Hamilton Electronics EPHUM011 manual Configuration of the Measurement, Available Parameters

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

2.6Configuration of the Measurement

This chapter describes the configuration of PMC1 and PMC6 by means of measurement parameters (PA).

2.6.1 Available Parameters

In register 3072, all available parameters (PA) are given.

Start	Number of		Reg1 / Reg2				Modbus		Read	Write
register	registers		(bitwise defined)				function code		access	access
3072	2		Available parameters (see figure 2.6.1.2)				3, 4		U/A/S	none
Figure 2.6.1.1: Definition of register 3072.
Bit #		Hex value		Description		Definition in pH ARC Sensors
0 (LSB)		0x0001		PA1		not available
						not available
7		0x0080		PA8		not available
8		0x0100		PA9		Moving average
9		0x0200		PA10		not available
10		0x0400		PA11		not available
11		0x0800		PA12		Moving average R
						not available
15 (MSB)		0x8000		PA16		not available
Figure 2.6.1.2:		Bitwise definition		of parameters PA1 to PA16, valid for pH ARC Sensors
Command: Available parameters					Modbus address: 3072		Length: 2	Type: 3			Read
Parameter:		Measurement
		parameters
Format:		Hex
Value:		0x0900

Figure 2.6.1.3: Example to read the available parameters. The value 0x0900 corresponds to 0x0100 (PA9) + 0x0800 (PA12). Parameter 9 and 12 are available.

Genereal note:

PA1 to PA8 use FLOAT as data format for its values

PA9 to PA16 use UNSIGNED INT as data format for its values.

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