Tcp/Udp Message Service; Outline Of Tcp/Udp Message Service; Specifications Of Tcp/Udp Message Service; Settings Required For Tcp/Udp Message Service - Omron NJ Series User Manual

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TCP/UDP Message Service

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Outline of TCP/UDP Message Service

TCP/UDP message service provides a simple form of TCP/UDP socket communications intended for
access to CIP objects of the Controller from a system where EtherNet/IP is not supported. With this
function, you can change settings and perform I/O control for the Controller and Units connected to the
NX Bus. TCP/UDP message service can be performed simultaneously with tag data link communica-
tions.
This function is available only with NX102 CPU Units.
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Specifications of TCP/UDP Message Service

Maximum number of clients which can
be connected simultaneously
Maximum message size
Maximum NX data output size
Maximum NX data input size
Port number
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Settings Required for TCP/UDP Message Service

When you use the TCP/UDP message service, you need to set the following unit settings.
The settings can be configured with the Sysmac Studio version 1.23 or higher.
Sysmac Studio Unit Settings
Tab Page

TCP/UDP message service

*1. When you use the TCP socket, the following port numbers are used by the system and cannot be set by the
user: 20, 23, 25, 80, 110, 9610, and 44818.
When you use the UDP socket, the following port numbers are used by the system and cannot be set by the
user: 25, 53, 68, 110, 2222, 2223, 2224, 9600, and 44818.
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Command Format Specifications

NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)
Item
32 (for UDP and TCP each)
Request: 492 bytes
Response: 496 bytes
Maximum size of NX output data which can be written with the
TCP/UDP message service
488 bytes
Maximum size of NX input data which can be read with the TCP/UDP
message service
496 bytes
Port number used in the TCP/UDP message service
Default value: 64000 (decimal number)
Setting
Use/Do not use
TCP/UDP message
service
Port 1-Port No.
Port 2-Port No.
9 Socket Service
Specifications
Setting condi-
Setting range
tions
Optional Use/Do not use Do not use
Optional
1024-65535
Optional
1024-65535
9
Default
64000
*1
64000
*1
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