6.4 Parameter Management (Read/write)
The Profinet Module can read parameter values from and write parameter values to the soft starter. The
module handles one parameter at a time.
The module references parameters according to their position in the starter's parameter list.
•
Parameter number 1 corresponds to Pr
1A
Motor Full Load Current
•
The Digistart D3 has 160 parameters. Parameter number 160 corresponds to Pr
16X
Low Control
Volts
.
Use the following structures to read parameter values from or write parameter values to the soft starter.
Master > Slave output bytes are structured as follows.
Table 6-8 Programming output byte structure
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 2
Parameter number to read/write
Byte 3
Reserved
Reserved
Reserved
Reserved
Reserved
Write
parameter
Read
parameter
Reserved
Byte 4
Low byte parameter value to write to soft starter/ zero data values for read
Byte 5
High byte parameter value to write to soft starter/ zero data values for read
Slave > Master input bytes are structured as follows.
Table 6-9 Programming input byte structure
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 114
Echo parameter number
Byte 115
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Invalid
parameter
value
Invalid
parameter
number
Byte 116
Low byte parameter value read from soft starter
Byte 117
High byte parameter value read from soft starter
Profinet Module: User Guide
17
Issue: B
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