Echelon I/O Model Reference for Smart Transceivers and Neu Manual do Utilizador descarregar pdf (Página 14)

4 Introduction

Table 1. Summary of the Direct I/O Models

I/O Model Applicable I/O Pins

Total Pins

per Object

Input/Output Value Page

Bit Input

IO0 – IO11 1 0, 1 binary data 32

Bit Output

IO0 – IO11 1 0, 1 binary data 32

Byte Input IO0 – IO7 8 0 – 255 binary data 35

Byte Output IO0 – IO7 8 0 – 255 binary data 35

Leveldetect Input IO0 – IO7 1 Logic 0 level detected 38

Nibble Input Any adjacent four

in IO0 – IO7

4 0 – 15 binary data 40

Nibble Output Any adjacent four

in IO0 – IO7

4 0 – 15 binary data 40

Touch I/O IO0 – IO7 1 Up to 2048 bits of input or

output bits

Notes:

1. The IO11 pin for this I/O model is available only for the following device types: PL

3120-E4, PL 3150, PL 3170, FT 5000, and Neuron 5000.

See Chapter 2,

Direct I/O Models

, on page 31, for more information about the

direct I/O models.

Table 2. Summary of the Parallel I/O Models

I/O Model Applicable I/O Pins

Total Pins

per Object

Input/Output Value Page

Muxbus I/O IO0 – IO10 11 Parallel bidirectional port

using multiplexed

addressing

Parallel I/O

IO0 – IO11 12 Parallel bidirectional

handshaking port

Notes:

1. The IO11 pin for this I/O model is available only for the following device types: FT

5000 and Neuron 5000.

See Chapter 3,

Parallel I/O Models

, on page 51, for more information about the

parallel I/O models.

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