iDect FC6A series User Manual page 261

Device
Address
M8304 J1939 Communication Bus Off Occurrence Output
M8305 to
— Reserved —
M8310
M8311 ESC+Key Input (Up)
M8312 ESC+Key Input (Down)
M8313 ESC+Key Input (Left)
M8314 ESC+Key Input (Right)
M8315 to
— Reserved —
M8317
Supplementary Descriptions of the Special Internal Relays
■ M8000: Start Control
M8000 controls the run/stop status of the FC6A Series MicroSmart. The CPU is set to run when M8000 is turned on, and the CPU
is set to off when M8000 is turned off. See "Start/Stop Operation" on page 4-15. However, the function switch, stop input, and
reset input have precedence over start control. M8000 maintains its status when the CPU is powered down. When data to be
maintained during a power failure disappears after the CPU has been off for a period longer than the battery backup duration,
the CPU restarts operation as selected in Configuration > Run/Stop Control > Run/Stop Selection at Keep Data Error. For details,
see "Run/Stop Selection at Keep Data Error" on page 5-7.
■ M8001: 1-s Clock Reset
While M8001 is on, M8121 (1-s clock) is always off.
■ M8002: All Outputs OFF
While M8002 is on, all outputs are off. The self-holding circuit created in the ladder program is also off.
■ M8003: Carry/Borrow
When a carry (Cy) or borrow (Bw) results from executing an addition or subtraction instruction, M8003 is turned on. For details,
see Chapter 3 "Carry and Borrow" in the "FC6A Series MicroSmart LAD Programming Manual".
■ M8004: User Program Execution Error
When an error occurs while executing a user program, M8004 is turned on. For details on user program execution errors, see
"User Program Execution Error" on page 13-6.
■ M8005: Communication Error
When an error occurs during data link communication, M8005 is turned on. The state is retained even when the error is cleared.
■ M8006: Communication Prohibited Flag (When Data Link Master)
During data link communication, communication is stopped while M8006 is on.
■ M8007: Initialization Flag (When Data Link Master)/Stop Communication Flag (When Data Link Slave)
When data link master: When this flag is turned on in the run status, the data link is initialized just once to check the connection
When data link slave : This flag is turned on when communication from the master is interrupted for 10 s or longer. This flag is
■ M8010: Status LED Operation
While M8010 is on, the status LED [STAT] is turned on. While off, the status LED [STAT] is turned off.
■ M8013: Calendar/Clock Data Write/Adjust Error Flag
When the clock writing or clock adjustment processing could not be executed normally, M8013 is turned on. It is turned off
when the processing completes normally.
■ M8014: Calendar/Clock Data Read Error Flag
When an error occurs while calendar/clock data is read from the internal clock to the special data registers (D8008 to D8021),
M8014 is turned on. It is turned off when reading completes normally.
■ M8016: Calendar Data Write Flag
When M8016 is turned on after writing data to the calendar data (write-only) special data registers (D8015 to D8018), the
calendar data (year, month, day, day of the week) is written to the internal clock.
Description
status. Use this when the slave configured in the data link is powered at a timing slower than the
master.
turned off when communication can be normally received.
FC6A S M S
ERIES ICRO MART
ESC+Key Input ( )
ESC+Key Input ( )
ESC+Key Input ( )
ESC+Key Input ( )
A - -O T U ' M
LL IN NE YPE SER S ANUAL
When Power
Stopped OFF
Cleared Cleared
— —
Cleared Cleared
Cleared Cleared
Cleared Cleared
Cleared Cleared
— —
FC9Y-B1722
6: D
EVICES
R/W
R
—
R
R
R
R
—
6-7