TECO F33 Series, Инструкция по эксплуатации, Страница: 61 / 192

58 Serial communication
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 descrip-
tion in section section 11.8.2, page 149.
10.4 Start and stop commands
Set start and stop commands via serial communica-
tion.
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
standard 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 system.
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 regis-
ter has 3 significant digits, it will be stored as 1000.
In the TECO 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 deci-
mals) number between 0-32767, the TECO 15-bit fixed
point format (F=0) may be used.
F=Format. 1=TECO floating point format, 0=15 bit
TECO 15-bit fixed point format.
The matrix below describes the contents of the 16-bit
word for the two different EInt formats:
Example of TECO floating point format
A signed number should be represented as a two com-
plement binary number, like below:
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
e3-e0 4-bit signed exponent.
-8..+7 (binary 1000 .. 0111)
m10-m0 11-bit signed mantissa.
-1024..+1023 (binary
10000000000..01111111111)
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