Hamilton Electronics EPHUM011 System Commands, Recall Sensor’s Factory Settings, Hello World

pH ARC Sensors Modbus RTU Programmer’s Manual (EPHUM011)

Command: Info user			Modbus address: 1568	Length: 8	Type: 16	Write
Parameter:	Text
Format:	Character
Value:	Hello World
Figure 2.9.3.2:	Example to write 16	ASCII characters to register 1568 with operator A or S.
Command: Info user			Modbus address: 1568	Length: 8	Type: 3	Read
Parameter:	Text
Format:	Character
Value:	Hello World

Figure 2.9.3.3: Example to read the register 1568 (written in figure 2.9.1.6).

2.10 System Commands

2.10.1 Recall Sensor’s Factory Settings

Using register 8192 you can recall the sensor manufacturer values (interfaces, calibration data and passwords), except the SIP and CIP data which remain unchanged. By sending the recall value “732255”, all configuration values will be set to default.

Start	Number of		Reg1 / Reg2		Modbus		Read	Write
register	registers				function code		access	access
8192	2		Recall by value 732255		16		none	S
Figure 2.10.1.1: Definition of register 8192.
Command: Recall				Modbus address: 8192	Length: 2	Type: 16		Write
Parameter:		Recall
Format:		Decimal
Value:		732255

Figure 2.10.1.2: Example to write the restore command.

3	Abbreviations
AO	Analog Output Interface
CP	Calibration Point
ECS	Electrochemical Sensor Interface
PMC	Primary Measurement Channel
SMC	Secondary Measurement Channel

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