Flowserve 400MD Logix - Manual (Page 96)

Table 10.16 Transducer Block Signature Parameters
Parameter Description Value-Meaning Comments
MODE_BLK
The operating mode of the
Transducer block
Permitted Modes: Auto-Auto
(target mode)
OOS-Out of Service
The transducer block must be in the OOS mode to perform
a Signature
SIG_START
Beginning position point for signature
to start.
Value is in percent and should be set in the
range of -10% to 110%.
SIG_STOP Ending position point for signature. Value is in percent and should be set in the
range of -10% to 110%.
RAMP_RATE
Desired time for ramp signature in
seconds.. Minimum value is 1
RAMP_RATE is only used in the ramp signature. This is ignored
in step signatures.
SIG_HOLD
Time in seconds after step or ramp
that the the system will log data.
SIG_FLAGS
Byte value which select
Which signature options
Are used
0x01 RUN/BEGIN_SIG
0x02 SIG_COMPLETE
0x04 TEST REPEAT MODE
0x08 RUN RAMP
0x10 VALVE_
0x20 END OF DAT
0x40 TEST DAC MODE
0x80 RUN PST
Select to initiate the signature
Status set when signature is complete
Select to run a ramp signature otherwise it defaults to a step
signiature.
Initializes valve for signature capture (read only
End of signiature data encountered when uploading.
Select for special DAC mode
Run Partial Stroke Test (PST)
SIG_INDEX
Pointer used for data
transfer
Write the desired packet
value.
Writing any value to SIG_INDEX will initiate a sig data transfer
and will populate the SIG_DATAn parameters in the XDTB_
TECH block.
SIG_DATAn
Arrays to hold the signature data after
transfer from controller board.
The DIG_DATAn parameters are populated with the latest
signature data when a write to the SIG_INDEX parameter is
done.
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