Delta AH500 - Assignment of Mapping Area (in Slave Mode); Data Flow Direction of Master and Slave

Chapter 10 DeviceNet Communication Module AH10DNET
10-15
10.4.3 Assignment of Mapping Area (in Slave Mode)
While AH10DNET-5A works in slave mode and the starting addresses for output and input are
specified as D1000 and D500 respectively, the mapping area will be assigned as the following table
is.
Output area: Master->Slave
Input area: Slave->Master
Initial
register
Purpose
Max.
length
Initial
register
Purpose
Max.
length
D1000
The register is used
for receiving the
control data that the
master sends out.
490
words
D500
The values in the
register will be
feedback to the
master.
490
words
The data length of AH10DNET-5A can be set freely when it works as a slave.
10.4.4 Data Flow Direction of Master and Slave
There are two AH10DNET-5As on the network working as the master and slave respectively.
One AH10DNET-5A works as the master and the starting address of its mapping area is shown as
the following window. The starting addresses for output and input are D500 and D1000 respectively.
Note: D500 and D1000 in the above window are the registers in an AH500 series CPU module on
the left of AH10DNET-5A functioning as a master.
The other AH10DNET-5A serves as a slave and the starting address of its mapping area is shown
as below window. The data that master sends to the slave will be updated in the registers starting
from D1000 and meanwhile, the values in the registers starting from D500 will be sent to the master
by the slave.