13-813.3 Reset Function13.3.1 What is the Reset Function?The reset function is used to restart only the ET-LAN unit without cutting off the power supply for thesystem.Using the reset function enables the ET-LAN unit to be the operable state when an unrecoverable errorhas occurred in the ET-LAN unit.Also, using the reset function periodically when the ET-LAN unit is not communicating may help toprevent an accidental communication error.The no communication notification function is available which is useful to detect the time to execute thereset function.13.3.2 No Communication Notification FunctionThe no communication notification function is a function to notify that communication is not performedlonger than a specified time for the connection opened by the open processing of the ET-LAN unit.Using the no communication notification function enables to detect the state that the ET-LAN unit is notcommunicating.Use this function when executing the reset function.Procedure1. Write a value in the following address of the initial information setting area (Shared memory Bank 0) toexecute the initial processing.Initial information setting area (Bank 0)Address Name Default Setting value/Explanation208H No communicationconnection time type 0000HSet the base time for the no communication connection detectiontimer value.0000H : × 2 minutesOther than 0000H : x 6 seconds209HNo communicationconnection detectiontimer value0000HSetting time = [Setting value (1 - FFFFH)] × [Base time]- Set the time to detect a no-communication state after connectionestablishment.- The setting value of the above 208H is used as the base time.- When the setting value is larger than 0064H,in case of x 2 minutes : 200 minutesin case of x 6 seconds : 10 minutes2. When communication is not performed for the period of the specified time-out value, the flags of thebits corresponding to each connection in the following handshake area (Shared memory Bank 0) turn on.Handshake areaExpanded complete request area 2 (Bank 0)Address BIT Description of signal366H bit8 No communication time-out signal (Connection 1)bit9 No communication time-out signal (Connection 2)bitA No communication time-out signal (Connection 3)bitB No communication time-out signal (Connection 4)bitC No communication time-out signal (Connection 5)bitD No communication time-out signal (Connection 6)bitE No communication time-out signal (Connection 7)bitF No communication time-out signal (Connection 8)
