YOKOGAWA F3LP32-0N, User Manual

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2-7
IM 34M06H43-02E 2nd Edition : Sep.30, 2019-00
2.5.5 Special Relays
Special relays with special functions are used only as contacts. They provide
information on the various stations in the data link system.
Table 2.5.6 Special Relays(1/3)
Relays
Number
for FA
Link 1
Turns on
when…
Cause
/Explanation
LED Display
Remarks
Status of FA
Link
Module
*2
CPU
FA
Link
M0257
*1 *3
Station
number
error
occurs - A number other
than 01-32 is
specified as the
station number.
- Station number
1 is duplicated.
RDY (green)
RUN (green)
ALM (yellow)
ERR (off)
RDY (green)
SND (off)
LNK (off)
ERR (red lit)
- The ERR LED on the front of the
FA Link module lights up.
(It turns off when the cause of the
error is eliminated).
- The ALM LED of the sequence
CPU using the link data also lights
up. (The LED turns off when the
alarm is acknowledged using
WideField3 after the cause of the
error had been eliminated. The
special relay turns off
simultaneously.) OFF-LINE
M0258 *4
Configurati
on data
error
occurs. There is a
checksum error in
the configuration
information stored
in a FA Link
Module. RDY
(green)
RUN (green)
ALM (off)
ERR (off)
RDY (off)
SND (off)
LNK (off)
ERR (red)
The RDY LED on the front of the FA
Link module turns off and the ERR
LED lights up. OFF-LINE
M0259 *5
Duplicate
allocation
of device
occurs. A link relay or link
register is doubly
allocated. RDY (green)
RUN (green)
ALM (off)
ERR (off)
RDY (green)
SND (off)
LNK (off)
ERR (red)
The "ERR" LED on the front of the
FA Link module lights up. OFF-LINE
M0260 *6
FA Link
module
restarts An FA Link
Module has
restarted due to a
hardware failure
or the like. RDY (green)
RUN (green)
ALM (off)
ERR (off)
RDY (green)
SND (off)
LNK (off)
ERR (off)
OFF-LINE
*1:
If any station number between 2 to 32, inclusive is duplicated, the error is not detected.
However, link data of the entire system incorporating that station cannot be updated normally.
*2: When a station is off-line, its link data is not updated. However, the link data of the remaining stations in the FA link
system is updated.
Table 2.5.7 Special Relays(2/3)
Relays
Numbers
for FA
Link 1
Turns On When…
Cause
/Explanation
Remarks
M0273 *7
to
M0304
Turns on for station numbers 1
to 32 if the relevant station is
not connected or if it is unable
to communication due to an
error.
These relays are read-only and
indicate the communication
status.
16 15 3 2 1
19 18 17 31 32
The communication status, CPU operating
status, and sequence operating status for
stations 1 to 32 are each allocated two
words (6 words in total per station) in the
configuration shown above.
M0305 *8
to
M0336
If the CPU module or add-on
CPU module of a station is the
Not Ready state, the
corresponding relay turns on.
These relays are read-only and
indicate the operating status of
a CPU. A Not Ready state
means that initialization is being
requested or that the CPU is
down.
M0337 *9
to
M0368
If the CPU module or add-on
CPU module of a station is no
sequence program is running,
the corresponding relay turns
on.
These relays are read-only and
indicate the status of
sequencing. If the CPU is in
the Not Ready state, the
sequencing also stops (the
relay is on.)
Mnnnn+15 Mnnnn
Mnnnn+31 Mnnnn+16