Omron CJ1W-EIP21 User Manual
17
EtherNet/IP Unit and Built-in EtherNet/IP Port Specifications
Section 2-1
2-1-3
Communications Specifications
Item
CS1/CJ1
CJ2H
CJ2M
CIP
service
service
Tag data
links
(Cyclic
communi-
cations)
links
(Cyclic
communi-
cations)
Number of connections 256
32
Packet interval (refresh
cycle)
cycle)
0.5 to 10,000 ms (in 0.5-ms units)
Can be set independently for each connection.
(Data is refreshed over the network at the preset
interval and does not depend on the number of
nodes.)
interval and does not depend on the number of
nodes.)
1 to 10,000 ms (in 0.5-
ms units)
ms units)
Can be set indepen-
dently for each connec-
tion.
dently for each connec-
tion.
(Data is refreshed over
the network at the pre-
set interval and does
not depend on the
number of nodes.)
the network at the pre-
set interval and does
not depend on the
number of nodes.)
Allowed communica-
tions bandwidth per
Unit
tions bandwidth per
Unit
6000 pps (See note 1.)
Note Including the heartbeat.
3000 pps (See note 1.)
Note Including the
heartbeat.
Number of tags that
can be registered
can be registered
256
32
Tag types
CIO Area, DM Area, EM Area, Holding Area, Work Area, and network
symbols (See note 8.)
symbols (See note 8.)
Number of tags per
connection (= 1 tag
set)
connection (= 1 tag
set)
8 (7 tags when the tag set contains the PLC status)
Maximum link data size
per node
per node
184,832 words
640 words
Maximum data size per
connection
connection
252 words or 722 words (See note 2.)
Note Data synchronicity is maintained within
each connection.
20 words
Note Data synchronic-
ity is maintained
within each con-
nection.
within each con-
nection.
Number of registrable
tag sets
tag sets
256
(1 connection = 1 tag set)
(1 connection = 1 tag set)
32
(1 connection = 1 tag
set)
(1 connection = 1 tag
set)
Maximum size of 1 tag
set
set
722 words
(The PLC status uses 1 word when the tag set
contains the PLC status.)
(The PLC status uses 1 word when the tag set
contains the PLC status.)
20 words
(The PLC status uses 1
word when the tag set
contains the PLC sta-
tus.)
(The PLC status uses 1
word when the tag set
contains the PLC sta-
tus.)
Maximum number of
tags that can be
refreshed per CPU Unit
cycle (See note 3.)
tags that can be
refreshed per CPU Unit
cycle (See note 3.)
Output/Transmission
(CPU
(CPU
→
EtherNet/IP):
19
Input/Reception
(EtherNet/IP
(EtherNet/IP
→
CPU):
20 (See note 4.)
Output/Transmission
(CPU
(CPU
→
EtherNet/IP):
256
Input/Reception
(EtherNet/IP
(EtherNet/IP
→
CPU):
256
Output/Transmission
(CPU
(CPU
→
EtherNet/IP):
32
Input/Reception
(EtherNet/IP
(EtherNet/IP
→
CPU):
32
Data that can be
refreshed per CPU Unit
cycle (See note 3.)
refreshed per CPU Unit
cycle (See note 3.)
Output/Transmission
(CPU
(CPU
→
EtherNet/IP):
7,405 words
Input/Reception
(EtherNet/IP
(EtherNet/IP
→
CPU):
7,405 words
Output/Transmission
(CPU
(CPU
→
EtherNet/IP):
6,432 words
Input/Reception
(EtherNet/IP
(EtherNet/IP
→
CPU):
6,432 words
Output/Transmission
(CPU
(CPU
→
EtherNet/IP):
640 words
Input/Reception
(EtherNet/IP
(EtherNet/IP
→
CPU):
640 words
Changing tag data link
parameters during
operation
parameters during
operation
Supported (See note 5.)
Multicast packet filter
function (See note 6.)
function (See note 6.)
Supported