Omron SYSMAC CP Series User Manual

14-5
14 Serial Communications
CP2E CPU Unit Software User’s Manual(W614)
14-1 Serial Communications
14
14-1-2 Overview of Serial Communications
The CP2E CPU Units support the following types of serial communications.
14-1-2 Overview of Serial Communications
Connected devices Description
Communications
protocol
Built-in
RS-232C/
Serial
Port 1
Built-in
RS-485/
Serial
Port 2
Serial
Port 1
(EX)
Programmable Terminal Data can be exchanged
with PTs without using a
communications program
in the CPU Unit.
Note Only one PT can be
connected when
using a 1:N NT
Link. It is not possi-
ble to connect two
PTs.
Host Link or 1:N
NT Link
OK OK NO
General component Communicates with gen-
eral devices, such as bar-
code readers and
measuring instruments,
with an RS-232C or RS-
422A/485 port without a
command-response for-
mat. The TXD and RXD
instructions are executed
in the ladder program in
the CPU Unit to transmit
data from the transmis-
sion port or read data in
the reception port.
No-protocol
communications
OK OK OK
Modbus-RTU slave devices, such as
inverters
Data can be easily
exchanged with general
devices that support Mod-
bus-RTU slave functional-
ity (such as inverters) and
are equipped with an RS-
232C port or RS-
422A/485 port.
Modbus-RTU Easy
Master Function
OK OK OK
Data links between CPU Units Data links can be created
for up to nine CP-series
or CJ2M CPU Units,
including one Polling Unit
and up to eight Polled
Units. Up to 10 words can
be shared per Unit.
*1
Serial PLC Links
*2
OK OK OK
CP2E
RS-232C
NS-series PT
Host Link or NT Link
CP2E
RS-232C or RS-422A/485
General device with
serial communications
CP2E
RS-232C or RS-422A/485
Inverter
RS-422A/485
CP2E CPU Unit Polling Unit
Shared data
CP2E CPU Unit Polled Unit CP1L CPU Unit Polled Unit

Omron SYSMAC CP Series Specifications

General

Brand	Omron
Model	SYSMAC CP Series
Category	Computer Hardware
Language	English