Detailed description
2.13 Signal/data descriptions
Basic logic functions: PLC basic program solution line (P3 sl)
250 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.13.2 Decoded M signals
General
The M functions programmed in the part program, ASUB or synchronized actions are
channel specifically transferred from the NC to the PLC:
• M functions from channel 1: DB21
• M functions from channel 2: DB22
• etc.
The signal length is one PLC cycle.
Note
The spindle-specific M functions below are not decoded: M3, M4, M5, and M70.
Addresses in DB21, ... Variable Type Comment
DBX 194.0 ... 7 M_Fkt_M0 ... M7 BOOL M signals M0 ... M7
DBX 195.0 ... 7 M_Fkt_M8 ... M15 BOOL M signals M8 ... M15
DBX 196.0 ... 7 M_Fkt_M16 ... M23 BOOL M signals M16 ... M23
DBX 197.0 ... 7 M_Fkt_M24 ... M31 BOOL M signals M24 ... M31
DBX 198.0 ... 7 M_Fkt_M32 ... M39 BOOL M signals M32 ... M39
DBX 199.0 ... 7 M_Fkt_M40 ... M47 BOOL M signals M40 ... M47
DBX 200.0 ... 7 M_Fkt_M48 ... M55 BOOL M signals M48 ... M55
DBX 201.0 ... 7 M_Fkt_M56 ... M63 BOOL M signals M56 ... M63
DBX 202.0 ... 7 M_Fkt_M64 ... M71 BOOL M signals M64 ... M71
DBX 203.0 ... 7 M_Fkt_M72 ... M79 BOOL M signals M72 ... M79
DBX 204.0 ... 7 M_Fkt_M80 ... M87 BOOL M signals M80 ... M87
DBX 205.0 ... 7 M_Fkt_M88 ... M95 BOOL M signals M88 ... M95
DBX 206.0 ... 3 M_Fkt_M96 ... M99 BOOL M signals M96 ... M99
Note
The M02/M30 auxiliary function output to the PLC does not state that the part program has
been terminated. In order to securely identify the end of a part program in the channel,
DB21, ... DBX33.5 (M02/M30 active)
must be evaluated. The channel status must be RESET. The auxiliary function output could
arise from an asynchronous subroutine (ASUB) or a synchronized action and has nothing to
do with the real end of the parts program in this case.
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