Vacon 10, Полное руководство пользователя

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parameter descriptions vacon
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9.13 Modbus RTU
Vacon 10 has a built-in Modbus RTU bus interface. The signal level of the interface
is in accordance with the RS-485 standard.
The built-in Modbus connection of Vacon 10 supports the following function codes:
9.13.1 Termination resistor
The RS-485 bus is terminated with termination resistors of 120 ohms in both ends.
Vacon 10 has a built-in termination resistor which is switched off as a default (pre-
sented below). The termination resistor can be switched on and off with the right
hand dip switch located above IO-terminals in the front of the drive (see below).
Figure 9.20: Vacon 10 I/O
9.13.2 Modbus address area
The Modbus interface of Vacon 10 uses the ID numbers of the application parameters
as addresses. The ID numbers can be found in the parameter tables in chapter 8.
When several parameters / monitoring values are read at a time, they must be con-
secutive. 11 addresses can be read and the addresses can be parameters or moni-
toring values.
Function
code
Function name Address
Broadcast
messages
03 Read Holding Registers All ID numbers No
04 Read Input Registers All ID numbers No
06 Write Single Registers All ID numbers Yes
16 Write multiple registers All ID numbers Yes
Table 9.3: Modbus RTU
ON
OFF