ABB DCS 400 - 7.2 RS232-Port

II K 7-7
Serial Interfaces
7.2 RS232-Port
The RS232 interface is normally used for setting
parameter in the drive via the PC Tool Drive Window
Light.
The default settings of this interface are as follows:
Signal level: RS232 (+12V / -12V)
Data format: UART
Message format: Modbus-Protocol
Transmission method: half-duplex
Baudrate: 9.600 Baud
Number of Data bits: 8
Number of Stop bits: 1
Parity-Bit: odd
Parameter Settings of RS232-Port, for purpose of
external drive control via Modbus protocol:
Table 7.2/1: Settings of RS232-Port
1
9
5
6
X6: Description
1 not connected
2 TxD
3 RxD
4 not connected
5 SGND Signal ground
6...9 not connected
Fig. 7.2/1 Pin assignment of RS232-Port
Parameter Meaning Alternative settings Typical Setting
8.01 Module Type Disable
Fieldbus Par 1 Fieldbus
RS232-Port RS232-Port
Panel-Port
Res Fieldbus
8.02 Station Number 1…247 as required
Fieldbus Par 2
8.03 Baudrate 0 = 9.600 Bd
Fieldbus Par 3 1 = 19.200 Bd 0 = 9.600 Bd
8.04 Parity 0 = none (2 Stop bits)
Fieldbus Par 4 1 = odd (1 Stop bit) 0 = none
2 = even (1 Stop bit)
Switch Off and On electronics supply to initialize the RS232-Port for drive control
via PLC.
If these parameter settings done via PC Tool Drive Window Light after electronics
supply On, Drive Window Light does not work longer due to the Tool communica-
tion is disabled now.
For resetting parameters the control panel is needed!