Serial Communications Overview - Omron CP1L-EL20DR-D Operation Manual

Serial Communications
8-3 Serial Communications
8-3-1 Overview
Protocol
No-protocol Standard devices supporting serial communications
SYSMAC
CP1L
COM 01 03 05
NC 00 02 04
POWER
RUN
ERR/ALM
INH
LNK/ACT
BKUP
1
00 01
ANALOG INPUT COM(V+)
V1+ V2+ COM
MAC Address:
01234567890A
RS-232C or RS-422A/485
Standard device with
serial communications
Serial gate- OMRON components supporting CompoWay/F or Mod-
way (to bus-RTU slave devices
Compo-
Way/F or
SYSMAC
CP1L
Modbus-
COM 01 03
NC 00 02 04
RTU) POWER
RUN
ERR/ALM
INH
LNK/ACT
BKUP
1
00 01
ANALOG INPUT
COM(V+)
V1+ V2+ COM
MAC Address:
01234567890A
400
The CP1L-EL/EM CPU Units support the following serial communications
functions.
Connected devices
CP1L-EL/EM CPU Unit
07 09 11 01 03 05 07 09 11
06 08 10 00 02 04 06 08 10
2
02 03 04 06 00 01 03 04 06
COM 05 07 COM 02 COM 05 07
CP1L-EL/EM CPU Unit
05 07 09 11 01 03 05 07 09 11
06 08 10 00 02 04 06 08 10
2
02 03 04 06 00 01 03 04 06
COM 05 07 COM 02 COM 05 07
RS-485 (CompoWay/F or Modbus-RTU)
OMRON CompoWay/F-compliant components
or Modbus-RTU slave devices
Description
Communicates with standard
devices with an RS-232C or
RS-422A/485 port without a
command–response format.
Instead the TXD(236) and
RXD(235) instructions are exe-
cuted from the program to
transmit data from the trans-
mission port or read data in the
reception port. The frame
headers and end codes can be
specified.
Converts received FINS com-
mands into CompoWay/F or
Modbus-RTU commands and
transfers them on the serial
communications path.
Section 8-3
Serial Serial
port 1 port 2
OK OK
OK OK