Omega SP-006, Руководство пользователя

Страница: 28 / 32

28 | M 5 7 7 9
6.5.1 Scaling Minimum / Maximum Values
When Input Mapping is used the user may specify the input signal range through the Input Minimum and
Input Maximum parameters. There is one pair of registers for each of the 4 possible outputs.
Sensor Name
Modbus
Address
I2C
Address
Size Description
0
Output 0 Low Scale 0xf1f0 0x03e0 float Sets lower input range
Output 0 High Scale 0xf1f2 0x03e4 float Sets upper input range
1
Output 1 Low Scale 0xf1f4 0x03e8 float Sets lower input range
Output 1 High Scale 0xf1f6 0x03ec float Sets upper input range
2
Output 2 Low Scale 0xf1f8 0x03f0 float Sets lower input range
Output 2 High Scale 0xf1fa 0x03f4 float Sets upper input range
3
Output 3 Low Scale 0xf1fc 0x03f8 float Sets lower input range
Output 3 High Scale 0xf1f2e 0x03fc float Sets upper input range
When either the Low Scale or High Scale value changes an internal calculation is performed to calculate the
linear transformation to be applied to the sensor reading.
6.5.2 Output Values
Outputs use float values which represent the percentage of full scale. If the output is not mapped, the value
written (0 – 100%) is identical to the value that is read back.
If the output is mapped, the scaling values are used to transform the minimum input value to 0% and the
maximum input value to 100%.
Output Name
Modbus
Address
I2C
Address
Size Description
0 Output 0 Value 0xf078 0x00f0 float Percent of full-scale value (0-100%)
1 Output 1 Value 0xf07a 0x00f4 float Percent of full-scale value (0-100%)
2 Output 2 Value 0xf07c 0x00f8 float Percent of full-scale value (0-100%)
3 Output 3 Value 0xf07e 0x00fc float Percent of full-scale value (0-100%)
6.5.3 Output Names
Each output has a name. The default names for the outputs are
Output_0
through
Output_3
. The default
names may be overwritten, such as ‘Stack_Lite’ or ‘Control_Valve’. Names are restricted to 16 characters.
Output Name
Modbus
Address
I2C
Address
Size Description
0 Output 0 Name 0xf078 0xf720 char[16] Defaults to Output_0
1 Output 1 Name 0xf07a 0xf728 char[16] Defaults to
Output_1
2 Output 2 Name 0xf07c 0xf730 char[16] Defaults to
Output_2
3 Output 3 Name 0xf07e 0xf738 char[16] Defaults to
Output_3
The Output names are retained until a factory reset occurs.
It is strongly recommended that:
1. Spaces within the name should be replaced with the ‘_’ character.
2.
All output names on a particular device are unique – if duplicate functions are supported append a ‘_x’
string, where x represents the instance. For example, Stack_Lite_1 and Stack_Lite_2 could be used if 2
stack lights are being connected.