General information and technical specifications / Technical specifications / Specifications of the configurable RS-485 interface
MasterCAN RS2CAN / CAN2RS data converters. Operation manual. Version 1.0
©
Technoton, 2020
15
1.4.3 Specifications of the configurable RS-485 interface
RS-485 configurable interface is the input interface for
MasterCAN RS2CAN
data converter and
the output interface for
MasterCAN CAN2RS
data converter. Its characteristics meet the
standard of RS-485 serial interface.
The converters conduct data exchange via RS-
485 interface in the “reponse/request” mode,
according to Modbus RTU Protocol.
The connection of the converters via RS-485 interface is configured (see
) via K-line
interface (ISO 14230) using Service S6 MasterCAN service software (versions from 3.15 and
higher). You can download the software at
You can generate maximally up to 100 slots for data conversion to/from RS-485 interface.
During the operation of devices with RS-485 interface in the network
MasterCAN RS2CAN
is
always the Master device. The converter can read data from Slave devices operating in the
same network with it from any selected register of Modbus RTU protocol. Network addresses of
Slave devices and
MasterCAN CAN2RS
may be specified from 0…255 range. The network
address of
MasterCAN CAN2RS
by default is 134.
During the transfer of the converted data
MasterCAN CAN2RS
always operates in the Slave
mode. The Master device operating in the same network with it may read data from any
selected Modbus RTU register of the converter.
MasterCAN CAN2RS
network address may be
specified from 0…255 range (by default —
135).
Baudrate can be selected from the following values: 2400; 4800; 9600; 19200; 38400;
57600; 115200 bit/s (by default 19200 bit/s).
