Cutler-Hammer D320 PLC, User Manual

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D320 PLC User's Manual
F12.0 to F12.15 (F12 word register) Realtime Clock Functions
Address Function Details Note
F12.0 RTC check On when the RTC is enabled. Output
F12.3 Flash On when the Flash ROM is enabled. Output
F12.10 RTC set error On when there is an error setting the RTC. Output
F12.13 RTC set 1 On when changing the year, month, or date. Off
when the data set is normal. I/O
F12.14 RTC set 2 On when changing time, min., or sec. Off when the
data set is normal. I/O
System Registers SR0 to SR511
Address Function Detail
SR000 CPU address Indicates the CPU ID number in the lower 8 bits. 0 to 223 are the
valid user-defined values, 255 is the default value.
SR001 CPU status Indicates current CPU information state. (stop/remote control
mode/run mode/error)
Error = 1
Run control (same as F15)
CPU switch remote control (REM) = 1
CPU switch RUN = 1
CPU switch STOP = 0
SR002 User watchdog Indicates the user program watchdog time. (unit: msec)
SR003 Scan time Indicates the scan time when executing a program. (unit: msec)
SR004 Max. scan time Indicates maximum value of scan time when executing a program.
Initialized as zero when the program mode changes from the stop
state to the run state.
SR005 to 7 Link unit number Unit address as set by the link module.
SR008 PID table PID register block start address.
SR009 to 16 Remote info. Remote I/O configuration information.
MSB 03 02 01 00