Signal/Data Descriptions; Interface Signals Nck/Plc, Hmi/Plc, Mcp/Plc; Decoded M Signals - Siemens SINUMERIK 828D Function Manual

P3: Basic PLC Program for SINUMERIK 840D sl

13.14 Signal/data descriptions

13.14 Signal/data descriptions
13.14.1

Interface signals NCK/PLC, HMI/PLC, MCP/PLC

References
The NCK/PLC, HMI/PLC and MCP/PLC interface signals are contained in the Lists document.
Lists sl (Book2)
The reference code contained therein (according to the signal names) refer to the respective function description,
in which the signal is described.
The NCK signals that are evaluated by the basic program and transferred in conditioned form to the user
interface are presented in the following sections.
13.14.2

Decoded M signals

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: DB 21
• M functions from channel 2: DB 22
• etc.
The signal length is one PLC cycle.
Note
The spindle-specific M functions below are not decoded: M3, M4, M5, and M70.
Address in DB 21, ...
DBX 194.0 ... 7
DBX 195.0 ... 7
DBX 196.0 ... 7
DBX 197.0 ... 7
DBX 198.0 ... 7
DBX 199.0 ... 7
DBX 200.0 ... 7
DBX 201.0 ... 7
DBX 202.0 ... 7
DBX 203.0 ... 7
DBX 204.0 ... 7
DBX 205.0 ... 7
DBX 206.0 ... 3
1072
Variable
M_Fkt_M0 ... M7
M_Fkt_M8 ... M15
M_Fkt_M16 ... M23
M_Fkt_M24 ... M31
M_Fkt_M32 ... M39
M_Fkt_M40 ... M47
M_Fkt_M48 ... M55
M_Fkt_M56 ... M63
M_Fkt_M64 ... M71
M_Fkt_M72 ... M79
M_Fkt_M80 ... M87
M_Fkt_M88 ... M95
M_Fkt_M96 ... M99
Type Comment
BOOL M signals M0 ... M7
BOOL M signals M8 ... M15
BOOL M signals M16 ... M23
BOOL M signals M24 ... M31
BOOL M signals M32 ... M39
BOOL M signals M40 ... M47
BOOL M signals M48 ... M55
BOOL M signals M56 ... M63
BOOL M signals M64 ... M71
BOOL M signals M72 ... M79
BOOL M signals M80 ... M87
BOOL M signals M88 ... M95
BOOL M signals M96 ... M99
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions