Endress+Hauser Proline Promass A 100 PROFINET Operating Instructions Manual page 57

Proline Promass A 100 PROFINET
Endress+Hauser
If the status is GOOD or UNCERTAIN, the compensation values transmitted by the
automation system are used. If the status is BAD, the failsafe mode is activated for the use
of the compensation values.
Parameters are available per compensation value to define the failsafe mode: Expert
→ Sensor → External compensation
Fail safe type parameter
• Fail safe value option: The value defined in the Fail safe value parameter is used.
• Fallback value option: The last valid value is used.
• Off option: The failsafe mode is disabled.
Fail safe value parameter
Use this parameter to enter the compensation value which is used if the Fail safe value
option is selected in the Fail safe type parameter.
Digital Output module
Transmit digital output values from the automation system to the measuring device.
Digital output values are used by the automation system to enable and disable device
functions.
Digital output values cyclically transmit discrete output values, including the status, from
the automation system to the measuring device. The discrete output value is transmitted
in the first byte. The second byte contains status information pertaining to the output
value.
Assigned device functions
Slot Device function
21 Flow override
22 Zero adjust
24 to 26 Relay output
Data structure
Output data of Digital Output
Byte 1 Byte 2
Digital Output Status
1) Status coding →  59
2) If the status is BAD, the control variable is not adopted.
Heartbeat Verification module
Receive discrete output values from the automation system and transmit discrete input
values from the measuring instrument to the automation system.
The Heartbeat Verification module receives discrete output data from the automation
system and transmits discrete input data from the measuring instrument to the
automation system.
The discrete output value is provided by the automation system to start a Heartbeat
Verification. The discrete input value is depicted in the first byte. The second byte contains
status information pertaining to the input value.
The discrete input value is used by the measuring instrument to send the status of the
Heartbeat Verification device functions to the automation system. The module cyclically
transmits the discrete input value, along with the status, to the automation system. The
Status (meaning)
• 0 (disable device function)
• 1 (enable device function)
Relay output value:
• 0
• 1
1) 2)
System integration
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