UK
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8 EtherNet/IP
8.1 EtherNet/IP object classes, messages and services
The device supports the Common Industrial Protocol (CIP) according to the ODVA
specification V3�20� EtherNet/IP™ uses the Common Industrial Protocol as the
application layer� IP and TCP or UDP are used for the network and transport
layers� CIP and EtherNet/IP™ are standardised by the ODVA on a manufacturer-
neutral basis� The Common Industrial Protocol is an object-oriented protocol with
two different types of communication between a controller and termination devices�
8.2 EtherNet/IP data model
Input (PLC)
Source
Type Size
Use
Analogue inputs (DC)
<input name>
Real
4 bytes
Value of the signal connected
to the analogue input (IN1, IN2)
External inputs
<input name>
Real
4 bytes
Value of the external input (External_xx)
Objects
Time domain
<object name>
Value
Real
4 bytes
Object value in SI unit (m/s², m/s)
State
Byte
1 byte
(Alarm) state of the object
0: OK
1: warning alarm
2: damage alarm
3: inactive
4: error (description: see Error)
Error
Word
2 bytes
Error code for object state
Hex0000: no error
Hex0001: internal error
Hex0002: calculation error
Hex0004: speed out of range
Hex0008: speed unstable
Hex0010: invalid base line
Hex0020: invalid reference value (1)
Hex0040: invalid reference value (2)
Hex0100: deactivated by signal weighting
Hex0200: reference value out of range
Hex1000: warning alarm
Hex2000: damage alarm
Hex8000: object inactive (by variant)
Rotational
speed
Real
4 bytes
Trigger - rotational speed
Reference
value
Real
4 bytes
Trigger - reference value