Set counter value
The counter value can be set to a predefined value at runtime and thus be used for synchronization with other processes. The preset can be activated in the following ways:
- PLC variable: the counter value can be set from the PLC application (Set counter value)
- Zero pulse C input: via the zero pulse C of the encoder (Set counter on latch C)
- Latch input: a positive or negative edge at the Latch extern input (Set counter on latch extern on positive/negative edge)
Multiple activation of "Set counter on ..." If several commands are activated to accept the preset counter value, only the command that is set first is accepted by the terminal. All other commands are ignored but remain activated, depending on the system.
|
Set counter value via a PLC variable (Set counter value)
The counter value can be set to a predefined value during runtime via the process data (0x70n0:03 "Set counter"). In the PLC this bit can be linked to a digital input, for example, or used directly as a variable.
- Presetting the counter value via index 0x70n0:11 "Set counter value"
- Activation of the counter value setting via the PLC variable: Index 0x70n0:03 "Set counter"
- For confirmation the "Set counter done" bit in index 0x60n0:03 is set to TRUE.
- The counter value setting cannot be reactivated until index 0x70n0:03 "Set counter" has been set to FALSE.
Set counter value via input zero pulse C (Set counter on Latch C)
The counter value can be set to a preset value during runtime via the process data by means of the zero pulse C.
- Counter value setting via index 0x70n0:11 "Set counter value"
- Activation of the counter value setting via zero pulse C:
- Index 0x70n0:08 "Set counter on latch C" = TRUE
With the next zero pulse the counter value is set to the counter value specified in index 0x70n0:11 (Set counter value). - For confirmation the "Set counter done" bit in index 0x60n0:03 is set to TRUE.
- The counter value setting via the zero pulse C cannot be reactivated until the "Set counter on latch C" bit in index 0x70n0:08 is set to FALSE.
Set counter via the Latch extern input (Set counter on latch extern on positive/negative edge)
The counter value can be set to a preset value during runtime via the process data by the positive or negative edge at the Latch extern input.
- Counter value setting via index 0x70n0:11 "Set counter value"
- Activation of the counter value setting via
- the positive edge at the Latch extern input: index 0x70n0:0A "Set counter on latch extern on positive edge"
- the negative edge at the Latch extern input: index 0x70n0:0B "Set counter on latch extern on negative edge"
- If the bit is set (TRUE) in index 0x70n0:0A or 0x070n0:0B, the counter value is set to the specified value at the next rising or falling edge at the Latch extern input.
- For confirmation the "Set counter done" bit (index 0x60n0:03) is set to TRUE.
- The counter value specification cannot be reactivated until index 0x70n0:0A/0B "Set counter on latch extern on positive/negative edge" is set to FALSE.