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CHAPTER 7 COMMUNICATION OF THE ETHERNET ADAPTER MODULE
7
7.2 C
ommunication Usin
g the On-deman
d Function
7.2.1 System co
nfigur
ation
7.2
Communication Using the On-demand Function
This section provides an example of where a send request is issued from the CPU module to the Ethernet adapter
module and data is sent to the external device.
*1
*1
Check the corresponding serial No. and software version. (
To perform the on-demand function, use the REMFR and REMTO instructions.
The on-demand function is supported by the master/local module with a serial number (first five digits) of "12072" or later.
The on-demand function is supported by the master/local module with a serial number (first five digits) of "12072" or later.
7.2.1
System configuration
A communication example using the on-demand function is explained with the same system configuration as SLMP
communication and cyclic transmission. (
7.2.2
Specifications of send data using the on-demand function
The following table lists the specifications of items such as the number of on-demand data simultaneously used and
communication data code.
communication data code.
Item
Specification
Number of channels simultaneously used
Up to 4 channels
Send data length
Up to 1920 bytes (up to 960 words)
Protocol
TCP, UDP
Available connection
• Connection for users (TCP only)
• Auto-open UDP port
• Auto-open UDP port
Frame format
SLMP
Communication data code setting
• Binary code communication
• ASCII code communication
• ASCII code communication