General description of multifunctional counter Attention: This is only valid for counters and tachometers. For timers please refer to the special Timer Description. General description of multifunctional counter Independently the counter can be reset to Preset value 0 via the application input (see below). Display 2. row: The display of the 2nd row can be programmed as follows: P 2, P 1, P 0, Prescaler, Batch counter, totalizer or partial sums (shift counter) Exception: Tachometers do not have a reset/set function Static/dynamic reset: Static reset: Reset over the entire pulse width of the reset pulse Dynamic reset:
Reset via the active edge; thereafter, counter operation is possible independently of the pulse width of the reset pulse. Counter and control inputs: The counter is fitted with 3 counter and control inputs and, in addition, with an application input (see below). These inputs are assigned various counter or control functions by means of function code settings Exception: Tachometers do not have a reset/set function Input logic: The input logic can be programmed to NPN or PNP, each at the 8V-level or TTL level; see Technical Data for the switching threshold. Teach input: Using the Teach Input (application input) the counter status is imported in Preset 2. Reset/Set:
Manual setting via keys (lockable) Electronic setting via control input (and/or application input) Automatic programming after reaching the main Preselection Programmable Power-On Reset Decimal Point: The decimal point is only an optical reading assistence on the display and does not change the value. For example, for a value of 1 pulse per cm, the setting 0,00 makes it easier to read the value in m and cm. Exception: This does not apply to tachometers and timers. Please refer to the detailed Tachometer and Timer descriptions. Depending on the function code the counter is: 1.) Reset: reset to 0 P 2 is the main Preset (preselect) value During unidirectional counting the counter will add up.
Input damping (Attenuation) The inputs A and B are limited to 60 kHz. The Application Input is limited to 6 kHz. or 2.) Set: reset to P 2 Signal 2 at 0 During unidirectional counting the counter will subtract. Following maximum input frequencies are not to be exceeded: Phasediscriminator single evaluation: A and B each 30 kHz (TTL 15 kHz) Phasediscriminator double evaluation: A and B each 30 kHz (TTL 15 kHz) Phasediscriminator quadruple evaluation: A and B each 15 kHz (TTL 15 kHz) Unidirectional counting and directional input: Input A 60 kHz (TTL 15 kHz) Differential counting, summation (totalizing):
Input A + B 60 kHz (TTL 15 kHz) For time counting, batch counting or shift counting, it is possible to reset par tial sums or the total sum, batch counter or 2nd totalizer individually or at the same time via the application input. 34 35