CONTREX ML-Drive - Manual (Page 88)

3 - 54
Character 4 - Message Type:
This character should always be “3”.
Character 5, 6 - Parameter Number:
These characters identify the Control Parameter that you want to change
(i.e., “16” = CP-16).
Characters 7 through 10 - DATA:
These characters transmit the new value for a Control Parameter that you want to
change. The Data must be within the range specified in Appendix D.
Character 11 - Data Format:
Character 11 indicates the decimal location and polarity of the data that was
transmitted in characters 7 through 10. Use the following codes to indicate decimal
location and polarity:
Code Format
0 +XXXX
1 +XXX.X
2 +XX.XX
3 +X.XXX
4 -XXXX
5 -XXX.X
6 - XX.XX
7 -X.XXX
8 +XX.XX .
Codes “0 ” through “7” are valid for CP-20 and CP-21. All other Code Parameters
have either fixed or derived decimal locations and must use Code “0”. Code “8”
does not apply to the parameter send.