CS1W-EIP21 Datasheet, PDF (4/8 Pages) Omron Electronics LLC – SYSMAC CS-series EtherNet/IP Unit

Communications Specifications
CS1W-EIP21
Item
Specifications
Number of connections
256
Packet interval (refresh 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.)
Allowed communications bandwidth
per Unit
6000 pps (See note 1.)
Number of tag sets
256
Tag types
CIO Area, DM Area, EM Area, Holding Area, and Work Area
Number of tags per connection
(= 1 tag set)
8 (7 tags when the tag set contains the PLC status)
CIP service
Tag data links
(Cyclic
communications)
Maximum link data size per node
Maximum data size per connection
Number of registrable tag sets
184,832 words
252 words or 722 words (See note 2.)
Note: Data synchronicity is maintained within each connection.
256
(1 connection = 1 tag set)
Maximum size of 1 tag set
722 words
(The PLC status uses 1 word when the tag set contains the PLC status.)
Maximum number of tags that can be
refreshed per CPU Unit cycle
(See note 3.)
Output/Transmission (CPU to EtherNet/IP): 19
Input/Reception (EtherNet/IP to CPU): 20 (See note 4.)
Data that can be refreshed per CPU Output/Transmission (CPU to EtherNet/IP): 7,405 words
Unit cycle (See note 3.)
Input/Reception (EtherNet/IP to CPU): 7,405 words
Changing tag data link parameters
during operation
Supported (See note 5.)
Multicast packet filter function
(See note 6.)
Supported
Class 3 (connected)
Number of connections: 128
Explicit
messaging
UCMM (unconnected)
Number of clients that can communicate at one time: 32 max.
Number of servers that can communicate at one time: 32 max.
CIP routing
CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU6@-EIP, CJ2M-CPU3@
FINS service
FINS/UDP
FINS/TCP
Supported
16 connections max.
EtherNet/IP conformance test
Conforms to A5
Ethernet interface
10BASE-T or 100BASE-TX
Auto Negotiation or fixed settings
Note: 1. In this case, pps means "packets per second" and indicates the number of packets that can be processed in one second.
2. To use 505 to 1,444 bytes as the data size, the system must support the Large Forward Open standard (an optional CIP specification).
The SYSMAC CS/CJ-series Units support this standard, but before connecting to nodes of other companies, confirm that those devices
also support it.
3. If the maximum data size is exceeded, the data refreshing with the CPU Unit will extend over two or more cycles.
4. If status layout is selected in the user settings, the maximum number of tags that can be received is 19 tags.
5. If parameters are changed in the EtherNet/IP Unit, however, the EtherNet/IP Unit will be restarted. When other nodes are communicating
with the affected node, the communications will temporarily time out and automatically recover later.
6. Because the EtherNet/IP Unit is equipped with an IGMP client, unnecessary multicast packets can be filtered by using a switching hub
that supports IGMP snooping.
7. The EtherNet/IP Unit uses the TCP/UDP port numbers shown in the following table.
Service
Tag data links
Class 3, UCMM
DNS
FINS/UDP service
FINS/TCP service
FTP
SNTP
SNMP
SNMP trap
Protocol
UDP
TCP/UDP
UDP
UDP
TCP
TCP
UDP
UDP
UDP
Port number
2222
44818
53
9600
9600
20, 21
123
161
162
Remarks
Fixed value
Port numbers in the Unit Setup can be
changed with the CX-Programmer.
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