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CHAPTER 7 COMMUNICATION OF THE ETHERNET ADAPTER MODULE
7
7.2 Communication Using the On-demand Function
7.2.6 On-demand data format
(c) Request destination module I/O No., request data length, monitoring timer,
command, and subcommand
The following values are stored for each item:
(d) Send data
The value stored in the buffer memory in the Ethernet adapter module is stored.
( Page 96, Section 7.2.5 (5) (h))
(2) Precautions when setting on-demand data
For the send data formats (binary code/ASCII code) of a message at the time of sending on-demand data, setting
locations differ between the subheader to the subcommand and the send data.
Setting item Setting value
Request destination module I/O No.
03FF
H
Request data length
The data length from the monitoring timer to the send data is
stored in 4-digit hexadecimal format.
Monitoring timer
0000
H
Command
2101
H
Subcommand
0000
H
Protocol Subheader to subcommand Send data
Connection for users (TCP)
Setting in the configuration tool
(
Page 191, Section 10.3.3 (1))
Setting in the buffer memory
(
Page 96, Section 7.2.5 (5) (h))
Auto-open UDP port
Setting in the buffer memory
( Page 93, Section 7.2.5 (4) (b))
Send data
Header Subheader
Subcommand