Construction of systems in multi-vendor environments simplified
with Serial Gateway Function.
(CPU Unit Ver. 3.0 or later)
● Serial Communications Configuration Example
Serial Gateway (Serial Communications Units/Boards with Ver. 1.2 or later)
Enhanced Protocol Macro
Programming Devices
CX-Programmer
CX-Protocol
CX-Motion
Functionality
(Serial Communications Units/Boards with Ver. 1.2 or later)
Truly Seamless Incorporation of OMRON Components and Other Devices
into Networks
Programming
Console
Host computer, etc.
When the CPU Unit (Ver. 3.0 or later) or
5
● Baud rate increased from 38,400 bps to
57,600 bps for faster communications.
● Standard system protocol added for
greater connectability with components
and PLCs.
Serial Communications Board or Serial
FINS network
Communications Unit (Ver. 1.2 or later)
Host Link
Serial Communications Board
CPU Unit
Gateway
ASCII Unit
Serial Communications Unit
receive a FINS command containing a
CompoWay/F command (see note 1.) via
Peripheral bus
(Programming
Console bus)
Programmable
Terminal
Serial
Component/PLC
network or serial communications, the
communications
• CompoWay/F Master
command is automatically converted to a
• Host Link Master functions
• Mitsubishi Computer Link Master
protocol suitable for the message and
Note 1: FINS
Abbreviation for Factory Interface Network Service. A
command system for message services common to
OMRON networks. FINS commands can be sent across up
to 8 network levels*, including serial communications paths
using a serial gateway. (*Possible only with CS/CJ-series
CPU Unit Ver. 2.0 or later.)
forwarded using serial communications.
● CompoWay/F (See note 2.)
Wide Range of Applicable
Protocols Allows for High
Value-added Programs
(Possible only with Serial
Communications Units or Serial
Communications Boards)
● Host Link FINS
NT Link
Note 2: CompoWay/F
CompoWay/F is an integrated communications protocol
used for OMRON general-purpose serial communications.
It is used by Temperature Controllers, Digital Panel Meters,
Timer/Counters, Smart Sensors, Cam Positioners, Safety
Controllers, etc. (as of July 2004).
Protocol macros
The CS1 Series supports a wide range of
serial communications protocols, such as
Host Link, no-protocol, NT Link, peripheral
bus, and more. These allow for high
value-added programs such as MMI,
communications, and data processing.
Commercially-available
external device
Commercially-available Microcomputer,
external device
Non-OMRON
PLCs, etc.
etc.
● Serial Gateway System (Reference)
When CompoWay/F commands are enclosed
in FINS commands and sent to Serial
Communications Boards or Serial
General-purpose protocol
using BASIC in ASCII Unit
Temperature controller,
bar code reader, etc.
FINS command received
Protocol macros
Serial Gateway: FINS
command "capsule"
opened and contents
retrieved.
Sent as a CompoWay/
F command
Protocol macros
The Fastest Communications in the
Industry with High-speed NT Links
Communications Units (Ver. 1.2) or serial
ports on CPU Unit Ver. 3.0, the enclosed
CompoWay/F command is retrieved using a
Serial Gateway Function and sent as a
CompoWay/F command.
Combine with one of the NS Series
Programmable Terminals (NS12, NS10, or
NS7) to enable connecting Highspeed NT
Links. Using NT Link terminology together
with a communications speed of 115 Kbps
provides high-speed response.
● No-protocol
● Host Links
Sending Host Link and
FINS commands
Temperature
Controller
Smart Sensor
CPU Unit
RS-232C Port
Reading and writing
of I/O memory and
operating modes
OMRON Components
Serial
Serial
Communications
Board
Communications
Unit
● NT Links (1:N Mode)
More Ports for Even More
Serial Device Connections
Windows-based Software Simplifies
Serial Device Connections
TXD instruction
or RXD instruction
using Serial
Communications
Unit
TXD instruction or
RXD instruction
using CPU Unit's
RS-232 port or Serial
Communications Board
Device
Protocol macros make it easy to create serial
communications protocols (communications
frames, error checks, retries, error
Protocol macros for Serial Communications
Units and Boards can be created using the
CX-Protocol, thus enabling message tracing
and greatly reducing the time involved in
connecting various serial devices.
Response
Data input from a
bar code reader
Data output to printer
processing, etc.) to match those of remote
communications devices. Multiple ports are
provided for this function. Each PLC
supports up to 16 Serial Communications
Units (32 ports total) and one Serial
Communications Board (with 2 ports). This
makes it possible to connect up to 34
devices with serial communications at a
speed of 38.4 Kbps. Message length has
been increased from 256 to 1,000 bytes to
give communications more power than ever
before.
Supports No-protocol Communications
(Serial Communications Units/Boards with Ver. 1.2 or later)
Programmable
Terminal
Programmable
Terminal
● No-protocol communications supported for Serial
Communications Units and Serial Communications
Boards.
● This mode enables components to be connected to
multiple communications ports using no-protocol
communications.
● Serial port I/O instructions executable using no-protocol
communications from Serial Communications Units and
Serial Communications Boards (TXDU, RXDU, TXD,
and RXD) are supported for CPU Units with Ver. 3.0 or
later.
* PLC-to-PT connection in NT Link (1:N mode)
communications can be either one-to-one or one-to-many.
F-12
F-13
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