PDO "MTO Outputs 5x Channel 1" and PDO "MTO Outputs 2x Channel 1" at the same time, for example.
- In the "Multi-TimeStamp-PDO" MTO/MTI mode, the channels must be mapped continuously, gaps are not allowed, example:
Ch1+Ch2+Ch4 is not allowed (gap), Ch1+Ch2+Ch3 is allowed (skip channels at the end).
If an irregular PDO combination is selected, it may lead to the ERR-PREOP state ‘invalid output mapping’ or ‘invalid input mapping’.
