Delta Electronics DVPDNET-SL Manual De Usuario

DVP-PLC Application Manual 

26

editing area to 0. 

„ When M1 = On, DVPDNET-SL will send out request message. Write 0004Hex into Class 99 >> 

Instance 1 >> Attribue 2 of the target equipment (node address: 02). If the communication of 

explicit message is successful, the slave will return with a response message. 

„ When M1 = On, DVPDNET-SL will only send out request message once. If you would like it to 

send out request message again, you will have to change ReqID. 

„ When the writing is successfully done, the message responded from the target equipment will be 

stored in D6000 ~ D6003. 

7.1 Principle 

of 

Bit-Strobe 

Bit-strobe is one of the standard I/O transmission methors for DeviceNet. The length of command is fixed to 

8 bytes (i.e. 64 bits), and every bit corresponds to a slave. 

Corresponding nodes on the network 

PLC 

device 

b15 

b14 

b13 

… 

b1 

b0 

D6282 

Node 15 

Node 14 

Node 13 

… 

Node 1 

Node 0 

D6283 

Node 31 

Node 30 

Node 29 

… 

Node 17 

Node 16 

D6284 

Node 47 

Node 46 

Node 45 

… 

Node 33 

Node 32 

D6285 

  Node 63 

Node 62 

Node 61 

… 

Node 49 

Node 48 

When b0 of D6282 = 0, the node 0 equipment will be selected, and it will need to respond with a message to 

the master. When b0 and b1 of D6282 = 0, the node 0 and node 1 equipment will be selected, and they will beed 

to respond with a message to the master. 

b0

b1

b17

b15 b14

b30

b2

b18

b16

b31

D6283

Node 0

Node 1

Node 2

Node 14

D6282

 

In the bit-strobe mode, the master will not send control data to the slave node. However, when its 

corresponding bit is set to 0, the slave node will have to respond with I/O data to the master. When its 

corresponding bit is set to 1, the slave node will not have to respond with I/O data to the master.

 

8.1 

Display of Node Status in Scan List 

DVPDNET-SL does read-time monitoring to the nodes in the scan list and maps the status of every node to a 

bit. You can acquire the node status by monitoring D6032 ~ D6035. See the table below for the corresponding 

relation between PLC devices and the nodes on the network: