Siemens SINUMERIK 840D sl Function Manual page 2058

Detailed Description
2.1 Various interface signals and functions (A2)
DB31, ...
DBX94.7
Variable signaling function
Application With the variable signal function the machine tool manufacturer can monitor one additional
example(s) threshold value for specific applications for each axis/spindle and evaluate the result in the PLC
user program.
Example:
The interface signal:
DB31, ... DBX94.7 (variable signaling function)
should be set to a 1 if the motor torque exceeds 50 % of the rated torque.
Corresponding to .... MD1620 $MD_PROG_SIGNAL_FLAGS (bits variable signal function)
MD1621 $MD_PROG_SIGNAL_NR (signal number variable signal function)
MD1622 $MD_PROG_SIGNAL_ADDRESS (address variable signal function)
MD1623 $MD_PROG_SIGNAL_THRESHOLD (threshold variable signal function)
MD1624 $MD_PROG_SIGNAL_HYSTERESIS (hysteresis variable signal function)
MD1625 $MD_PROG_SIGNAL_ON_DELAY (on delay variable signal function)
MD1626 $MD_PROG_SIGNAL_OFF_DELAY (off delay variable signal function)
Additional references /IAD/ SINUMERIK 840D Installation and Startup Guide; Chapter: SIMODRIVE 611D
or
/IAC/ SINUMERIK 810D Installation and Start-up Guide
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Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0