Item CK3M-CPU101 CK3M-CPU111 CK3M-CPU121
EtherCAT com-
munications
specifications
Communications protocol None EtherCAT protocol
Baud rate 100 Mbps
Physical layer 100BASE-TX (IEEE 802.3)
Topology
Line, daisy chain, branching, and
ring
*1
Transmission media
Twisted-pair cable of category 5 or
higher (double-shielded cable with
aluminum tape and braiding)
Transmission distance
Distance between nodes: 100 m or
less
Maximum number of slaves 32
Range of node addresses that
can be set
1 to 32
Ethernet com-
munications
specifications
Baud rate 100 Mbps
Physical layer 100BASE-TX (IEEE 802.3)
Frame length 1,514 bytes max.
Media access method CSMA/CD
Modulation Baseband
Topology Star
Transmission media
Twisted-pair cable of category 5, 5e, or higher (shield-
ed cable)
*2
Maximum transmission distance
between Ethernet switch and
node
100 m
Maximum number of cascade
connections
There are no restrictions if an Ethernet switch is used.
EtherNet/IP
tag data link
(cyclic commu-
nications)
*3
Number of con-
nections
32
Requested
packet interval
(RPI)
1 to 1,000 ms
(0.5 ms units)
Allowed com-
munications
bandwidth per
Unit
3,200 pps
*4
IO connection
size
Input: 504 bytes max.
Output: 504 bytes max.
EtherNet/IP
CIP message
service
*3
UCMM (uncon-
nected mes-
sage)
Number of servers that can perform communications
simultaneously: 32
EtherNet/IP conformance test CT17 compliant
USB port
Physical layer
USB 2.0 compliant, type A connector. Output voltage:
5 V
, 0.5 A max.
T
ransmission distance 3 m max.
Current consumption
5 VDC: 7.2 W
max.
(including End
Cover)
5 VDC: 7.8 W max.
(including End Cover)
Dimensions (height × depth × width) 90(H)/80(D)/63.2(W)
3 Configuration Units
3-4
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
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