Input/output extension module device of devicenet

摘要

The present invention relates to an input / output expansion module device of a devicenet, and further comprising a master module for generating and outputting a communication permission signal and an identification control signal for a slave module, and outputting each from a master module with a 2-bit identification address for distinguishing a slave module. A first slave module which receives the communication permission signal and the identification control signal of the slave module and is activated by the received communication permission signal and controls the input / output tag by the slave module identification control signal and generates the next slave module identification control signal; Receives the communication permission signal output from the master module with a 2-bit identification address to distinguish the slave module and activates the I / O tag by the slave module identification control signal output from the first slave module and controls the next slave module identification. A second generating and outputting signal The slave module and the third slave module and the fourth slave module are configured to have the same function as the second slave module, thereby increasing input / output tags of each module and reducing manufacturing costs.