Denso RC5 Especificaciones descargar pdf (Pagina 75)

9.1.3 System Construction Procedure

(1) First, connect the master and slave devices with each other by using DeviceNet

cables, referring to the system configuration sample. It is essential to connect

terminating resistors. The power supply for communications should not be

turned on at this stage.

(More details about wiring and system configuration are described in Subsection

9.2.2 and in Section 9.4, respectively.)

(2) Set the communications speed for master and slave devices. DeviceNet allows

selection of 125, 250, or 500 Kbps. The factory default is 500 Kbps.

(Wrong speed setting will make communications impossible.)

(3) Set the addresses of the master and slave devices. In DeviceNet, as shown

below, a total of 64 master and slave devices can be connected, and each

device must be assigned any of ID addresses ranging from 0 to 63.

(Take care not to double-assign a same address on the same network.)

(4) After setting up the communications speeds and addresses, connect the

communication power supply and then turn on the power of each device. This

completes the hardware settings.

(5) Register the information about the connected slave devices to the master

device. This registration information is called “scanlist.” According to the scanlist,

the master device may control those slave devices.

For the procedure on how to create a scanlist, refer to Subsection 9.4.2.

(6) The creation of the scanlist will automatically determine I/O addresses for the

connected slave devices. Accordingly, the I/O communication between the

master and slave devices becomes possible. The input and output areas of the

master device from/to slave devices are IO [1024] to [2047] and IO [2048] to

[3071], respectively.

(For details about I/O addresses, refer to Section 9.3.)

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Denso RC5 Especificaciones Pagina 75