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CHAPTER 7 COMMUNICATION OF THE ETHERNET ADAPTER MODULE
7
7.2 Communication Using the On-demand Function
7.2.5 Buffer memories used for the on-demand function
(4) Setting data (buffer memory address: 5635 to 6655 (1603
H
to 19FF
H
))
On-demand data can be sent using the connection for users and auto-open UDP port in the Ethernet adapter
module.
(a) On-demand data sending using the connection for users (TCP only)
Send on-demand data using the connection of the connection setting in the configuration tool.
On-demand data is sent using TCP only when the protocol setting for the connection for users is TCP and TCP connection
is being established with an external device.
If the protocol setting is UDP or TCP connection is not established with an external device, a send error occurs.
(b) On-demand data sending using the auto-open UDP port
Send on-demand data using the auto-open UDP port in the Ethernet adapter module.
Using UDP enables data to be sent to an arbitrary external device set for the setting data.
Buffer memory address
Name
Default
value
Read/Write Reference
(Decimal) (Hexadecimal)
+0
+0
H
Setting data
Control data
Connection No.
(setting value: 1 to 32)
0H Write
Page 94,
Section 7.2.5 (5)
+1
+1
H
Frame setting format
+2
+2
H
Serial No.
+3 to +6
+3
H
to +6
H
System area
+7
+7
H
Send data format
+8
+8
H
Send data length
+9 to +968
+9
H
to +3C8
H
Send data
+969 to +1020
+3C9
H
to +3FC
H
System area
Buffer memory address
Name
Default
value
Read/Write Reference
(Decimal) (Hexadecimal)
+0
+0
H
Setting data
Control data
Connection No.
(setting value: fixed to 0)
0H Write
Page 94,
Section 7.2.5 (5)
+1
+1
H
Frame setting format
+2
+2
H
Serial No.
+3
+3
H
Communication data
code specification
+4
+4
H
Destination IP
address
Lower
+5
+5
H
Upper
+6
+6
H
Destination port No.
+7
+7
H
Send data format
+8
+8
H
Send data length
+9 to +968
+9
H
to +3C8
H
Send data
+969 to +1020
+3C9
H
to +3FC
H
System area