Datasheet

CJ2M-CPU3@/-CPU1@/-MD21@
8
*6. The EtherNet/IP port is built into CJ2M-CPU3@ only.
*7. "Packets per second" is the number of communications packets that can be processed per second.
*8. Unit version 2.0 of built-in EtherNet/IP section: 20 words.
*9. If the maximum number is exceeded, refreshing will require more than one CPU Unit cycle.
*10.When changing parameters, however, the EtherNet/IP port where the change is made will be restarted. In addition, a timeout will temporarily
occur at the other node that was communicating with that port, and it will then recover automatically.
*11.The EtherNet/IP port supports an IGMP client, so unnecessary multicast packets are filtered by using an Ethernet switch that supports IGMP
snooping.
Item
CJ2M-
CPU11/31 CPU12/32 CPU13/33 CPU14/34 CPU15/35
Commu-
nications
Peripheral (USB) Port USB 2.0-compliant B-type connector
Baud Rate 12 Mbps max.
Transmission Distance 5 m max.
Serial Port
• CJ2M-CPU1@ interface: Conforms to EIA RS-232C.
• CJ2M-CPU3@: No serial ports with default system
One of the following Serial Option Boards can be mounted.
• CP1W-CIF01 RS-232C Option Board
• CP1W-CIF11 RS-422A/485 Option Board (not isolated, max. transmission distance: 50 m)
• CP1W-CIF12 RS-422A/485 Option Board (isolated, max. transmission distance: 500 m)
Communications Method Half-duplex
Synchronization Method Start-stop
Baud Rate 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, or 115.2 (kbps)
Transmission Distance 15 m max.
EtherNet/IP Port *6 −
Transmission Specifications
Media Access Method CSMA/CD
Modulation Baseband
Transmission Paths Star
Baud Rate 100 Mbps (100Base-TX)
Transmission Media Shielded twisted-pair (STP) cable; Categories: 5, 5e
Transmission Distance 100 m (between ethernet switch and node)
Number of Cascade Connections No restrictions if ethernet switch is used.
Communications Specifications
CIP Communications: Tag Data Links
Number of Connections 32
Packet Interval (Refresh period)
1 to 10,000 ms (Unit: 0.5 ms)
Can be set for each connection. (Data will be refreshed at the set interval, regardless of the number
of nodes.)
Permissible Communications Band 3,000 packets per second *7
Number of Registerable Tag 32
Type of Tags CIO, DM, EM, HR, WR, and Network symboles
Number of Tags per Connection 8 (Seven tags if PLC status is included in the segment.)
Maximum Link Data Size per Node
(total size of all tags)
640 words
Maximum Data Size per Connection
640 words *8
(Data is synchronized within each connection.)
Number of Registrable Tag Set 32 (1 connection = 1 segment)
Maximum Tag Set Size
640 words *8
(One word is used when PLC status is included in the segment.)
Maximum Number of Tags
Refreshable in a Single Cycle of
CPU Unit *9
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 *9
Output/send (CPU to EtherNet/IP) : 640 words
Input/receive (EtherNet/IP to CPU): 640 words
Change of Tag Data Link Parameter
Settings during Operation
OK *10
Multi-cast Packet Filter *11 OK
CIP Communications: Explicit
Messages
−
Class 3 (Connection Type) Number of connections: 128
UCMM (Non-connection Type)
Maximum number of clients that can communicate at the same time : 16
Maximum number of servers that can communicate 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