Siemens SINUMERIK 840Di Function Manual page 969

Signal list
Data block DB 76 is set up when the function is activated.
A bit is set in the appropriate group in DB 76 for an M signal decoded in the list.
At the same time, a readin disable is set in the channel in which the M function has been
output.
Activation of the function
The number of groups to be evaluated is specified in basic-program parameter
ListMGDecGrp.
The decoding function is activated if this value is between 1 and 16.
Before activation of decoding, the decoding list DB75 must be transferred to the PLC
followed by a restart.
Example
The table below contains the parameters for the following programming example:
Example parameters
Group
1
2
3
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Decoding list (DB 75)
Extended First
M address M address
2 1
3 12
40 55
2.7 Structure and functions of the basic program
Signal list
Last DB 76
M address
in group
5 DBX0.0 to DBX0.4
23 DBX2.0 to DBX3.3
55 DBX4.0
Detailed description
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