Siemens SINUMERIK 840Di Function Manual page 1868

Detailed Description
2.1 Various interface signals and functions (A2)
DB10
DBX108.1 MMC CPU2 Ready (to OPI or MPI)
Edge evaluation: no
Signal state 1 or The MMC2 CPU is ready and registers itself cyclically with the NCK.
edge change 0 → 1
Signal state 0 or The MMC CPU is not ready.
edge change 1 → 0
DB10 MMC CPU1 Ready (MMC to MPI)/
DBX108.2 - MMC CPU1 Ready (MMC to OPI, standard connection)
DBX108.3
Edge evaluation: no
Signal state 1 or The MMC CPU is ready and registers itself cyclically with the NCK.
edge change 0 → 1
Signal state 0 or The MMC CPU is not ready.
edge change 1 → 0
Application The appropriate measures can be introduced by the PLC user program if "MMC-CPU1-Ready" = 0.
example(s)
References /DA/ Diagnostics Guide
DB10
DBX108.6 611D-Ready
Edge evaluation: no
Signal state 1 or All existing drives signal the status drive ready (summary of axial interface signals "DRIVE ready").
edge change 0 → 1
Signal state 0 or As soon as the drive not ready status is signaled from a drive
edge change 1 → 0 (i.e. IS "DRIVE ready" = 0).
Signal irrelevant SINUMERIK 840Di
for ...
Corresponding to .... DB31, ... DBX93.5 (DRIVE ready)
2-4
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Signal(s) updated: cyclic
NC/PLC Interface Signals (Z1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0