Media Access Method; Baud Rate; Transmission Media; Maximum Transmission Distance Between Ethernet Switch And Node Maximum Number Of Cascade Connections - Omron NJ-series User Manual

Physical layer

Media access method

Modulation
Topology
Built-in
Ether-

Baud rate

Net/IP port

Transmission media

Maximum transmission distance between Ethernet switch and node
Maximum number of cascade connections

CIP service: Tag

data links (cyclic
communica-
tions)
Built-in
Ether-
Net/IP port
CIP message
service: Explicit
messages
Number of TCP sockets

Communications standard

EtherCAT master specifications

Physical layer
Modulation
Baud rate
Duplex mode
Topology
Built-in
Transmission media
EtherCAT
port Maximum transmission distance between nodes
Maximum number of slaves
Maximum process data size
Maximum process data size per slave
Communications cycle
Sync jitter
Internal clock
*1 Execution objects and variable tables (including variable names)
*2

Does not include Holding, DM, and EM Area memory for CJ-series Units.

*3

Does not include CIO and Work Area memory for CJ-series Units.

*4

This is the total for all axis types.

*5

This is the total number of axes that are set as servo axes or encoder axes and are also set as used axes.

*6

Data will be refreshed at the set interval, regardless of the number of nodes.

NJ-series CPU Unit Software User's Manual (W501)
Item

Maximum number of connections

*6
Packet interval

Permissible communications band

Maximum number of tag sets

Tag types

Number of tags per connection (i.e., per tag set)
Maximum link data size per node (total size for all
tags)

Maximum data size per connection

Maximum number of registrable tag sets

Maximum tag set size

*8
Multi-cast packet filter
Class 3 (number of connections)
Maximum number of clients that
can communicate at one time
UCMM (non-
connection
Maximum number of servers
type)
that can communicate at one
time
NJ501-
15 14 13

10BASE-T/100BASE-TX

CSMA/CD

Baseband
Star
100 Mbps (100Base-TX)
STP (shielded, twisted-pair) cable of Ethernet category 5, 5e or
higher
100 m

There are no restrictions if an Ethernet switch is used.

32
1 to 10,000 ms in 1.0-ms increments (*)

Can be set for each connection.

*7
3,000 pps (including heartbeat) (*)
32

Network variables, CIO, Work, Holding, DM, and EM Areas

8 (7 tags if Controller status is included in the tag set.)
19,200 bytes
600 bytes
32 (1 connection = 1 tag set)
600 bytes (Two bytes are used if Controller status is included in

the tag set.)

Supported
32 (clients plus server)
32
32
30 (*)

IEC 61158 Type12

Class B (Feature Pack Motion Control compliant)
100BASE-TX
Baseband
100 Mbps (100Base-TX)
Auto
Line, daisy chain, and branching
Twisted-pair cable of category 5 or higher (double-shielded
straight cable with aluminum tape and braiding)
100 m
192
Inputs: 5,736 bytes
Outputs: 5,736 bytes
However, the maximum number of process data frames is 4.
Inputs: 1,434 bytes
Outputs: 1,434 bytes
500, 1,000, 2,000, or 4,000 s (*)
1s max.
At ambient temperature of 55C: 3.5 to +0.5 min error per month
At ambient temperature of 25C: 1.5 to +1.5 min error per month
At ambient temperature of 0C: 3 to +1 min error per month
Appendices
NJ301-
12 11
A-5