Endress+Hauser Proline Promag H 300 - Page 80

System integration Proline Promag H 300 PROFINET
80 Endress+Hauser
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 Status (meaning)
16 Flow override
• 0 (disable device function)
• 1 (enable device function)
18…20 Relay output
Relay output value:
• 0
• 1
Data structure
Output data of Digital Output
Byte 1 Byte 2
Digital Output Status
1) 2)
1) Status coding →  81
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 device to the automation system.
The Heartbeat Verification module receives discrete output data from the automation
system and transmits discrete input data from the measuring device to the automation
system.
The discrete output value is provided by the automation system in order to start 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 device to transmit 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
discrete input value is depicted in the first byte. The second byte contains status
information pertaining to the input value.
Only available with the Heartbeat Verification application package.
Assigned device functions
Slot Device function Bit Verification status
17
Status verification
(input data)
0 Verification has not been performed
1 Verification has failed
2 Currently performing verification
3 Verification terminated
Verification result
Bit Verification result