Watlow PM LEGACY™ Limit Controller
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Chapter 4 Home Page
PM _ _ _ _ _ - [1] A _ _ _ _ _
Instance 2:
PM _ _ _ _ _ - [2] A _ _ _ _ _
To learn more about the Modbus protocol point your browser to
http://www.modbus.org
.
Common Industrial Protocol (CIP) Introduction to CIP
Both DeviceNet and EtherNet/IP use open object based programming tools and use the same ad-
dressing scheme. In the following menu pages notice the column header identified as CIP. There you
will find the Class, Instance and Attribute in hexadecimal, (decimal in parenthesis) which makes up the
addressing for both protocols.
The CIP communications instance will always be instance 2.
Data Types Used with CIP
int
= Signed 16-bit integer
uint
= Signed 16-bit integer
dint
= Signed 32-bits, long
real
= Float, IEEE 754 32-bit
string
= ASCII, 8 bits per character
sint
= Signed 8 bits , byte
T
o learn more about the DeviceNet and EtherNet/IP protocol point your browser to
http://www.odva.
org
.
Profibus DP
To accommodate for Profibus DP addressing the following menus contain a column identified as Pro-
fibus Index. Data types used in conjunction with Profibus DP can be found in the table below.
The Profibus communications instance will always be instance 2.
real
= Float, IEEE 754 32-bit
int
= Signed 16-bit integer
byte
= 8-bits
To learn more about the Profibus DP protocol point your browser to
http://www.profibus.org
