Advantech RS-100-RT Manual de usuario descargar pdf (Pagina 137)

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101

Chapter 4 Command Set 4-53

Twos complement % of Span Engineering units

under-limit 0000 -0000 -0000

over-limit FFFF +9999 +9999

#AA

Example command: #DE(cr)

response: >FF5D(cr)

The analog input module at address DEh has an input value of

FF5D. (The configured data format of the analog input module

is twos complement)

NOTICE: When modules measure Thermocouple or RTD input values that

are outside their configured range they will send data that implies input

out of bounds. The next table shows the values that the modules will

return, depending on the configured data format and if the input value falls

under or exceeds the configured range.

Only when modules are configured for Thermocouple or RTD will

this

“input out of bounds” warning occur. When analog input modules

measure voltage or current that falls outside the configured range, they

will return the actual measured input!

In the next example the target module is configured for an input range of

T/C type J (Input range: 0 - 760° C) and for a data format in engineering

units. The module measures an input value of 820° C.

Example command: #D1(cr)

response: >+9999(cr)

By returning a high value, +9999, the module at address D1h

indicates that the measured input value exceeds the configured

range.

4011, 4011D, 4012, 4013, 4015, 4016,

4017, 4017+, 4018, 4018+, 4019

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 397 398

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Advantech RS-100-RT Manual de usuario Pagina 137

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