FP
Σ
7.1 Communication Functions of FP
Σ
7 - 3
7.1
Communication Functions of FP
Σ
This section explains about the communication functions of the optional communication
cassette.
7.1.1
Functions of Communication Cassette
There are three types of communication functions made possible by the FP
Σ
communication cassette, as described below.
Computer link
The computer link is used to carry out communication with a computer connected to the
PLC that has a transmission right. Instructions (command messages) are output to the
PLC, and the PLC responds (sends response messages) based on the received
instructions.
A MEWNET exclusive protocol called “MEWTOCOL-COM” is used to exchange data
between the computer and PLC. Two communication methods are available, 1:1 and
1:N. A network using the 1:N connection is called a C-NET.
The PLC sends back responses automatically in reply to commands from the computer,
so no program is necessary on the PLC side in order to carry out communication.
Computer
Command message
Response message
FP
Σ
Figure 127: FP
Σ
Computer link function
Applicable communication cassette
For 1:1 communication
1-channel RS232C type (Part No. FPG-COM1)
. . . .
2-channel RS232C type (Part No. FPG-COM2)
For 1:N communication
1-channel RS485 type (Part No. FPG-COM3)
. . .
Содержание FP Series
Страница 15: ...FP Functions and Restrictions of the Unit 1 2...
Страница 25: ...FP Specifications and Functions of Control Unit 2 2...
Страница 37: ...FP Expansion 3 2...
Страница 44: ...Chapter 4 I O Allocation 4 1 I O Allocation 4 3...
Страница 45: ...FP I O Allocation 4 2...
Страница 51: ...FP Installation and Wiring 5 2...
Страница 77: ...FP High speed Counter and Pulse Output Functions 6 2...
Страница 133: ...FP High speed Counter and Pulse Output Functions 6 58...
Страница 135: ...FP Communication Cassette 7 2...
Страница 147: ...FP Communication Function 1 Computer Link 8 2...
Страница 169: ...FP Communication Function 2 General purpose Serial Communication 9 2...
Страница 205: ...FP Communication Function 2 General purpose Serial Communication 9 38...
Страница 207: ...FP Communication Function 3 PLC Link Function 10 2...
Страница 232: ...Chapter 11 Other Functions 11 1 Analog Potentiometer 11 3 11 2 Clock Calendar Function 11 4...
Страница 233: ...FP Other Functions 11 2...
Страница 238: ...Chapter 12 Self Diagnostic and Troubleshooting 12 1 Self Diagnostic Function 12 3 12 2 Troubleshooting 12 5...
Страница 239: ...FP Self Diagnostic and Troubleshooting 12 2...
Страница 249: ...FP Self Diagnostic and Troubleshooting 12 12...
Страница 251: ...FP Specifications 13 2...
Страница 323: ...Index FP I 4...
Страница 325: ...FP Record of changes R 2...