TB20 Counter 24 V, 500 kHz, 32 Bit

Counters are used to detect pulses that are faster than a controller?s cycles, i.e., signals that the controller will be unable to detect properly and that therefore need to be pre-processed.

The counter module detects the edges of 24 V signals as pulses. The impulses can be counted or converted into a frequency, rotational speed, or period. The counter module features an additional 24 V input and a 24 V output for a direct response to start pulses and to quick system state changes.

Capturing modes

• Pulse & direction
• Rotary encoder with single evaluation
• Rotary encoder with double evaluation
• Rotary encoder with quadruple evaluation

Counting methods

• Continuous counting
• Once-only counting
• Periodic counting

Measuring mode

• Frequency measurement
• Rotational speed measurement
• Period measurement

Programmable input

• PLC input
• Approval (HW gate)
• Synchronization
• Periodic synchronization
• Latch
• Latch & retrigger
• Can be inverted

Programmable output

• PLC output
• Count >= Reference value
• Count <= Reference value
• Count = Reference value
• Can apply a substitute value at STOP