Rockwell Automation 1771-SPI,D17716.5.122 SPI PROTOCOL INTERFACE - Manual (Page 15)

Chapter
2
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
DeviceĆtype 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
selfĆtuning temperature controller 26 00100110
general purpose temperature controller 27 00100111
volumetric blender 28 00101000
continuousĆweigh blender 29 00101001
batchĆweigh blender 2A 00101010
robot 2B 00101011
reserved for future devices 2C 00101100 to 11111110
Objective
Required Information from
the Device Manufacturer