Configuring The Network Master To Serial Slaves Mode; Parameter Settings - ABB ARR600 User Manual

1MRS758458 F
10.3
10.4
ARR600
User Manual
Configuring the network master to serial slaves
mode
1. In the left pane, under Serial Port and I/O, click Modbus Gateway (RSx).
2. Set Enable Modbus gateway to Yes.
3. Set Gateway mode to Network master to serial slaves.
4. Set the parameters under Serial settings, Protocols, Framing, Exceptions
and Network server settings as the network and the Modbus master and
slaves require.
5. Click Submit to save the settings.
6. Restart the device.

Parameter settings

Table 17: Parameters
Name Description
Basic settings
Enable If set to "Yes", the Modbus gateway functionality is enabled for
Modbus the serial port. Each serial port of the device has its own Modbus
gateway gateway definitions.
Serial settings
Serial port Defines the serial port that the device uses for Modbus serial
communication. The possible settings are "RS1", which selects
serial port 1 (RS-232 console/application port) and "RS2", which
selects serial port 2 (RS-232/422/485 application port). If a
single serial port or RS-422/485 is required, port 2 is
recommended. If Port 1 is used, the console switch of the device
must be in the Application position. DIP switches below the DB-9
serial connector specify the RS-232/422/485 settings of Port 2.
Serial settings
Speed Defines the serial port speed for Modbus communication in bps.
The optimal speed depends on the connected Modbus
equipment.
Data bits Defines the number of data bits used in Modbus serial
communication. The required number depends on how many
data bits the connected Modbus equipment supports. Generally
Modbus RTU communication uses 8 data bits and Modbus
ASCII communication uses 7 data bits.
Parity Defines the parity method used in Modbus serial
communication. If set to "None", no parity method is used. If set
to "Even", an even parity bit is generated and inspected. If set to
"Odd", odd parity bits are generated and inspected.
Stop bits Defines the number of stop bits used in Modbus serial
communication.
Table continues on next page
Modbus application settings
Section 10
Value range
No, Yes
RS1, RS2
300, 1200,
2400, 4800,
9600, 19200,
38400, 57600,
115200
5, 6, 7, 8, Auto
None, Even,
Odd
1, 2
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