
CJ1W-PNT21 PROFINET IO Controller Unit
Section 2-2
3
2-2
CJ1W-PNT21 PROFINET IO Controller Unit
2-2-1
Features
PROFINET IO Controller
Unit
The CJ1W-PNT21 PROFINET IO Controller Unit is a CPU Bus Unit, which can
be installed on a CJ1 PLC System. The CJ1W-PNT21 controls the data
exchange between PROFINET IO Devices and a CJ1 PLC system over a
PROFINET IO network. For an overview of the PROFINET IO technology refer
to Appendix A PROFINET IO Technology.
CPU Bus Unit
A total of up to 16 CPU Bus Units can be mounted on a CPU or Expansion
Rack. The total of 16 includes one or more PROFINET IO Controller Units in
addition to all other CPU Bus Units on the rack.
Unit Control and Status
In total 25 control and status words are exchanged between the PROFINET IO
Controller Unit and a dedicated CIO memory area, of which the location is
related to the Unit Number of the PROFINET IO Controller Unit. The CIO
words provide status and diagnostics information on the Unit itself, the
PROFINET IO network and PROFINET IO Devices.
I/O Data
The maximum size of the I/O data exchanged between the CJ1W-PNT21 and
the PLC is 7168 words. The I/O data can be distributed over two input areas
and two output areas. Each of the input and output areas can be mapped to
any location in the DM Area, CIO Area, WR Area, HR Area, or the EM banks.
I/O Data Exchange
The PROFINET IO Controller initiates and maintains cyclic I/O data exchange
with its assigned IO Devices. In addition to the I/O data exchange, parameter
data and status information in a PROFINET IO Device can be accessed via
the PROFINET IO Controller Unit by acyclic messaging.
FINS/UDP Interface
The PROFINET IO Controller Unit is provided with a FINS/UDP Interface
enabling the PROFINET IO Controller to access SmartSlice I/O Units using
FINS messaging. Additionally, any device supporting a UDP interface (such as
a Personal Computer using CX-Server Lite) can access the CJ1 PLC System
allowing remote stations to configure and monitor the PROFINET IO Controller
and the CJ1 PLC System. The maximum length of the FINS message is 1500
bytes.
Facilitating IO Controller
Redundancy
To ensure a highly reliable implementation of the application, the PROFINET
IO Controller Unit and all PROFINET IO Devices offer the possibility of PLC
controller redundancy. To facilitate redundancy, two IO Controllers (one active
and one standby) in a networked connection CX-ConfiguratorFDT of I/O
Devices, ensures a fast change from active to standby PLC / IO Controller in
case of a single device or network malfunction.
Configuration
Before the PROFINET IO Controller Unit is able to control the PROFINET IO
Devices, it must first be configured using the configuration program CX-
ConfiguratorFDT. Without this configuration, the Unit will not be able to start
any data exchange, neither send any acyclic messages.
Troubleshooting Functions
The PROFINET IO Controller Unit provides a variety of troubleshooting
functions for prompt recovery in case of errors:
• Extensive self-diagnostic functions at startup.
• Data exchange flags indicating whether I/O data is being exchanged with
the IO Devices.
• Alarm flags indicating if new IO Device Alarm data is available.
Содержание CJ1W-CRM21
Страница 1: ...CJ1W PNT21 PROFINET IO Controller Unit OPERATION MANUAL Cat No W12E EN 02 ...
Страница 2: ......
Страница 7: ...vii ...
Страница 16: ......
Страница 26: ...Basic operating procedure Section 2 4 10 ...
Страница 46: ...Installation of Configuration Software Section 3 5 30 ...
Страница 76: ...Generic IO Device DTM Section 4 4 60 ...
Страница 151: ...135 Index The index specifies the data related to a specific subslot to be read or written acyclically ...
Страница 156: ...140 ...
Страница 164: ...146 ...
Страница 168: ...150 ...
Страница 170: ...Section 152 ...