1-19
1 Overview
CJ2 CPU Unit Hardware User’s Manual
1-3 Specifications
1
1-3-2 Performance Specifications
*14 Large Forward Open (CIP optional specification) must be supported in order for 505 to 1,444 bytes to be used as the data
size. Application is supported between CS/CJ-series PLCs. When connecting to devices from other manufacturers, make
sure that the devices support the Large Forward Open specification.
*15 If the maximum number is exceeded, refreshing will require more than one CPU Unit cycle.
*16 When changing parameters, however, the EtherNet/IP port where the change is made will be restarted. In addition, a tim-
eout will temporarily occur at the other node that was communicating with that port, and it will then recover automatically.
*17 The EtherNet/IP port supports an IGMP client, so unnecessary multicast packets are filtered by using an Ethernet switch
that supports IGMP snooping.
Item
CJ2H- CJ2M-
CPU64
(-EIP)
CPU65
(-EIP)
CPU66
(-EIP)
CPU67
(-EIP)
CPU68
(-EIP)
CPU
11/31
CPU
12/32
CPU
13/33
CPU
14/34
CPU
15/35
Commu-
nications
Communications Specifications
Maximum Link Data Size per Node 184,832 words 640 words
Maximum Data Size per Connection 252 or 722 words
*14
(Data is synchronized within each connection.)
20 words (Data is synchronized within each
connection.)
Number of Registrable Tag Set 256 (1 connection = 1 segment) 32 (1 connection = 1 segment)
Maximum Tag Set Size 722 words (One word is used when PLC status
is included in the segment.)
20 words (One word is used when PLC sta-
tus is included in the segment.)
Maximum Number of Tags Refresh-
able in a Single Cycle of CPU Unit
*15
Output/send (CPU Unit to EtherNet/IP): 256
Input/receive (EtherNet/IP to CPU Unit): 256
Output/send (CPU Unit to EtherNet/IP): 32
Input/receive (EtherNet/IP to CPU Unit): 32
Data Size Refreshable in a Single
Cycle of CPU Unit
*15
Output/send (CPU to EtherNet/IP): 6,432
words
Input/receive (EtherNet/IP to CPU): 6,432
words
Output/send (CPU Unit to EtherNet/IP): 640
words
Input/receive (EtherNet/IP to CPU Unit): 640
words
Change of Tag Data Link Parameter
Settings during Operation
OK
*16
Multi-cast Packet Filter
*17
OK
CIP Communications: Explicit Messages ---
Class 3 (Number of Connections) Number of connections: 128
UCMM (Non-connection Type) Maximum number of clients that can communi-
cate at the same time: 32
Maximum number of servers that can commu-
nicate at the same time: 32
Maximum number of clients that can commu-
nicate at the same time: 16
Maximum number of servers that can com-
municate at the same time: 16
CIP Routing OK
(CIP routing is enabled for the following remote Units: CJ1W-EIP21, CJ2H-CPU6@-EIP, CJ2M-
CPU3@, and CS1W-EIP21.)
FINS Communications ---
FINS/UDP OK
FINS/TCP 16 connections max.
EtherNet/IP Conformance Test Conforms to A5.
EtherNet/IP Interface 10Base-T/100Base-TX
Auto Negotiation/Fixed Setting