User manual

Chapter 5 Communication| CME-PD01
Revision October 2006, 2006PDD23000013 5-7
NOTE
In IND, Bit 15 uses a multiplier of 20, so the value of Bit 15 for the access P2000- P3999 must
be set to 1.
5.3.5.3 Parameter Value (PWE) 3rd and 4th Word
All parameters for the VFD-E series are 16-bit. A 16-bit parameter value is transferred by
PWE2 (4th word). PWE1 (3rd word) must be set to 0 on the PROFIBUS-DP master in this
case.
5.3.5.4 Examples for PKW Mechanism
Example 1: Read data of parameter P0003
To read value of P0003, set the request ID to 1 (request parameter value - word). Because
P0003 is less than 2000, the Para Page Select is 0, thus, the data sequence are as follows:
Master  CME-PD01 : 1003 0000 0000 0000 request value of P0003
CME-PD01  Master : 1003 0000 0000 1770
Request Response
Word 1 (PKE) 1003 Word 1 (PKE) 1003
Word 2 (IND) 0000 Word 2 (IND) 0000
Word 3 (PWE1) 0000 Word 3 (PWE1) 0000
Word 4 (PWE2) 0000 Word 4 (PWE2) 1770
CME-PD01 responds the value of P0003. All parameters in VFD-E series are 16-bit value,
so the value is transferred to PWE2 (4th word). The value of P0003 is 0x1770 (6000
decimal). In the VFD-E series, it is “Maximum Output Frequency”.
Example 2: Read command frequency in VFD-E series (0x2102)
To read value of command frequency, set the request ID to1, we should set the Para Page
Select because the parameter address is greater than 2000. The address 0x2102 is 8450 in
decimal, if set Page Select to 4, then the Basic PNU is 8450 – 4*2000 = 450 (0x1c2), thus,
the data sequence are as follows:
Master  CME-PD01 : 11C2 2000 0000 0000 request value of address 0x2102
CME-PD01  Master : 11C2 2000 0000 0868