Data brief

For further information contact your local STMicroelectronics sales office.

May 2009

Doc ID 15371 Rev 2

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STEVAL-IFP007V1

16-bit PLC digital input card demonstration board

based on the SCLT3

Features

chip/STEVAL-IFP007V1 board)

inputs

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

interface and indicates each sensor logic state

with an LED.

STEVAL-IFP007V1

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