161
System Configuration and Features
Section 6-1
Connecting within the
Same Segment
Use the UDP/IP version of the FINS communications service (i.e., FINS/
UDP). FINS/UDP is supported by many OMRON products and is compatible
with earlier Ethernet Units (CS1W-ETN21, CJ1W-ETN21 and CP1W-CIF41).
The CX-Programmer can be connected and used with FINS/UDP.
Connecting through
Multiple Segments
Use the TCP/IP version of the FINS communications service (i.e., FINS/TCP).
It provides automatic recovery at the TCP/IP layer from communications
errors (such as packet loss) that occur during multilevel routing.
For CX-Programmer, FINS/TCP can be used to directly connect to the PLC
online.
Connecting from a
Personal Computer with a
Dynamic Private IP
Address
Depending on whether or not the connection will be within the same segment,
either use an IP address conversion method for dynamic IP addresses in the
FINS/UDP service or use the FINS/TCP service.
It is possible to connect online to a PLC using the CX-Programmer from a
computer serving as a temporarily connected node or a permanent DHCP cli-
ent.
For CX-Programmer, FINS/TCP can be used to directly connect to the PLC
online.
6-1-2
Exchanging Data between OMRON PLCs using Ethernet
Connecting within the
Same Segment
Use the FINS/UDP, and construct applications using the SEND(090),
RECV(098), and CMND(490) instructions in the ladder program. The protocol
processing for FINS/UDP is simpler than for FINS/TCP, giving FINS/UDP cer-
tain advantages in terms of performance. Another feature of FINS/UDP is that
it can be used for broadcasting.
On the other hand, with FINS/UDP it is necessary to provide measures, such
as retries, for handling communications errors.
Connecting through
Multiple Segments
Use the FINS/TCP, and construct applications using the SEND(090),
RECV(098), and CMND(490) instructions in the ladder program. FINS/TCP is
supported by many OMRON products (CS1W-ETN21, CJ1W-ETN21 and
CP1W-CIF41). It provides automatic recovery at the TCP/IP layer from com-
munications errors (such as packet loss) that occur during multilevel routing.
MAC Address:
01234567890A
00
NC
02
04
06
08
10
00
02
04
06
08
10
01
COM
03
05
07
09
11
01
03
05
07
09
11
BKUP
ERR/ALM
LNK/ACT
SYSMAC
CP1L
POWER
RUN
INH
1
00
01
02
03
04
06
00
01
03
04
06
COM
02
COM
05
07
COM
COM(V+)
05
07
ANALOG INPUT
V1+ V2+ COM
2
MAC Address:
01234567890A
00
NC
02
04
06
08
10
00
02
04
06
08
10
01
COM
03
05
07
09
11
01
03
05
07
09
11
BKUP
ERR/ALM
LNK/ACT
SYSMAC
CP1L
POWER
RUN
INH
1
00
01
02
03
04
06
00
01
03
04
06
COM
02
COM
05
07
COM
COM(V+)
05
07
ANALOG INPUT
V1+ V2+ COM
2
Intranet
Production line A
Ethernet Unit
Ethernet
Router
FINS message
communications
Connecting through multiple segments:
Use FINS/TCP.
Production line B
Router
FINS message
communications
CP1L-EL/EM
Connecting within the same segment:
Use FINS/UDP.
CP1L-EL/EM
Содержание CP1L-EL20DR-D
Страница 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Страница 4: ...iv...
Страница 10: ...x...
Страница 22: ...xxii...
Страница 34: ...xxxiv Software Licenses and Copyrights 7...
Страница 178: ...144 Connecting the CX Programmer Section 5 1 Click the Connect button to connect and then connection online is completed...
Страница 192: ...158 Trial Operation and Debugging Section 5 3...
Страница 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Страница 666: ...632 Trouble Shooting Section 11 7...
Страница 696: ...662 Standard Models Appendix A...
Страница 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Страница 836: ...802 PLC Setup Appendix G...
Страница 838: ...804 TCP Status Transitions Appendix H...
Страница 840: ...806 Ethernet Network Parameters Appendix I...
Страница 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Страница 844: ...810 Ethernet Specifications Appendix K...
Страница 851: ...Index 817 work words 118 write protection 447...
Страница 852: ...818 Index...
Страница 854: ...820 Revision History...
Страница 855: ......