Functioning IP/IE5109
The IP/IE5109 incremental encoder interface module allows any 5 V incremental encoder to be connected to the Fieldbus or Coupler Box. A 16 bit counter with a quadrature decoder and a 16 bit latch can be read, set or enabled. In addition to the encoder inputs A, B and C, an additional latch input (24 V) and a gate input (24 V) for locking the counter are available.
It is also possible for the 16-bit up/down counter operating mode to be selected. In this mode, input A is the counter input, input B defines the direction.
The feature register permits measurement of periods. In this case, the length of the period between two positive edges in input signal A is determined with a resolution of 250 ns.
Single, double or quadruple evaluation of the encoder signals A, B and C in simple or complementary form can be parameterised via the fieldbus. The module is supplied set to function as a 4-fold quadrature decoder with complementary evaluation of the encoder signals A, B and C.
If the encoder has a fault signal output, it can be connected to the STATUS input of the module.
The encoder is supplied with the necessary 5 VDC power from the module.
Process data
|
Signals |
Description |
|---|---|
|
Inputs A, /A |
Pulse input in the module's encoder and counter operating modes |
|
Inputs B,/B |
Phase-shifted pulse input in the module's encoder operating mode |
|
Inputs C,/C |
Zero point pulse input for the module's latch register This input is activated by means of the EN_LATC bit in the module's control byte |
|
External latch 24 V |
Additional latch input for the module This input is activated by means of the EN_LAT_EXT bit in the
module's control byte. |
|
External gate 24 V |
A high level at this contact halts counting in the terminal. |
|
Status input |
If the incremental encoder has a fault signal output, it can be connected to the status input (an active low input with internal pull up circuitry). |
|
US |
Power supply for the electronics and the encoder |
|
UP, GND |
In order for the module to operate, a power supply of 0 V and 24 V must be connected to these contacts. |