COMMUNICATION METHOD USING EVENT DRIVEN METHOD BETWEEN SIGNAL DEVICE AND CONTROL DEVICE IN FULL ELECTRONIC SWITCHING SYSTEM

摘要

PURPOSE: A communication method using an event driven method between a signal device and a control device in the full electronic switching system is provided to reduce the loads of a signal device block and to improve efficiency by adopting an event driven method for a communication method between a signal device and a control device. CONSTITUTION: A control device judges whether a value read a run flag domain as every regular period is "0 x 55"(S100). If the control device reads the data pair domain of a common memory and the data pair is not "0 x 00", the control device reads memories as much as an associated quantity(S200). The control device judges whether there is a data or function information mode to transmit to a signal device(S300). If there is the data or function information mode to transmit, the control device writes the data and message to be transmitted(S400). After writing the channel and function mode or the channel and transmitting data from the 04H address of the common memory in sequence, the control device writes the number of each of the pairs in the data pair domain(S500).