Nidec AD3000 User Manual

7 – EtherNet/IP AD3000
NIDEC ASI S.P.A. – AD3000 COMMUNICATION MANUAL
46 IMAD30007EN
7.13.1 Parameterisation message sent by the master to the slave
Such message consists of 4 words.
Word
Meaning
1st word (PKW1)
Ty pe of operation code:
- PKW1 = 1 Reading of required v alue parameter in 32 bit integer format
- PKW1 = 2 Reading of required v alue parameter in 32 bit float format
- PKW1 = 3 Writing of required v alue parameter in 32 bit integer format
- PKW1 = 4 Writing of required v alue parameter in 32 bit float format
2nd word (PKW2)
Parameter ID of the configuration datum on w hich to perform the operation defined by the PKW1 w ord.
3rd word (PKW3)
Most significant part of the processed datum (MSW). Only for operation code 3 and 4.
4th word (PKW4)
Least significant part of the processed datum (LSW). Only for operation code 3 and 4.
Table 7.6 - Structure of PKW message from master to slave
WARNING
To ensure correct of the Drive parameterisation protocol, it is recommended that the master continues to send the message until it receives the reply
from the slave. After that, the master can avoid sending the message again.
For listed parameters, the parameter value to indicate the choice is given in the relevant parameter tables in Annex
A; namely, it is the value appearing to the side of the description of the choice
7.13.2 Parameterisation message sent by the slave to the master
This message consists of 4 words as well.
Word
Meaning
1
st
word (PKW1)
Ty pe of operation code:
If the operation requested by the master cannot be admitted, the most significant bit of w ord 1 (PKW1) is set to 1. The error
code is w ritten on w ord 3 (PKW3)
- PKW1 = 1 Reading of required v alue parameter in 32 bit integer format
- PKW1 = 2 Reading of required v alue parameter in 32 bit float format
- PKW1 = 3 Writing of required v alue parameter in 32 bit integer format
- PKW1 = 4 Writing of required v alue parameter in 32 bit float format
2
nd
word (PKW2)
Parameter ID of the configuration datum on w hich to perform the operation defined by the PKW1 w ord.
3
rd
word (PKW3)
Most significant part of the processed data (MSW).
If the operation requested by the master cannot be admitted (most significant bit of w ord 1 = 1), the error code is w ritten in this
w ord:
- PKW3 = 2: Non-ex istent parameter
- PKW3 = 3: Non-ex istent operation code
- PKW3 = 4: Non-w ritable parameter
- PKW3 = 7: Writing attempt of single v alue on buffer parameter
- PKW3 = 10: Value out of range
4
th
word (PKW4)
Least significant part of the processed datum (LSW).
Table 7.7 - Structure of PKW message from slave to master
NOTE

Nidec AD3000 Specifications

General

Brand	Nidec
Model	AD3000
Category	DC Drives
Language	English