Cutler-Hammer D320 PLC, User Manual

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Chapter 5: CPU Operation and Memory
59
Address Function Detail
SR017 System error information Gives result of self-check by CPU. Indicates error content when
F0.0 turns On.
Watchdog time error
Undefined instruction
during run state
Peripheral device fault
Misc. faults
Logic circuit fault
Microcomputer fault
SR018 Location of undefined
instruction Indicates the location of the instruction (the step number) that
caused an undefined instruction error during program execution.
SR019 Reserved System use.
SR020 Multiplication Stores high order 8 bit values upon executing 16 bit multiplication
instructions.
SR022 Remainder Stores the remainder after a division instruction has been
executed (high order 16 bits).
SR024 to 27 Reserved System use.
SR028 to 29 Error I/O module Sets bit position at error in I/O module.
SR030 to
047 Reserved System use.
SR048 to
111 Slot information Stores slot information for I/O modules.
SR112 to
SR239 Remote Contains remote I/O configuration data.
SR289 to
SR297 RTC Contains real time clock information.
SR298 to
SR373 User defined comm.
protocol User defined communication protocol information for COM2.
SR374 to
SR379 Link error Link error information data.
SR380 to
SR511 Reserved System use.
MSB 7 6 5 4 3 2 1 0