Parameter List  09.02 
5-38  Siemens AG    6SE7087-6AK85-1AA0 
  Rectifier/Regenerating Unit    Operating Instructions 
PNU 
 
*
 
: Conf. 
    Par. 
OP1S parameter name 
 
Description 
Value range  
[phys. unit] 
Selection text 
Display 
Indices 
Factory- 
setting 
See 
Modify 
(access / 
status) 
5.16 Profile parameters 
P917 
* 
Change Reports 
Control word for spontaneous messages 
If the value of an active parameter is changed, the new value is reported to 
the programmable controller connected by means of the spontaneous 
reporting mechanism. This function can be activated and de-activated for 
each interface. 
 
Important: 
When the control word is modified, spontaneous message buffers can be 
deleted with the loss of spontaneous messages! 
 
0  No spontaneous messages 
1  Output of spontaneous messages over the DPR interface 
(TB/CB) 
2  Output of spontaneous messages over the BASE SERIAL 
interface (SST1) 
4  Output of spontaneous messages over SCB with USS protocol 
 
Setting help: 
Each interface is coded with a number. 
Enter the number and/or the sum of several numbers assigned to the 
interfaces to enable the spontaneous message mechanism for the relevant 
interface(s). 
 
PNU=395Hex; Type=O2; Scaling: 1Hex 
=
∧
 1 
0 to 7 
 
 
 
 
 
 
 
 
 
 
inactive 
TB/CB 
SCom 
SCB (USS) 
- 
0 
3/    BR 
3/    B 
P918  CB Bus Address 
Protocol depending bus address for communication board; see manual of 
this board. 
 
Notes: 
The communication board checks, if the set value is valid. (Bus addresses 0 
to 2 are reserved for master stations). If the value is not accepted, the fault 
message 80 is issued with fault value 5 
 
Condition: 
P090=1 or P091=1 (communication board installed) 
 
PNU=396Hex; Type=O2; Scaling: 1Hex 
=
∧
 1 
0 to 200  - 
3 
3/  HBR 
3/  H 
P927 
* 
Parameter Access 
Release of interfaces for the parameterization. 
This parameter performs the same function as P053. 
Parameter P053 can always be modified. 
 
For description, see P053. 
 
PNU=39FHex; Type=O2; Scaling: 1Hex 
=
∧
 1 
0 to 31  - 
6 
3/    BR 
3/    BR 
P928 
* 
Src Base/Reserve 
Source of the switching command 'base / reserve settings' (control word 2, 
bit 30) 
This parameter performs the same function as P590. 
 
For description, see P590. 
 
PNU=3A0Hex; Type=L2; Scaling: 1Hex 
=
∧
 1 
0 to 6005  - 
1005 
3/    BR 
3/    BR 
AoteWell Automation Sales Team
Buy Siemens PLC HMI Drives at AoteWell.com