NAiS FP2 - Operation of PC(PLC) Link

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5-3

5.1.2

Operation of PC(PLC) link

• Turning on a link relay contact in one PLC turns on the same link relay in all other PLCs on the same

network.

• Likewise, if the contents of a link register in one PLC are changed, the values of the same link register

are changed in all PLCs on the same network.

Main Page

Table of Contents3
Before You Start7
Functions and Restrictions of the Unit9
Features and Functions of the Unit10
Functions10
Unit Types12
Multi Communication Unit12
Communication Blocks12
Restrictions on Units Combination13
Restrictions on Installation Position and Number of Units13
Specifications and Functions15
FP2 Multi Communication Unit16
Parts and Functions16
FP2 Communication Blocks18
Types of Communication Blocks18
Names and Major Applications of Port20
Table of Specifications21
General Specifications21
Communication Specifications22
Confirming the I/O Contacts and Slot Number25
The Role of Input/Output Contacts25
Confirming the I/O Number Allocation26
Confirming Slot Number27
Confirming Root no28
Installation and Wiring of Communication Blocks29
Installation of Communication Blocks30
Wiring of Communication Blocks31
Fp2-Cb232(Afp2803), Fp2-Cb422(Afp2804)31
Fp2-Cb485 (Afp2805)32
Selection of Cables34
Communication Function35
Communication Mode37
PC(PLC) Link Mode37
General-Purpose Serial Communciation Mode38
Computer Link Mode38
Remote Control Using Modem39
Settings40
Operation Mode Setting40
Communication Condition Setting40
Unit No. Setting41
How to Set42
Unit No. Setting Switch42
Mode Speed Setting Switch42
Memory Switch43
Flow Chart44
Timing for Transmission of Communication Setting Data45
Communication Function: PC(PLC) Link47
Overview of Funcation48
What Is PC(PLC) Link48
Operation of PC(PLC) Link49
Setting the Operation Mode and Baud Rate50
Setting Using Mode Speed Setting Switch50
Setting of Unti Numbers50
Link Relay and Link Register Allocations52
Monitoring58
Connection Example of PLC Link59
When Using Three Plcs59
Sample Program61
PC(PLC) Link Response Time62
Troubleshooting (PC(PLC) Link)64
Communication Function: General-Purpose Serial Communication65
Overview of Funcation66
What Is General-Purpose Serial Communication66
Setting the Operation Mode and Baud Rate68
Setting Using Mode Speed Setting Switch68
Setting Using Memory Switch69
I/O Allocation70
Communication with External Devices72
Programming Example of General-Purpose Serial Communication72
Data Transmission F159 (MTRN) Instruction73
Data Reception F161 (MRCV) Instruction76
Data to be Sent/Received with MCU78
Flag Operation in Serial Communication79
Connection with 1:1 Communication (General-Purpose Serial Communication)82
Connection Example with External Device <1:1 Communication with Micro-Imagechecker83
Connection Example with External Device <1:1 Communication with FP Series PLC87
1:N Communication (General-Purpose Serial Communication)92
Troubleshooting (General-Purpose Serial Communication)93
Communication Function: Computer Link95
Overview of Funcation96
What Is Computer Link96
Unit Operation97
Setting the Operation Mode and Baud Rate99
Setting Using Mode Speed Setting Switch99
Setting Using Memory Switch100
Setting of Unit Numbers (C-NET 1:N Communication)101
Connection with Serial Devices103
Communication Conditions and Restrictions Relating to Functions104
Table of MEWTOCOL Command106
MEWTOCOL-COM Commands106
Table of MEWTOCOL-COM Error Code106
Troubleshooting (Computer Link)107
Applications109
Changing Application of COM. Port110
Setting Communication Conditions and Monitoring111
Example of Communication Condition Setting Using F159 (MTRN) Instruction113
Example of Monitoring Communication Condition Using F161 (MRCV) Instruction114
MCU Status Monitor115
Specifications119
Table of Specifications120
General Specifications120
Communication Specifications121
Setting Communication Conditions and Monitoring123
I/O Allocation (General-Purpose Serial Communication)125
Appendix127
Detailed Time Chart of Data Transmission and Reception127
Time Chart of Multiplex Reception128
Dimensions and Sample Programs139
Dimensions140
FP2 Multi Communication Unit140
Communication Blocks141

NAiS FP2 - Operation of PC(PLC) Link

Table of Contents

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