Parker Hannifin S.p.A Divisione S.B.C. user’s manual TWIN-N and SPD-N
125
Acyclic data write message or parameter request from the master to the drive
Acyclic data write or request
Data length
7 byte
Field Name
Cmd & Len Data Address Data
Contents
5 bit command and 3 bit length 16 bit data address 32 bit data
Identifier
ID2 ID1 ID0 - - - - - ID10 ID9 ID8 ID7 ID6 ID5 ID4 ID3
A2 A1 A0 X X X X X 0 0 0 0 1 0 0 A3
A0:A3 SLVD_N slave address (Pr27+1), valid values 1..15.
Cmd & Len Sub-field Value Meaning
Cmd [0..4] 0 Read request
1 Write
2 SET bit Pr = Pr .OR. Data
3 RESET bit Pr = Pr .AND.
(.NOT.Data)
4 TOGGLE bit Pr = Pr .XOR. Data
5 – 31 Not use
Len [5..7] 0- 4 Number of significant bytes in the data field
Data Address
This is the address of the parameter interested in the operation (parameter number * 2).
The PLC instructions have the address from 8192 up to 8703.
The electronic cam0 table have the address from 4096 to 4609.
The electronic cam1 table have the address from 4610 to 5123.
The electronic cam2 table have the address from 5124 to 5637.
The electronic cam3 table have the address from 5638 to 6151.
Data
If the parameter is written, it contains the value of the parameter.
If one or more bits are modified, it contains the mask of the bits to be modified.
If the parameter is to be read, the field has no meaning.
If plc programme is written, it contains the instruction code (see the section Serial interface).
Acyclic response message to a parameter request from the drive to the master
Data reply
Data length
5 bytes
Field Name
Addr & Spare Data
Contents
Pr27+1 32 bit reply data
Identifier
ID2 ID1 ID0 - - - - - ID10 ID9 ID8 ID7 ID6 ID5 ID4 ID3
A2 A1 A0 X X X X X 0 0 0 1 1 0 0 A3
A0:A3 drive slave address (Pr27+1), valid values 1..15.
To Next Page
Loading...
Need help?
General
