Omron CJ1W-EIP21 Operation Manuals page 12

CONTENTS
Section 2 Installing Ethernet Networks
2-1 Switch Settings on the Front Panel of the EtherNet/IP Unit ................................................ 2-2
2-2 Mounting the Unit to the CPU Rack or Expansion Rack ...................................................... 2-3
2-3 Selecting the Network Devices............................................................................................... 2-4
2-3-1 Recommended Network Devices................................................................................................ 2-4
2-3-2 Network Devices Manufactured by OMRON ............................................................................... 2-5
2-3-3 Ethernet Switch Types ................................................................................................................ 2-5
2-3-4 Ethernet Switch Functions .......................................................................................................... 2-5
2-3-5 Precautions for Ethernet Switch Selection .................................................................................. 2-6
2-4 Network Installation................................................................................................................. 2-8
2-4-1 Basic Installation Precautions ..................................................................................................... 2-8
2-4-2 Recommended Network Devices................................................................................................ 2-8
2-4-3 Precautions ................................................................................................................................. 2-8
2-5 Connecting to the Network ................................................................................................... 2-10
2-5-1 Ethernet Connectors ................................................................................................................. 2-10
2-5-2 Connecting the Cable................................................................................................................ 2-10
2-5-3 Noise Countermeasures for Contact Output Units.................................................................... 2-11
Section 3 Assigning Device Variables for CJ-series Units
3-1 Data Exchange with the CPU Unit.......................................................................................... 3-2
3-1-1 Data Flow .................................................................................................................................... 3-2
3-1-2 Specifying and Creating Variables .............................................................................................. 3-5
3-2 Device Variables for the CJ-series Unit ................................................................................. 3-6
3-2-1 Assigning Device Variables for CJ-series Units .......................................................................... 3-6
3-2-2 Device Variables for the CJ-series Unit for Software Switches ................................................... 3-6
3-2-3 Device Variables for the CJ-series Unit for Status ...................................................................... 3-8
3-2-4 Device Variables for the CJ-series Unit for Setup ..................................................................... 3-16
3-3 User Definition Settings for the Status Area....................................................................... 3-17
3-3-1 Introduction to User Definition Settings..................................................................................... 3-17
3-3-2 Setting User Definitions............................................................................................................. 3-17
3-3-3 Accessing the User-defined Status Area .................................................................................. 3-17
3-3-4 Status Information Assigned to the User-defined Area ............................................................. 3-18
Section 4 Determining IP Addresses
4-1 IP Addresses ............................................................................................................................ 4-2
4-1-1 IP Address Configuration ............................................................................................................ 4-2
4-1-2 Allocating IP Addresses .............................................................................................................. 4-3
4-1-3 Subnet Masks ............................................................................................................................. 4-3
4-1-4 CIDR ........................................................................................................................................... 4-3
4-2 Setting the IP Address of the EtherNet/IP Unit ..................................................................... 4-4
4-2-1 Determining IP Addresses .......................................................................................................... 4-4
4-2-2 Setting IP Addresses................................................................................................................... 4-5
4-2-3 Online Connection....................................................................................................................... 4-7
4-3 Private and Global Addresses.............................................................................................. 4-10
4-3-1 Private and Global Addresses................................................................................................... 4-10
4-3-2 Using a Private Address for the EtherNet/IP Unit ..................................................................... 4-11
4-3-3 Using a Global Address for the EtherNet/IP Unit ...................................................................... 4-12
10 CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)