7-29
7.4.3 1:N Communication (Computer Link)
Overview
For a 1:N computer link, the computer and the FP
Σ
are connected through a commercially available
RS232C-RS485 conversion adapter, and the respective PLCs are wired using an RS485 cable.
The computer and the PLC communicate via commands and responses: The computer sends a
command specifying the unit number, and the PLC with that unit number sends a response back to the
computer.
When data is transmitted from FP
Σ
via the RS485 communication of AFPG806 (COM4), start the
transmission of the data to FP
Σ
after the time mentioned blow passes at a receiver.
In case of 19200 bps: 1 ms In case of 115200 bps: 200µs
Note) Lineeye SI-35 is recommended to be used as a conversion adapter.
Setting system registers
Setting of COM1 port
No.
Name
Set value
No. 410
COM1 port unit number
1 to 99 (Set the desired unit number)
(With a C-NET adapter, a maximum of
32 units (stations) can be specified.)
No. 412
COM1 port selection of communication mode
Computer link
No. 413
Communication format for COM1 port
Data length: ……
Parity check: …..
Stop bit: …………
Terminator: ……..
Header: …………
7 bits/8 bits
None/Odd/Even
1 bit/2 bit
CR
STX not exist
No. 415
Baud rate setting for COM1 port
2400 to 115200 bps
Note1) The communication format and baud rate (communication speed) should be set to match the
connected computer.
Note2) The RS485 port of the AFPG806 is either 19200 bps or 115200 bps only.
Also the baud rate must be identically set by the system register and the dip switch in the
communication cassette.
Reference:
<7.1.4 Setting of AFPG806 Switch>
Note3) Setting the unit number setting switch to 0 makes the system register settings valid.
Note4) Connect the “
−
“ terminal and the “E” terminal with a lead wire to make the termination resistance
of the AFPG803 effective.
The termination resistance of the AFPG806 is specified by the dip switch located in the
communication cassette.
Summary of Contents for FP E Series
Page 1: ......
Page 16: ......
Page 17: ...Chapter 1 Functions and Restrictions of the Unit ...
Page 28: ...1 12 ...
Page 29: ...Chapter 2 Specifications and Functions of the Unit ...
Page 37: ...2 9 Circuit diagram C32 Y0 Y1 Y3 Y4 C28 Y0 Y1 Y3 Y4 Y2 Y5 to YF Y2 Y5 to YB ...
Page 48: ...2 20 ...
Page 49: ...Chapter 3 Expansion ...
Page 56: ...3 8 Terminal layout diagram Note The numbers in the connector are for the first expansion ...
Page 61: ...Chapter 4 I O Allocation ...
Page 66: ...4 6 ...
Page 67: ...Chapter 5 Installation and Wiring ...
Page 90: ...5 24 ...
Page 91: ...Chapter 6 High speed counter Pulse Output and PWM Output functions ...
Page 116: ...6 26 ...
Page 121: ...6 31 ...
Page 125: ...6 35 Pulse output diagram ...
Page 131: ...6 41 ...
Page 139: ...6 49 ...
Page 141: ...6 51 ...
Page 144: ...6 54 Program Continued on the next page ...
Page 145: ...6 55 ...
Page 147: ...6 57 Program ...
Page 151: ...Chapter 7 Communication Cassette ...
Page 210: ...7 60 The values of DT50 and DT51 are written in DT0 and 1 of PLC ...
Page 238: ...7 88 ...
Page 239: ...Chapter 8 Self Diagnostic and Troubleshooting ...
Page 247: ......
Page 248: ......
Page 249: ...Chapter 9 Precautions During Programming ...
Page 260: ...9 12 Example 2 Using the CT instruction between JP and LBL instructions ...
Page 268: ...9 20 ...
Page 269: ...Chapter10 Specifications ...
Page 286: ......
Page 287: ...Chapter 11 Dimensions ...
Page 290: ...11 4 11 1 3 Expansion Unit FPG XY64D2T FPG XY64D2P FPG EM1 ...
Page 293: ...Chapter 12 Appendix ...
Page 297: ...12 5 ...
Page 437: ...12 145 12 7 ASCII Codes ...
Page 439: ......
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