Process Data - Danfoss VLT Midi Drive FC 280 Programming Manual

Control
Standard telegram
1
Danfoss telegram
PCV
PPO 1
PCV
PPO 2
PPO 3
PPO 4
PCV
PPO 5
PPO 6
PPO 7
PPO 8
Illustration 4.1 Available PPO Types

4.2 Process Data

Use the process data part of the PPO to control and
monitor the frequency converter via the PROFIBUS.
4.2.1 Process Control Data
Process control data (PCD) is the process data sent from
the PLC to the frequency converter.
Master/slave
1 2
CTW MRV PCD
Table 4.1 Process Control Data
PCD 1 contains a 16-bit control word, and each bit controls
a specific function of the frequency converter. See
chapter 4.3 Control Profile.
PCD 2 contains a 16-bit speed setpoint in percentage
format. See chapter 4.2.3 Reference Handling.
MG07F102
Programming Guide
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
CTW/STW REF/MAV
3 ....... 10
....... PCD
PCD write
Danfoss A/S © 05/2016 All rights reserved.
(The old PPO type 3)
PCD 2 PCD 3 PCD 4 PCD 5
Read/
Read/ Read/ Read/
Write
Write Write Write
PCD 2 PCD 3 PCD 4 PCD 5
Read/ Read/ Read/ Read/
Write
Write Write Write
PCD 2 PCD 3 PCD 4 PCD 5
Read/ Read/ Read/ Read/
Write
Write Write Write
PCD 2 PCD 3
Read/ Read/
Write Write
PCD 2 PCD 3 PCD 4 PCD 5
Read/ Read/ Read/ Read/
Write Write Write Write
PCD 2 PCD 3 PCD 4 PCD 5
Read/
Read/ Read/ Read/
Write Write Write Write
The settings in parameter 9-15 PCD Write Configuration and
parameter 9-16 PCD Read Configuration define the content
of PCD 3 to PCD 10.
4.2.2 Process Status Data
Process status data is the process data sent from the
frequency converter and contains information about the
current state.
Slave/master
1 2
STW MAV
Table 4.2 Process Status Data
PCD 1 contains a 16-bit status word, and each bit contains
information regarding a possible state of the frequency
converter.
PCD 2 contains each default value of the frequency
converter's current speed in percentage format (see
chapter 4.2.3 Reference Handling). PCD 2 can be configured
to contain other process signals.
PCD 7 PCD 8 PCD 9
PCD 6
Read/ Read/ Read/
Read/
Write Write Write
Write
PCD 6 PCD 7
Read/ Read/
Write
Write
PCD 6 PCD 7 PCD 8 PCD 9
Read/
Read/ Read/ Read/
Write Write Write
Write
3 ...... 10
PCD ...... PCD
PCD read
4 4
13