Siemens SIMATIC FM 453, Manual

Page: 106 / 380

6-10
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
The status of a write job is indicated in the user DB (in data byte DBB1).
Table 6-2 Write Job Status
Bit in JOB_WR
(DBX1.)
Significance
.BUSY, 0 = 1, write job busy
This bit is set by FC MODE_WR as soon as it starts processing a write job
(JOB_WR.NO > 0 and bit 2 JOB_WR.IMPOSS = 0).
This bit is cleared by FC MODE_WR as soon as the write job has finished running
(JOB_WR.NO = 0).
.DONE, 1 = 1, write Job finished
This bit is set by FC MODE_WR as soon as it has finished a write job
(also with error and unknown job)
.
This bit is cleared by FC MODE_WR when a new write job
begins. You can clear this bit manually
.
.IMPOSS, 2 = 1, write job processing is not possible in this cycle:
– because the axis is not parameterized
– because test mode is active
– because no mode is active
– because the selected mode is not yet active
In this case, you can leave the write job (JOB_WR) or
delete it. FC MODE_WR clears the bit when all the above conditions have been met.
.UNKNOWN, 3 = 1, Write job unknown
The write job (JOB_WR) which you specified is not within the known range.
(see error evaluation). FC MODE_WR clears this bit as soon as JOB_WR contains
a valid number. The unknown number is retained until then.
.MODE_BUSY, 6 = 1, when a mode/movement is started with the appropriate control signals or
on a BL = 1 checkback (busy).
MODE_BUSY
when FC is called/started
WORKING (BL)
when movement is started by FM
.POS_REACHED, 7 0 = on the checkback POS_ROD = 0 (position reached, stop) or when a mode
is started with the appropriate control signals.
POS_REACHED
POS_POD [PEH]
when FC is called/started
when movement is started by FM
Write Job Status
Programming the FM 453