Chapter 10 DeviceNet Communication Module AH10DNET 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. 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. 10-15 Output area: Master->Slave Input area: Slave->Master Initial Max. Initial Max. Purpose Purpose register length register 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