P0835; P0835 ... P0846 – Ethernet Write Words #5 ... #16 - WEG SCA06 User Manual

each word.
The first four read words are pre-defined, representing the value of the status word, motor speed, torque current
and present control mode (refer to item 6.1), and are always sent to the network master. The words #5 to #16 can
be programmed by the user. By using these parameters it is possible to program the number of another parameter
whose content must be made available at the network master input area. If, for instance, one wants to read from the
SCA06 servo drive the motor current in Amps, one must program the value 3 in one of these parameters, because
the parameter P0003 is the one that contains this information. It is worthwhile to remind that the value read from any
parameter is represented with a 16 bit word. Even if the parameter has decimal resolution, the value is transmitted
without the indication of the decimal places. E.g., if the parameter P0003 has the value 4.7A, the value supplied via
the network will be 47.
The number of read words is defined by programming zero in the last parameter required for communication. Besides
the four predefined words, it will also be added to the input area the words programmed in these parameters if the
contents programmed for these parameters is different from zero. The first parameter set to zero disables the use of
itself and the other parameters in the sequence. For example, if you set P0820 = 0, only four predefined read words
(state, speed, torque current and present control mode) will be communicated with the master.
The same number of words programmed into the equipment must be programmed in the master when configuring
the network.
NOTE!
If, after parameter settings, the number of words changes, to make the new configuration effective the
equipment must be powered off and on again, or an update must be performed by P0849.
P0835 ... P0846 – ETHERNET WRITE WORDS #5 ... #16
Range:
Properties:
Description:
These parameters allow programming the number of write words (outputs: master → slave), as well as the content
of each word.
The first four write words are pre-defined, representing the value of the control word, speed reference, torque reference
and control mode (refer to item 6.2), and are always received from the network master. The words #5 to #16 can
be programmed by the user. By using these parameters it is possible to program the number of another parameter
whose content must be made available at the network master output area. If, for instance, one wants to write to
the SCA06 servo drive the ramp for STOP function, one must program the value 105 in one of these parameters,
because the parameter P0105 is the one to program this information. It is worthwhile to remind that the value written
from any parameter is represented with a 16 bit word. Even if the parameter has decimal resolution, the value is
transmitted without the indication of the decimal places. E.g., if the parameter P0105 has the value 5.0s, the value
supplied via the network will be 50.
Table 5.6: Read words programming
Input
(slave → master)
Status word
Motor speed
Torque current
Present control mode
Programmable in P0820
Programmable in P0821
Programmable in P0822
.
.
.
Programmable in P0831
0 ... 9999
RW, ETH
Number of read words
4
5
6
7
Parameterization
16
Default: 0
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