122 Communication protocol
For more information, see section PROFIBUS SD2 telegram for
Default SAP (0) and SAP 58-62 on page 121.
SAP 58 (Global_Control)
This SAP is used to send special commands addressed to a single
slave, a special group of slaves, or all slaves at once (broadcast).
Global_Control
Type: Octet String - Length: 2
DU Byte Description
0 GC_Command
1 Group_Select
0…255. The value must match the Group Identification number
of SAP 61 (DU Byte 6).
00xxxxx0
00 = No function
10 = Activated
x1 = Deactivated
MSB LSB
00 = No function
10 = Activated
x1 = Deactivated
Reserved
Clear Data
0 = Do not clear output
1 = Clear output
Reserved
Un_Sync
Sync
Freeze
Unfreeze
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