Chapter 2 Devices 2-43 Limited Special auxiliary Refresh time to relay SM5 The system automatically sets SM5 to ON and resets it to OFF. (1) SM5 is refreshed when the program is rewritten in the PLC. (2) SM5 is refreshed when the PLC is supplied with power and starts to run for the first time. SM8 The system automatically sets SM8 to ON and resets it to OFF. SM8 is automatically set to ON when there is a watchdog timer error. SM9 The system automatically sets SM9 to ON and resets it to OFF. SM9 is automatically set to ON when there is a system error. SM10 The system automatically sets SM10 to ON and resets it to OFF. SM10 is automatically set to ON when there is an I/○ bus error.
SM22, SM23, SM24 Users set the flag to ON, and the system automatically resets it to OFF. The log is cleared when the flag is ON. SM25~SM26 The system automatically sets the flag to ON and resets it to OFF. The flag is refreshed every scan cycle. SM96~SM97 Users set the flag to ON. After the data is sent, the system automatically resets the flag to OFF. SM98~SM99 The system automatically sets the flag to ON and resets it to OFF. The flag is automatically set to ON when the command is sent. SM100~SM101 The system automatically sets the flag to ON, and users reset it to OFF. The flag is set to ON when the command is received.
SM102~SM103 The system automatically sets the flag to ON, and users reset it to OFF. The flag is automatically set to ON when the command received is wrong. SM104~SM105 The system automatically sets the flag to ON, and users reset it to OFF. The flag is set to ON when there is a receive timeout. SM106~SM107 Users set the flag to ON and reset it to OFF. ON: The 8-bit mode OFF: The 16-bit mode SM108、SM109 Users set the flag to ON and reset it to OFF. SM204~SM205 Users set the flag to ON, and the system automatically resets it to OFF. ON: Clearing the non-latched/latched areas SM206 Users set SM206 to ON and reset it to OFF. ON:
Inhibiting all output SM209 Users set SM209 to ON, and the system automatically resets it to OFF. ON: The communication protocol of COM1 changes. SM210 Users set SM210 to ON and reset it to OFF. ON: The RTU mode SM211 Users set SM211 to ON, and the system automatically resets it to OFF. ON: The communication protocol of COM2 changes. SM212 Users set SM212 to ON and reset it to OFF. ON: The RTU mode SM215 Users set SM215 to ON and reset it to OFF.