Toshiba 3000 PROFIBUS - Operation and Function; Cyclic Transmission

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Chapter 4 Operation and
Function
4.1 Cyclic Transmission
The PF311 master cyclically reads input information from the slaves and cyclically writes
output information to the slaves.
The I/O area of the PF311 to the slaves are shown in the following table. Communication
with slaves is performed by reading or writing to the specific address from the controller.
The I/O area of the slave module (PF312) to the master is shown in the following table.
Communication with slaves is possible by reading or writing to the specific address from
the controller.
Table 4-1 PF311 I/O area
Address Name Function
100h-1FFh Write data (256 words) Output area to slave
200h-2FFh Read data (256 words) Input area from slave
Table 4-2 PF312 I/O area
Address Name Function
100h-17Ah Write data(122 words) Output area to master
200h-27Ah Read data(122 words) Input area from master