
4-6
4.3.2 The Roles Played by the Various Areas
Initialization information setting area <Addresses 200H to 22FH>
-
These are used in the initialization processing of the ET-LAN unit.
-
These specify basic information such as the addresses and node numbers of source stations, and the
re-send setting time for the TCP.
-
These are also used to specify the area settings for the communication buffer used for transparent
communication.
Routing information setting area <Addresses 230H to 24FH>
-
These are used in the initialization processing of the ET-LAN unit.
-
These are specified when communication is being carried out from the ET-LAN unit with a node on an
Ethernet, through a router.
-
These are used to specify router IP addresses and sub-network masks.
-
These do not need to be set if communication is being carried out only on the network to which the
source station is connected.
Connection information setting area <Addresses 250H to 2CFH>
-
These are used for open processing of the ET-LAN unit.
-
These specify TCP and UDP settings, the method used for opening the ET-LAN unit, and the IP
addresses and port numbers of the node at the other end.
-
These can be specified separately for each connection, and are divided into eight blocks.
Initialization information notified area <Addresses 2D0H to 2DFH>
-
When the initialization processing for the ET-LAN unit has been completed successfully, the specified
conditions are stored at these addresses.
-
The contents stored here include source node IP addresses, MEWTOCOL station numbers, and other
information.
-
If the initialization processing was not completed successfully, the error code is stored here.
Connection information notified area <Addresses 2E0H to 35FH>
-
When the open processing for the ET-LAN unit has been completed successfully, the specified
conditions are stored at these addresses.
-
The contents stored here include IP addresses and port numbers for the destination nodes, and other
information.
-
If the open processing was not completed successfully, the error code is stored here.
Handshake area <Addresses 360H to 37FH>
-
This is the area in which the handshake takes place between the CPU unit and the ET-LAN unit.
-
The requests and completions for various types of processing such as initialization, opening, and
communication are carried out here, as well as confirmation that processing has been completed.
-
If the I/O is being used for the handshake, these addresses do not need to be used.
Error log area <Addresses 380H to 3FFH>
-
Error-related information such as the contents of communication errors and unsuccessfully completed
processing, as well as the contents of unit errors, are stored here as error codes.
-
Up to 14 codes can be stored here at one time for each unit.
-
The contents of these addresses can be confirmed using the shared memory readout menu in the
programming tools.
Содержание FP2 ET-LAN
Страница 11: ...Chapter 1 Unit Functions and Restrictions ...
Страница 14: ...1 4 1 1 4 Connecting to a Network AFP2790 100BASE TX 10BASE T 10BASE5 AUI AFP27901 ...
Страница 24: ...1 14 ...
Страница 25: ...Chapter 2 Names and Functions of Parts ...
Страница 29: ...Chapter 3 Connection for LAN Cable ...
Страница 37: ...Chapter 4 Confirming the Design Contents ...
Страница 49: ...Chapter 5 Initialization Processing and Termination Processing ...
Страница 51: ...5 3 Operation of the ET LAN unit The relationship between initialization processing and open processing ...
Страница 68: ...5 20 ...
Страница 69: ...Chapter 6 Open Processing and Close Processing ...
Страница 71: ...6 3 Operation of the ET LAN unit The relationship between open processing and close processing ...
Страница 84: ...6 16 ...
Страница 85: ...Chapter 7 Computer Link Function ...
Страница 94: ...7 10 Program example ...
Страница 97: ...7 13 Example of communication data Same hierarchy communication ...
Страница 100: ...7 16 Example of communication data Other hierarchy communication ...
Страница 101: ...7 17 Other hierarchy communication for MEWTOCOL COM ...
Страница 102: ...7 18 ...
Страница 103: ...Chapter 8 Data Transfer Function ...
Страница 111: ...8 9 Program example ...
Страница 114: ...8 12 Example of communication data Same hierarchy communication ...
Страница 117: ...8 15 Example of communication data Other hierarchy communication ...
Страница 119: ...8 17 Other hierarchy communication for MEWTOCOL DAT ...
Страница 120: ...8 18 ...
Страница 121: ...Chapter 9 Transparent Communication Function ...
Страница 137: ...9 17 Program example ...
Страница 140: ...9 20 Reception processing After the following program has been run the received data is read from the receive buffer ...
Страница 141: ...9 21 9 5 3 Sample Program Reception to Transmission Program example for transmitting received data as it is ...
Страница 143: ...Chapter 10 Auto Connection ...
Страница 155: ...10 13 Case 1 Ladder program example ...
Страница 169: ...Chapter 11 E mail Function ...
Страница 200: ...11 32 ...
Страница 201: ...Chapter 12 Error Log Function ...
Страница 203: ...12 3 Latest log block area Log block reading processing area ...
Страница 219: ...Chapter 13 Troubleshooting ...
Страница 224: ...13 6 13 2 4 Troubleshooting Flowchart ...
Страница 225: ...13 7 ...
Страница 229: ...Chapter 14 MEWTOCOL Communication Procedure ...
Страница 241: ...14 13 WD Write data area This writes the contents of the data area To write the contents of DT LD and FL ...
Страница 242: ...14 14 To write to an index register ...
Страница 262: ...14 34 ...
Страница 263: ...Chapter 15 Specifications ...
Страница 292: ...15 30 15 6 ASCII Codes ...
Страница 293: ...15 31 15 7 Dimensions AFP2790 FP2 ET1 AFP27901 FP2 ET2 ...
Страница 294: ......
Страница 295: ...Chapter 16 Sample Program ...
Страница 298: ...16 4 ...
Страница 299: ...16 5 ...
Страница 300: ...16 6 ...
Страница 301: ...16 7 ...
Страница 304: ......
Страница 305: ......