![background image](http://html1.mh-extra.com/html/omron/sysmac-cj1w-eip21/sysmac-cj1w-eip21_operation-manuals_742257109.webp)
4-9
4 Determining IP Addresses
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
4-2 Setting
th
e IP Ad
dress
of the EtherNet/IP Unit
4
4-2-3 Online
Connectio
n
Precautions for Correct Use
Precautions for Correct Use
•
If the IP address is duplicated or not set correctly, communications are not possible via the
EtherNet/IP network.
•
The IP address range shown below is used by the system and cannot be specified.
169.254.0.0 to 169.254.255.255
192.168.255.0 to 192.168.255.255
•
Due to Ethernet restrictions, you cannot specify the IP addresses that are described below.
•
An IP address that is all 0’s or all 1’s
•
IP addresses that start with 127, 0, or 255 (decimal)
•
An IP address with a host ID that is all 0’s or all 1’s
•
An IP address with a network ID that is all 0’s or all 1’s
•
Class-D IP addresses (224.0.0.0 to 239.255.255.255)
•
Class-E IP addresses (240.0.0.0 to 255.255.255.255)
Connecting from a Saved Project
The connection configuration that is set (USB or EtherNet/IP) is saved in the project. (The file is
xxx.smc.) If you open a saved project on the Sysmac Studio, you can connect to the EtherNet/IP
network without redoing the settings.
Checking the Current IP Address
You can use the following device variable for the CJ-series Unit to check the IP address that is set for
the EtherNet/IP Unit.
The IP address is stored as shown below.
Device variable name for CJ-
series Unit
Data
type
R/W
Meaning
Description
*_IPAdrCfg
DWORD
RW
IP address dis-
play/setting area
Default: 00000000
*_IPAdr1Cfg
USINT
RW
IP Address 1
Part (1) of the IP Address of the Eth-
erNet/IP Unit
*_IPAdr2Cfg
USINT
RW
IP Address 2
Part (2) of the IP Address of the Eth-
erNet/IP Unit
*_IPAdr3Cfg
USINT
RW
IP Address 3
Part (3) of the IP Address of the Eth-
erNet/IP Unit
*_IPAdr4Cfg
USINT
RW
IP Address 4
Part (4) of the IP Address of the Eth-
erNet/IP Unit
First byte
Byte
First byte + 1
IP Address: (1).(2).(3).(4) (hex)
(1)
(2)
(3)
(4)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Содержание SYSMAC CJ1W-EIP21
Страница 8: ...Manual Structure 6 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 10: ...Sections in this Manual 8 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 20: ...Read and Understand this Manual 18 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 42: ...Revision History 40 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 68: ...1 Introduction 1 26 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 80: ...2 Installing Ethernet Networks 2 12 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 130: ...6 Testing Communications 6 4 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 206: ...7 Tag Data Link Functions 7 76 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 246: ...8 Message Communications 8 40 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 266: ...9 FTP Server 9 20 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 374: ...13 Troubleshooting 13 56 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 431: ...Index 1 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495 I Index...
Страница 436: ...Index 6 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495 Index...
Страница 437: ......