STEVAL-IFP007V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – 16-bit PLC digital input card demonstration board based on the SCLT3

STEVAL-IFP007V1
16-bit PLC digital input card demonstration board
based on the SCLT3
Data brief
Features
■ 8/16 input channel topology (SCLT3-8
chip/STEVAL-IFP007V1 board)
■ Fully integrated current limiter
■ Termination for IEC61131-2 type 1 and 3
inputs
■ Digital filter in each input
■ SPI communication peripheral
■ Voltage regulator integrated on the chip
■ Thermal alarm
■ Wide range supply voltage operation
Description
The STEVAL-IFP07V1 demonstration board is
based on the SCLT3-8 protected digital input
termination with serialized state transfer, and
allows the user to evaluate the behavior of the
SCLT3-8 device in industrial environmental
conditions.
The SCLT3-8 is an eight channel termination
used to interface automation digital inputs. It is
designed for 24 VDC applications, and supports
the type 3 input characteristic in accordance with
standard IEC61131-2 (programmable controllers).
The device integrates an SPI peripheral for
communication with logic devices, ASICs and
microcontrollers.
This demonstration board is capable of
transferring not only the data but also additional
information such as thermal alarms, under
voltage indications and parity bits. The STEVAL-
IFP07V1 is ideal for applications with a high
channel count, while the serial communication
reduces the number of lines which, in most final
applications, require galvanic isolation.
The board accommodates two SCLT3-8 chips
connected to the SPI bus in a "daisy-chain"
configuration. It offers a 16-bit digital input
STEVAL-IFP007V1
interface and indicates each sensor logic state
with an LED.
May 2009
Doc ID 15371 Rev 2
For further information contact your local STMicroelectronics sales office.
1/4
www.st.com
4