Riello-ups MultiCOM 401 Bedienungsanleitung PDF herunterladen (Seite 11)

PKW-PART

The parameter part (PKW) is fixed to 4 words and can be used for reading and/or updating the

parameters in the application one by one. Requests and responses use the predefined handshake

procedure.

The PKW is further divided into three parts:

1. PKE: Parameter ID (2 bytes);

2. IND: Sub-index (2 bytes), 2nd byte isn’t used and should be set to 0;

3. PWE: Parameter value (4 bytes).

PKW

PKE

Parameter ID

IND

Sub-index

PWE

Parameter value

Word 0

b15 . . . . . . . . . . . . . . b0

Word 1

b15 . . . . . . . . . . . . . . b0

Word 2

b15 . . . . . . . . . . . . . . b0

Word 3

b15 . . . . . . . . . . . . . . b0

PKE consists of three parts:

1. AKA: command/response identificator (4 bits);

2. SPM: toggle bit, not used (1 bit);

3. PNU: parameter number (11 bits).

PKE

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

AKA SPM PNU

PNU parameters:

1÷799 are UPS PARAMETERS;

800÷899 are GATEWAY INTERNAL PARAMETERS;

900÷999 are PROFIDRIVE STANDARD PARAMETERS.

AKA field meanings (master → slave)

Value Function Ack+ Ack- Note

0 No request 0 -

1 Request parameter value 1 7

2 Change parameter value (word) 1 7/8

3 Change parameter value (long word) 2 7/8

4 Request description element 3 7 not used

5 Change description element 3 7 not used

6 Request parameter value (array) 4 7

7 Change parameter value (array word) 4 7/8

8 Change parameter value (array long word)* 5 7/8 not used

9 Request number of array elements 6 7

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 23 24

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