# Location of the handshake bits

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Slave (Controller) à Master
Device | Signal name
…
RX(m+n)8 | Initial data processing request flag
RX(m+n)9 | Initial data setting complete flag
RX(m+n)A | Error status flag
RX(m+n)B | Remote READY
…

Master à Slave (Controller)
Device | Signal name
…
RY(m+n)8 | Initial data processing complete flag
RY(m+n)9 | Initial data setting request flag
RY(m+n)A | Error reset request flag
…

The two tables are showing the part of the memory, mapped in bits, where the handshake flags are located.

m - Address assigned to the master module by the station number setting. This defines the memory area dedicated for this slave. It begins at address m of the master.

n - It depends on the number of occupied stations and the extended cyclic setting, as shown in the table:

| Case 1 | Case 2
Number of occupied stations | 1 | 4
Extended cyclic setting | Octuple | Double
n | 0x7 | 0xD