Rockwell-automation 1771-SPI,D17716.5.122 SPI PROTOCOL INTERFACE Uživatelský manuál stáhnout pdf (Strana 15)

Chapter

2-1

Important Information that You Need

to Set Up the SPI Network

This chapter tells you what information you need from the device

manufacturer, and how to wire an SPI network.

To use a device on the SPI network, you need to know the following

information about the device from the device manufacturer:

Device-type IDs

Address code to identify the device on the SPI network

How to set the address code in the device

Communication rate

Data Types and Data Codes for Transfer to/from Devices on the Network

Information that You Need to configure the SPI module

Information that you Send to / Receive From Devices Via the SPI Module

Devicetype IDs

Each device manufactured for use on the SPI network must have an SPI-

specified device-type identification number (device ID). Currently, there

are about 10 SPI-specified device ID codes. Examples of device types and

their ID codes include:

Type of Device (Device Type) ID ID Code

mold temperature controller 20 00100000

chiller 21 00100001

dryer 22 00100010

loader 23 00100011

melt pump 24 00100100

additive feeder 25 00100101

selftuning temperature controller 26 00100110

general purpose temperature controller 27 00100111

volumetric blender 28 00101000

continuousweigh blender 29 00101001

batchweigh blender 2A 00101010

robot 2B 00101011

reserved for future devices 2C 00101100 to 11111110

Objective

Required Information from

the Device Manufacturer

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 61 62

Žádné komentáře

Rockwell-automation 1771-SPI,D17716.5.122 SPI PROTOCOL INTERFACE Uživatelský manuál Strana 15