Chapter 2 Devices 2_ Note 1: for SR*, refer to SM/SR table for more details 2.2.15 Special Data Registers Refresh Conditions 2-77 Latched Attribute Default OFF STOP RUN SR Function ON RUN STOP module *SR1568 Model code of the 8th right-side module connected to the CPU module 0 - - N R 0 Special data Time to refresh register SR0–SR2 Refresh the register when there is a program execution error. SR4–SR6 Refresh the register when there is a grammar check error SR8–SR9 Refresh the register when there is a watchdog timer error. SR23 Refresh the register when there is a watchdog timer error.
SR28 Refresh the register when the output is used repeatedly by more than one high-speed output instruction. SR32 Refresh the register once when there is an error. -1: no error occurred. SR36 The register is refreshed by you. You set the flag SM36 to ON and the system saves the data to the memory card. After saving is complete, the system automatically resets it to OFF SR40–SR161 Refresh the register when there is an error. SR162–SR163 After the manufactured PLC leaves the factory, every minute the PLC is supplied with power is counted and the register is refreshed every minute. SR180 Refresh the register when the PLC is powered on and powered off. SR190–SR197 Register is refreshed by you.
SR198–SR199 After a cycle scan when the PLC is powered on. SR201–SR213 The register is refreshed according to the settings in HWCONFIG when the PLC is powered on. You can edit the settings afterwards. SR217–SR218 The register is refreshed according to the settings in HWCONFIG when powered on. You can edit the settings afterwards. SR220–SR226 Refresh the register every scan cycle. SR227–SR308 Refresh the register when the program is downloaded to the PLC. SR309–SR390 Refresh the register when the status of the PLC changes. SR391–SR397 Refresh the register every scan cycle. SR407 Refresh the register every second. SR408–SR416 Refresh the register whenever the instruction END is executed.
SR421–SR424 Register is refreshed by you. SR440–SR443 Refresh the register when the PLC is powered on. SR444–SR451 Refresh the register when the PLC is powered on. SR453 Refresh the register when there is an error. SR460 Refresh the register whenever the high-speed output instruction is executed and the program is scanned. If the instruction is not executed, you can edit the settings. SR462–SR466 Register is refreshed by you. SR467 Register is refreshed by the system. SR468–SR469 When the PLC is supplied with power, the register is refreshed according to the position planning