CJ1W-PNT21 Omron, CJ1W-PNT21 Datasheet - Page 109
CJ1W-PNT21
Manufacturer Part Number
CJ1W-PNT21
Description
CJ Profinet Master
Manufacturer
Omron
Datasheet
1.CJ1W-PNT21.pdf
(131 pages)
Specifications of CJ1W-PNT21
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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IO Controller
A PROFINET IO Controller is the central device in the PROFINET network. It has the control over the state of
the network and processes the data and alarms. The IO Controller typically is a PLC Unit that processes the
data and alarms in the user program. It establishes the connection to the devices on the network during system
start-up.
IO Supervisor
A PROFINET IO Supervisor is an optional device in the network, which has temporary access to the field
devices. It is typically an engineering station for monitoring or commissioning of the system.
IO Device
A PROFINET IO Device is a remotely connected field device, close to the manufacturing process. It is
configured by the IO Controller to cyclically interchange process data with the IO Controller. The IO Device can
have multiple connections to different IO Controllers / IO Supervisors in the network and will generate alarms if
problems occur with the communication or the manufacturing process.
Device Model
The PROFINET IO application layer describes the modules of an IO Device in a similar way as for PROFIBUS
DP. A PROFINET IO Device consists of slots for which the modules/submodules can be inserted. The technical
data concerning the slots and subslots are defined in the GSD file of a device.
Slot
A Slot is the physical place of insertion of a module in an IO Device. Various subslots are located in the various
slots, which contain data for cyclic data exchange.
Subslot
Subslots provide an additional addressing layer. They enable grouping of similar channels within a slot. Each
slot has to comprise at least one subslot with [1:n] I/O channels.
Index
The index specifies the data related to a specific subslot, to be read or written acyclically.
96
Number PROFINET
1
2
3
4
5
6
IO System
IO Controller
IO Supervisor
Ethernet
User Interface
IO device
PROFIBUS
DP master
system
DP Master
PG/PC Class
2 DP master
PROFIBUS
HMI
DP slave
Comment
Device that addresses the connected IO
units by exchanging input and output
signals with them.
This controller normally runs the
automation program.
Device (e.g. a PC) for commissioning and
diagnostics.
Network infrastructure.
Device for operating and monitoring the
functions of the system.
Device for receiving sensor signals and
controlling actuators like valves, switches
and frequency converters.
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