Version 3.0.0 Preliminary Documentation – May be Subject to Change 10-46
Figure 2.3.1 PWM, Frequency or Counter Input Block Diagram
2.4.
Input Sensor Types
The 18 Digital Inputs module is a device that measures inputs and sends the data to a CANopen
network. Each input can be configured for any one of the following options by selecting the desired
Operating Mode (6112h) set for 'Normal Operation’ and the Sensor Type (6110h) objects.
The properties and behavior of the input in each mode are described below.
Input Disabled:
This mode is selected by setting the Operating Mode (6112h) to 'Not Used'.
The Field Value (7100h) and Process Value (7130h) are always 0.
Digital Input:
This mode is selected by setting the Operating Mode (6112h) to 'Digital Input'.
This mode is configured to read the state of the digital input pin together with
the hardware polarity object (2000h) and the software polarity object (6002h)
to determine the logical state (ON/OFF) of the digital input channel.
The input is read by the DI Read State (6000h) object in the Digital Input
Block.
Error detection objects are not used, since error detection is not possible in
this mode. The Field Value (7100h) and Process Value (7130h) are always 0.
PWM Duty Cycle: The input is configured to measure the duty cycle of a pulse width modulated
(PWM) signal in the range of 0 to 100%dc, with a frequency between 10Hz to
10kHz. Field value (7100h) and error detection objects (2010h and 2080), will
be interpreted in percent duty cycle divided by 100 [%dc / 100].
Frequency:
The input is configured to count the number of pulses that occur over the
period of the Measuring Window object (2090h). At the end of the measuring
window, the frequency of the pulses is calculated, and the FV is updated. Field
value (7100h) and error detection objects (2010h and 2080), will be interpreted
in hertz [Hz].
Window
2090h
Input Type
6110h
Operation
6112h
Constant
61A1h
Input
Pin
Count/
Timer
Meas.
Calc.
Scaling
Field Value
7100h
Dec. Digits
6132h
Filter PWM
61A0h
Proc. Val
7130h
Scale 1 FV
7120h
Scale 2 FV
7122h
Offset
7124h
Scale 1 PV
7121h
Scale 2 PV
7123h
Autozero
6125h
Error
Checking
Err Min
2010h
Err Max
2080h
Err Active
20A0h
Err Delay
20B0h
Error
React
Controller
CAN Bus
Not 16-bit
Counter
