Endress+Hauser Smartec S CLD132, Руководство по эксплуатации

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System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
18 Hauser
5.2 Cyclical data exchange (Data_Exchange)
The Smartec S provides the following modules as input data (data from transmitter to PLC)
for the cyclic data telegram:
Input data (data from transmitter to PLC)
• Main Process Value
This byte transfers the main measured value.
• Temperature
This byte transfers the temperature.
Structure of the input data (Smartec S to PLC)
The input data is transferred from the transmitter in the following structure:
Outut data (data from PLC to transmitter)
• MRS (Measuring Range Switch)
This byte transfers the external hold and the parameter set switch from the PLC to the
transmitter.
Structure of the output data (PLC to Smartec S)
The output data of the PLC for device control have the following structure:
Index
Input
Data Data Access Data format Configuration data
0...4 Analog Input Block 1
"Main Process Value" read Measured value (32-bit floating point
number; IEEE-754)
Status byte (0x80) = Ok 0x42, 0x84, 0x08, 0x05 or
0x42, 0x84, 0x81, 0x81 or
0x94
5...9 Analog Input Block 2
"Temperature" read Measured value (32-bit floating point
number; IEEE-754)
Status byte (0x80) = Ok 0x42, 0x84, 0x08, 0x05 or
0x42, 0x84, 0x81, 0x81 or
0x94
Index
Input
Data Data Access Data format Configuration data
0 MRS write Byte
Status byte (0x80) = Ok 0x42, 0x84, 0x08, 0x05 or
0x42, 0x84, 0x81, 0x81 or
0x94