7-4
PC(PLC) link
•
In a PC(PLC) link, data is shared with all PLCs connected via MEWNET using dedicated internal relays
called link relays (L) and data registers called link registers (LD).
•
If the link relay contact for one PLC goes on, the same link relay also goes on in each of the other
PLCs connected to the network. Likewise, if the contents of a link register are rewritten in one PLC, the
change is made in the same link register of each of the other PLCs connected to the network.
•
The status of the link relays and link registers in any one PLC is fed back to all of the other PLCs
connected to the network, so control of data that needs to be consistent throughout the network, such
as target production values and type codes, can easily be implemented to coordinate the data, and the
data of all units are updated at the same time.
- Link relay
In the figure below, when link relay L0 of the master station (no.1) turns on, this signal is converted by
the programs of the other stations, and Y0 of the other stations is activated.
- Link register
In the figure below, if a constant of 100 is written to LD0 of the master station (no.1), the contents of LD0
in the other stations are also changed to a constant of 100.
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 ...
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