(2)Program condition (for FROM/TO instruction)
This program writes parameters to the buffer memory when PLC CPU status changes from STOP to RUN and automatically starts the data link with FROM/TO instruction.
(a) I/O signal of
Control & Communication Link System Master/ Local Module Type AJ61BT11/A1SJ61BT11 User's Manual
(b) Devices used by user
Device | Application | |
M100, M101 | Flag for parameter setting | |
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M102, M103 | Flag for data link startup | |
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D0 | Number of connected modules | |
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D1 | Number of retry | |
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D2 | Automatic reconnection station count | |
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D3 | Operation specification in the case of CPU failure | |
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D4 | Reserved station specification (Station No. 1 to | |
Station No. 16) | ||
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D5 | Error invalid station specification (Station No. 1 to | |
Station No. 16) | ||
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D6 | Station data (first module) | |
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D400 | Error code in the case of data link startup failure | |
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(c)Buffer memory settings used in the present example
Buffer memory |
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address | Item | Set value | ||
Decimal (Hex) |
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1 | (1H) | Number of connected modules | 1 (1 module) | |
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2 | (2H) | Number of retry | 3 (3times) | |
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3 | (3H) | Automatic reconnection station | 1 (1 station) | |
count | ||||
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6 | (6H) | Operation specification in the | 0 (stop) | |
case of CPU failure | ||||
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16 | (10H) | Reserved station specification | 0 (No | |
(Station No. 1 to Station No. 16) | specification) | |||
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20 | (14H) | Error invalid station specification | 0 (No | |
(Station No. 1 to Station No. 16) | specification) | |||
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32 | (20H) | Station data (first module)*1 | 2101H | |
*1 Details for the station data are shown below.
For 1) and 2), set the same station No. and number of station occupied settings as those of the GOT.
For 3), the setting is fixed.
b15 to | b12 b11 to | b8 b7 | to | b0 | ||
3) |
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1)Station No. (Set the same station No. as that of the GOT.) 01H to 40H: Station No. 1 to Station No. 64
2)Number of stations occupied (Set the same setting of the number of station occupied as that of the GOT.)
1H: Exclusive station 1
2H: Exclusive station 2
3H: Exclusive station 3
4H: Exclusive station 4
3)Station type (2H: Set it to intelligent device station.)
0H: Remote I/O station
1H: Remote device station
2H: Intelligent device station (Incl. local station)
13 - 36 | 13. |
| 13.4 PLC Side Setting |