Delta PROFIBUS-DP Module for VFD Series Drives PD-01 User Manual download pdf (Page 18)

PD-01 PROFIBUS-DP Module

NOTE:

Table above is for reference only, please check VFD series Drives user manual for

details. PD-01 will get the status word from VFD series Drives, so the bit assignments in

the user manual of VFD series Drives is valid.

Accessing parameters via PKW area

In cyclical data, PD-01 can provide request and response (read / write) message to

access the parameters of VFD series Drives. Due to the request and response

mechanism, the master must send the request until it receives a corresponding

response.

PKW have at least 4 words:

Word 1 Parameter ID (PKE)

15 12

SPM

10 0

Parameter number (PNU)

Word 2 Parameter sub-index (IND)

15 8 7 0

Word 3 PWE1 reserved in PD-01

Word 4 PWE2 parameter value of read/write

PKE

Bits 0 to 10 (PNU) contain the number of the relevant parameter.

Bit 11 is reserved.

Bits 12 to 15 (AK) contain the request or the response identifier.

Request identifier (master  PD-01)

Request Identifier Meaning

0 No request

1 Request parameter value

2 Modify parameter value (word)

Response identifier (PD-01  master)

Response Identifier Meaning

0 No response

1 Transfer parameter value (word)

7 Cannot process request (with error number)

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 35 36

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Delta PROFIBUS-DP Module for VFD Series Drives PD-01 User Manual Page 18