NAiS FP Series User Manual page 272

FPΣ
Relay No. Name
R9020 RUN mode flag
R9021 Not used
R9022 Not used
R9023 Not used
R9024 Not used
R9025 Not used
R9026 Message flag
R9027 Not used
R9028 Not used
R9029 Forcing flag
R902A Interrupt enable flag
R902B Interrupt error flag
R902C Not used
R902D Not used
Not used
R902E
R902F Not used
Description
Turns off while the mode selector is set to PROG.
Turns on while the mode selector is set to RUN.
Turns on while the F149 (MSG) instruction is executed.
Turns on during forced on/off operation for input/output relay and
timer/counter contacts.
Turns on while the external interrupt trigger is enabled by the ICTL
instruction.
Turns on when an interrupt error occurs.
13.5 Table of Special Internal Relays
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