Omron V680S Series User Manual page 14

Section 1
Product Overview
 Simple Connection with PROFINET
The Reader/Writer communicates with the host device through PROFINET. PROFINET is an industrial
network that uses the PROFIBUS DP protocol on industrial Ethernet (100 Mbps, full duplex). The
specifications are open standards managed by PI (PROFIBUS & PROFINET International).
PROFINET is used by a wide range of industrial devices.
Because PROFINET uses standard Ethernet technology, various general-purpose Ethernet devices
can be used in the network. You can easily increase the number of Reader/Writers by using a
Switching Hub.
Reader/Writer
Reader/Writer
Reader/Writer
To connect more than one Reader/Writer, all devices must be set to a unique IP address.
There are two PROFINET standards: PROFINET IO and PROFINET CBA. The Reader/Writers are
applicable to a PROFINET IO network because communications for I/O data is performed between a
controller and devices. The Reader/Writers use RT (realtime) communications for cyclic data
communications with PROFINET IO. Conformance class A is supported along with the basic functions
of RT communications.
The functions below are defined in Class A.
Function
Cyclic data exchange
Acyclic parameter data /
device identification
Device/network diagnosis
RFID System
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User's Manual
(PROFINET)
24-VDC power supply
24-VDC power supply
24-VDC power supply
Overview
Real-time data communication between the I/O controller and I/O devices at determined cycles.
Set by I/O data CR.
Used for parameter settings, I/O device configuration, and reading of device information.
Set by record data CR.
Communication for the purpose of sending alarms and statuses from I/O devices to the I/O con-
troller.
Set by Alarm CR.
Switching Hub
PROFINET
You can use a Switching Hub to easily increase
the number of Reader/Writers.
* A separate power supply is required to operate
the Reader/Writers.
PLC