Cable Electronics HSW44C instruction manual RS-232 Commands, Check sum, 0x01 ~ 0xFF

RS-232 Commands

RS-232 transmission Format

Baud rate: 9600

Data bit: 8

Parity: None

Set Command

Command Code		Response	Description
Data	Check SUM	ACK	SET
0x08 0x4d 0x41 0x51 0x44 0x05 *0x01~0xff	0x31~0x2f	0xaa	SET MA-5144 Device ID
0x0c 0x4d 0x41 0x51 0x44	0x0c+…+port4	0xaa	Set MA-5144 Source
Device_Id 0x02 port1 port2 port3 port4			Mapping of Output Port

Status Command

Command Code			Response		Description
Data		Check	Get Status	Check SUM	Status
		SUM
0x05	0x4d 0x4f 0x44	0xe5	0xaa 0x06 0x4d 0x41	0x29	Get Device Type
			0x51 0x44		(MA-5144)
0x07	0x4d 0x41 0x53 0x57	0x43	0xaa 0x3 0x01~0xff	0x04~0x02	Get Device ID
0x04
0x08	0x4d 0x41 0x51 0x44	0x2e~0x2c	0xaa 0x06 port1 port2	0x06 +	Get Source Mapping of
*0x01~0xFF 0x01			port3 port4	port1~port4	Output Port
0x08	0x4d 0x41 0x51 0x44	0x30~0x2e	0xaa 0x08 0x56 0x33	0x81	Software Version V.3.01a
*0x01~0xFF 0x04			0x2e 0x30 0x31 0x61

Check sum:

Check sum = (Data value sum)%256 The check sum of response is not included 0xaa.

0x01 ~ 0xFF:

This data is device ID. The Device ID saved in the device, if the device ID of the controlled device is 0xff , the device will ignore its own ID and carry out the commands.

16