Emotron VFX 2.0 User Manual

50 Serial communication Emotron AB 01-4429-01r2
10.3 Motor data
Communication information for the different motors.
M1 contains parameters 43041 to 43048. The M2, M3, and
M4 contains the same type of information. For example
parameter 43043 in motor M1 contain the same type of
information as 44043 in M2.
A DeviceNet instance number can easily be converted into a
Profibus slot/index number according to description in sec-
tion section 11.8.2, page 144.
10.4 Start and stop commands
Set start and stop commands via serial communication.
10.5 Reference signal
The reference value is set in modbus number 42905. 0-4000
h corresponds to 0-100% of actual reference value.
10.6 Description of the EInt
formats
Modbus parameters can have different formats e.g. a stand-
ard unsigned/signed integer, or eint. EInt, which is described
below. All parameters written to a register may be rounded
to the number of significant digits used in the internal sys-
tem.
If a parameter is in Eint format, the 16 bit number should
be interpreted like this:
F EEEE MMMMMMMMMMM
F Format bit:
0=Unsinged integer mode,
1=Eint mode
EEEE 2 complement signed
exponent
MMMMMMMMMMM 2 complement signed
mantissa.
If the format bit is 0, then can a positive number 0-32767 be
represented by bit 0-14.
If the format bit is 1, then is the number interpreted as this:
Value = M * 10^E
Example
If you write the value 1004 to a register and this register has
3 significant digits, it will be stored as 1000.
In the Emotron floating point format (F=1), one 16-bit
word is used to represent large (or very small numbers) with
3 significant digits.
If data is read or written as a fixed point (i.e. no decimals)
number between 0-32767, the Emotron 15-bit fixed point
format (F=0) may be used.
F=Format. 1=Emotron floating point format, 0=15 bit
Emotron 15-bit fixed point format.
The matrix below describes the contents of the 16-bit word
for the two different EInt formats:
Motor
Modbus/DeviceNet
Instance number
Profibus
Slot/Index
M1 43041–43048 168/200 to 168/207
M2 44041–44048 172/180 to 174/187
M3 45041–45048 176/160 to 176/167
M4 46041–46048 180/140 to 180/147
Modbus/DeviceNet
Instance number
Integer
value
Function
42901 0 Reset
42902 1
Run, active together with
either RunR or RunL to
perform start.
42903 2 RunR
42904 3 RunL
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
F=1 e3 e2 e1 e0 m10 m9 m8 m7 m6 m5 m4 m3 m2 m1 m0
F=0 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

Emotron VFX 2.0 Specifications

General

Brand	Emotron
Model	VFX 2.0
Category	DC Drives
Language	English