Galil DMC-2X00 user manual RS422 Main Port P1, RS422 Auxiliary Port P2, RS-232 Configuration

*RS422 - Main Port {P1}

1	CTS - output	6	CTS+ output
2	Transmit Data - output	7	Transmit+ output
3	Receive Data - input	8	Receive+ input
4	RTS - input	9	RTS+ input
5	Ground

*RS422 - Auxiliary Port {P2}

1	CTS - input	6	CTS+ input
2	Receive Data - input	7	Receive+ input
3	Transmit Data - output	8	Transmit+ output
4	RTS - output	9	RTS+ output
5	Ground

*Default configuration is RS232. RS422 configuration available from factory.

RS-232 Configuration

Configure your PC for 8-bit data, one start-bit, one stop-bit, full duplex and no parity. The baud rate for the RS232 communication can be selected by setting the proper switch configuration on the front panel according to the table below.

Baud Rate Selection

SWITCH SETTINGS
9600	19.2	3800	BAUD RATE
ON	ON	OFF	1200
ON	OFF	OFF	9600
OFF	ON	OFF	19200
OFF	OFF	ON	38400
OFF	ON	ON	115200

Handshaking Modes

The RS232 main port can be configured for hardware and software handshaking. For Hardware Handshaking, set the HSHK switch to ON. In this mode, the RTS and CTS lines are used. The CTS line will go high whenever the DMC-2x00 is not ready to receive additional characters. The RTS line will inhibit the DMC-2x00 from sending additional characters. Note, the RTS line goes high for inhibit. The handshake should be turned on to ensure proper communication especially at higher baud rates.

Software handshaking can be enabled by setting the XON switch to ON. In this mode, the controller will generate / accept XON and XOFF characters to control the flow of characters to / from the terminal. The controller uses the hex value $13 for the XOFF character and the hex value $11 for the XON character.

The auxiliary port of the DMC-2x00 can be configured either as a general port or for the daisy-chain (DMC-2000 only). When configured as a general port, the port can be commanded to send ASCII messages to another DMC-2x00 controller or to a display terminal or panel.

DMC-2X00 Chapter 4 Communication y 3