Omron CJ1W-EIP21 - 2 Installing Ethernet Networks

10
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
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