Burkert Type 8717 - Manual (Page 32)

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PROFIBUS DP Start-up
4.5. explanation of variables used in cyclic data traffic
process data explanation identifier
Actual value Actual value
(1 word = 2 bytes)
Value range 0 – 1000 41,40,00 (HEX); PdI
Set-point Set-point value
(1 word = 2 bytes)
Value range 0 – 1000 41,40,01 (HEX); PdI
81,40,01 (HEX); PdO
Active gas
(used gas type) whose calibration curve is used for control:
gas 1 or gas 2
(1 word = 2 bytes)
Value range 0 – 1 41,40,02 (HEX); PdI
Nominal flow Gas 1 Nominal flow in Nl/min of
calibration for gas 1
float = 4 bytes 41,83,03 (HEX); PdI
Nominal flow Gas 2 Nominal flow in Nl/min of
calibration for gas 2
float = 4 bytes 41,83,04 (HEX); PdI
Status limits Read only
Bit field for states of device-internal threshold value:
(1 word = 2 bytes)
see “9.1. description of bit fields”
min. value 0, max. value 65535 41,40,05 (HEX); PdI
Status errors Read only
Bit field for device errors that are present.
(1 word = 2 bytes)
see “9.1. description of bit fields”
min. value 0, max. value 65535 41,40,06 (HEX); PdI
Status others Read only
Bit field for current states in the controller.
(1 word = 2 bytes)
see “9.1. description of bit fields”
min. value 0, max. value 65535 41,40,07 (HEX); PdI
Status LEds Read only
Bit field for communication states.
(1 word = 2 bytes)
see “9.1. description of bit fields”
min. value 0, max. value 65535 41,40,08 (HEX); PdI
Status binary outputs Reserved bit field
(1 word = 2 bytes)
see “9.1. description of bit fields” 41,40,09 (HEX) PdI
default values via bus Bit field for states of LEds and binary outputs as they can
be assigned by the bus. To do this, the corresponding
functions must be configured in the device with the
PC program.
(1 word = 2 bytes)
see “9.1. description of bit fields” 41,40,0B (HEX); PdI
81,40,0B (HEX); PdO
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