1 Introduction
1-8
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
*1 If tag data links are being used, use 100Base-TX.
*2 Here, pps means “packets per second” and indicates the number of packets that can be processed in one sec-
ond.
*3 To use a data size of 505 bytes or higher, the system must support a large forward open (an optional CIP spec-
ification). The CS/CJ-series Units support a large forward open, but before connecting to nodes of other com-
panies, confirm that those devices also support it.
*4 If the parameters of the EtherNet/IP Unit are changed, the Unit is restarted. When other nodes are in commu-
nications with the affected node, the communications will temporarily time out and automatically recover later.
*5 Because the EtherNet/IP Unit is equipped with an IGMP client (version 2), unnecessary multicast packets can
be filtered by an Ethernet switch that supports IGMP snooping.
*6 The EtherNet/IP Unit uses the TCP/UDP port numbers shown in the following table.
Do not set the same port number for more than one TCP/UDP service.
*7 A CPU Unit with unit version 1.01 or later and Sysmac Studio version 1.02 or higher are required to use CPU
routing.
SNMP
Agents SNMPv1 or SNMPv2c
MIB MIB-II
EtherNet/IP conformance test Conforms to A8
Ethernet interface
10Base-T or 100Base-TX
Auto negotiation or fixed settings
Applicable CPU Units
NJ301-@@@@ CPU Units (unit version 1.01 or later)
NJ501-@@@@ CPU Units (unit version 1.01 or later)
Unit current consumption 5 VDC 410 mA max.
Weight 94 g max.
Dimensions 31 × 90 × 65 mm (W × H × D)
Service Protocol Port number Remarks
EIP data links UDP 2222 Fixed values
Used by system UDP 2223, 2224
CIP messages TCP 44818
FTP client data transfer port TCP 20
DNS client TCP/UDP 53
BOOTP client UDP 68
FTP client control port TCP 21 You can change the port number in
the Unit Settings on the Sysmac
Studio.
SNTP client UDP 123
SNMP agent UDP 161
SNMP trap UDP 162
Item Specifications
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