Counter Function; General Information; Controlling The Counter Via The Input And Outputs - Bosch Rexroth IndraControl S67 Manual

DOK-CONTRL-S67DIO4M12H-AP02-EN-P
Rexroth IndraControl S67 Digital Module High Speed 4 Inputs/Outputs – 0.2 A (84×M12)
10

Counter Function

10.1

General Information

10.2

Controlling the Counter via the Input and Outputs

The S67-DIO4-HS-M12 module also provides a counter that can be control‐
led via the module's physical connections X1 ... X4 as well as the process
data (control and status byte).
The counter features a counter input (pulse input), two parameterizable con‐
trol inputs (gate input, count direction) and a parameterizable switching out‐
put that is automatically set by the module when a limit value is reached. This
makes fast response time possible, which do not depend on the field bus and
the control.
Gate function
When delivered, the gate function is activated in the control byte.
This function must remain active to use the counter functions (see
chapter 10.3.2 "Control Byte" on page
The counting takes place in an edge-controlled manner, i.e., by changing the
signal from 0 V to 24 V at the pulse input, the counter reading is incremented
or decremented. This depends on whether the counter is configured as a for‐
wards or backwards counter.
There are three operatoin modes available for the counter:
● Event counter
The event counter count the pulses detected on the counter input
● Gate time counter
It counts the pulse within a definable gate time (time frame in which the
measurement is taken). A gate time of 1 second produces the frequency
of the input signal in Hertz. The gate time counter can be parameterized
via the process data
● Pulse duration counter
The pulse duration counter measures the pulse duration in milliseconds
If the channels are assigned to a counter, all available configurable channel
properties (e.g. filter time) can still be parameterized.
Pulse
Direction of counting
Gate
Counter reading
Fig. 10-1: Counter reading dependons on the control inputs (gate input and
count direction input)
The assignment of the counter functions to the individual channels is defined
in the table below. By default, the "gate input", "count direction input",
"switching output" functions are deactivated via inputs and outputs. These
functions control the counter via the process data.
Bosch Rexroth AG 59/79
Counter Function
60).