Endress+Hauser Proline Promass E 500 - Page 103

Proline Promass E 500 PROFIBUS PA System integration
Endress+Hauser 103
Factory setting
Function block Factory setting
DI 1 Empty pipe detection
DI 2 Low flow cut off
Data structure
Input data of Discrete Input
Byte 1 Byte 2
Discrete Status
DO module (Discrete Output)
Transmit discrete output values from the PROFIBUS master (class 1) to the measuring
device. Discrete output values are used by the PROFIBUS master (class 1) to enable and
disable device functions.
The DO module cyclically transmits the discrete output value, including the status, to the
measuring device. The discrete output value is depicted in the first byte. The second byte
contains standardized status information pertaining to the output value.
Five Discrete Output blocks are available (slot 17 to 21).
Assigned device functions
A device function is permanently assigned to the individual Discrete Output blocks.
Function block Device function Values: control (meaning)
DO 1 Flow override
• 0 (disable device function)
• 1 (enable device function)
DO 2 Zero adjustment
DO 3 Start verification
1)
DO 4 Relay output
• 0 (non-conductive)
• 1 (conductive)
DO 5 Concentration
2)
Assignment of medium type
(see the following table)
1) Only available with the Heartbeat Verification application package
2) Only available with the Concentration application package
Assignment of medium type: function block DO 5
101 Fructose in water
102 Glucose in water
104 Hydrogen peroxide in water
105 Sucrose in water
106 Invert sugar in water
107 Nitric acid
108 Phosphoric acid
109 Potassium hydroxide
100 Off
110 Sodium hydroxide
111 Ethanol in water