Pixsys TD320, Руководство пользователя

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28
SM N°
ModBus
Address
Description / Signification
SM0 1000
Bit state
Bit 0
Bit RUN/STOP (1 = RUN). At startup
this bit is always forced ON (PLC in
RUN). In STOP the output relays of
the PLC are disabled.
R/W
Bit 1
Bit always ON for the first scan cycle
of the main program. It becomes
used, for example, to execute a
subprogram of initialization.
R
Bit 2
Bit that allows use of a 60-second
clock impulse (ON for 30 seconds,
OFF for 30 seconds).
R
Bit 3
Bit that allows use of a 1-second
clock impulse (ON for 0.5 seconds,
OFF for 0.5 seconds).
R
Bit 4
Bit clock of scan cycles that is active
(ON) for a cycle and deactivated
(OFF) for the successive cycle. It can
be used as an input for counting
scan cycles.
R
Bit 6
Bit ON during the transmission
phase of data on serial port COM1. It
is automatically switched OFF at the
end of the transmission.
R
Bit 7
Bit ON during the transmission
phase of data on serial port EXP1. It
is automatically switched OFF at the
end of the transmission.
R
Bit 8
Bit ON during the transmission
phase of data on serial port COM2. It
is automatically switched OFF at the
end of the transmission.
R