Flintec MCS-64 CANbus - Manual (Page 34)

Page Manual MSC-64 34
4.3 Motion detection Commands – NR, NT
The motion detection facility provides a means of disabling certain functions whenever a
condition of instability, or “motion”, is detected. The “no-motion”, or “stable” condition is
achieved whenever the signal is steady for the period of time set by NT, during which it
cannot fluctuate by more than NR increments.The stable condition activates the relevant bit
of responses to “Info Status” (IS).
The following functions are disabled if motion is detected: “Calibrate Zero” (CZ) “Calibrate
Gain” (CG) “Set Zero” (SZ) and “Set Tare” (ST).
NR
No Motion range [ 2100sub0A ]
This is the range within which the weighing signal is allowed to fluctuate and still be
considered as “stable”. Permitted values are between 0 and 65535.
Master (PC / PLC) sends Device responds Result
NR R+00010
Request: NR = 10 d
NR_2 OK
Setting: NR = 2
WP OK
Setting saved
NR = 2 i.e. fluctuations within a maximum of ± 2 d, in the period NT, will be considered
“stable”.
Factory default: NR = 1.
NT
Stabilisation time for in motion band
[ 2100sub0B ]
This sets the time (in milliseconds) over which the weight signal is checked to see if it is
“stable” or has “no-motion“. The weight signal has to vary by less than NR divisions over the
time period NT to be considered ‘stable’.
Permitted range 0-65535 milliseconds.
Master (PC / PLC) sends Device responds Result
NT T+01000
Request: NT = 1000 ms
NT_500 OK
Setting: NT = 500 ms
WP OK
Setting saved
If the value of NT =500 milliseconds, the output must not fluctuate more than NR
increments within 500 milliseconds in order to be considered “stable”.
Factory default: NT = 1000 [=1000 ms].