Chapter 10: Communication Control
Chapter 10: Communication Control
A participating node list flag, an operation status flag, error status flag, local node management table, participating nodes management table, and network management table are set up in the communication control area of the
(Complete setting procedure for the
Communication | Address(8) | Control details | Reference |
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control area | * | section |
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Participating | +000 | Participating status of each node in the |
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to | [1] |
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nodes list flag | network |
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+037 |
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Operation status | +040 |
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to | Operation information for each node | [2] |
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flag |
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+077 |
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| +100 |
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Error status flag | to | Error information of each node | [3] |
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| +137 |
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Local node | +140 |
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management | to | Information concerning own node | [4] |
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table |
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+233 |
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Participating | +234 |
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node |
| Node number information written to the |
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to | [5] |
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management | base address +300 |
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table | +253 |
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Network | +254 |
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management | to | Information common to the network | [6] |
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table |
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+267 |
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Node number to |
| Node number to read information to the |
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+300 | participating node management table |
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read information |
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| (address +234 to 253) |
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| Write 01(H) is written to this address, the |
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Transmit the data | +301 | data in the transmission area [information |
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and data sections] of the transmission |
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*Addresses +000 to 301(8) are offset addresses calculated from the top address of the communica- tion control area. Enter the top address for the communication control area as a parameter at addresses 30 to 32(8)).
Parameter
address(8)
Details
30 | Top address (word address) of the communication control area in the PC. |
31- Address 30 is for the lower digit. Address 31 is for the upper digit.
32 File number of the communication control area in a PC.
(Parameter => See Chapter 12)