Overview Of Each Connection Type - Mitsubishi Electric MELSEC iQ-R Series User Manual

Overview of each connection type

One of the following connection types, which are defined by the DeviceNet specification, can be selected for each slave node.
• Polling
• Bit strobe
• Change of state
• Cyclic
For the connection type available for the slave node, refer to the manual of each slave node.
Polling
The polling is the communication method that repeats the following communication from  to  to each slave node.
Ò
(2)
(1) Master node
(2) Slave node
 The master node transmits the data.
 The slave node transmits the data using  as a trigger.
 The master node transmits the data.
 The slave node transmits the data using  as a trigger.
 The master node transmits the data.
 The slave node transmits the data using  as a trigger.
RJ71DN91
(1)
Ó
×
Ö
Õ
Ô
(2)
(2)
1.1 Master Function (I/O Communication)
1
1 FUNCTIONS
21