Delta Electronics DVPDNET-SL manual I/O Scan List, Can

DeviceNet Network Scanner DVPDNET-SL

1.3I/O Scan List

Item	Explanation	Software screen
	Before DVPDNET-SL starts its operation, you
	have to configure its scan list through the
	configuration software. The scan list is a list
	consisting of the information of slave devices with
	data, e.g. slave address, I/O type, I/O data length
Scan	and so on, to be exchanged with DVPDNET-SL.
Table	DVPDNET-SL is responsible for managing the
	slave devices in the scan list, establishing
	connections and exchanging I/O data with them.
	DVPDNET-SL will not establish connections and
	exchange I/O data with slave devices which are
	not configured in the network.
	DVPDNET-SL provides an Input Table (380
	bytes) and an Output Table (380 bytes) for the
	data exchange with slaves. When a slave device is
	configured into the scan list, the software will
	automatically allocate a I/O data exchange are of
	corresponding length to the slave from the
	mapping table. The I/O table is the data exchange
I/O Table	interface between the PLC MPU and the slave
	device. It corresponds the I/O data in the D
	register of the MPU with the I/O data in the slave.
	After you configure the network, download the
	configured data to DVPDNET-SL, and it will start
	the I/O data exchange with the corresponding
	slave device according to the configured data
	received. Data in Output Table will be sent to the
	salve, and data returned from the slave will be
	filled into Input Table.

1.4Specifications

DeviceNet connection

Transmission method

Electrical isolation

Interface

Transmission cable

Communication

Message type

Baud rates

CAN

500 VDC

Removable connector (5.08mm)

2-wire twisted shielded cable with 2-wire bus power cable and drain

I/O polled, bit-strobe, change of state, cyclic 125 kbps; 250 kbps; 500 kbps

4 DVP-PLC Application Manual