Omron CP1L-EL20DR-D, Руководство по эксплуатации

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Basic Setting for Ethernet Section 6-4
Note (1) Make settings using the PLC settings function in the CX-Programmer (to
be included in version 9.4 and higher).
(2) For details, refer to 2-9 Basic Settings in the Ethernet Units Construction
of Networks Operation Manual (Cat. No. W420-E1).
6-4-4 Communications Test
If the basic settings (in particular the IP address and subnet mask) have been
made correctly, then it should be possible to communicate with nodes on the
Ethernet.
The following describes how to use the PING command to perform communi-
cations testing between CP1L-EL/EM series PLCs.
PING Command
The PING command sends an echo request packet to a remote node and
receives an echo response packet to confirm that the remote node is commu-
nicating correctly. The PING command uses the ICMP echo request and
responses. The echo response packet is automatically returned by the ICMP.
The PING command is normally used to check the connections of remote
nodes when configuring a network. The PLC supports the ICMP echo reply
functions.
If the PLC returns a normal response to the PING command, then the remote
nodes are physically connected correctly.
The PLC automatically returns the echo response packet in response to an
echo request packet sent by another node (host computer or other Ethernet
Unit).
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
TCP UDP
ICMP
IP
Ethernet
Echo request
Echo response
Remote Node
(host computer or Ethernet Unit)
CP1L-EL/EM