Bit Bit value=0 Bit value=1 Bit value
00 Reference value External selection lsb 0
C
01 Reference value External selection msb 0
02 DC brake Ramp 1
03 Coasting Enable 1
04 Quick stop Ramp 1
7
05 Freeze output Ramp enable 1
06 Ramp stop Start 1
07 No function Reset 0
08 No function Jog 0
4
09 Ramp 1 Ramp 2 0
10 Data not valid Valid 1
11 No function Relay 01 active 0
12 No function Relay 02 active 0
0
13 Parameter set-up Selection lsb 0
14 Parameter set-up Selection msb 0
15 No function Reversing 0
Function active
Function inactive
Table 7.4 Active Bit Functions for Control Word Telegram using PPO Type
7.3 Example 3: Status Word Telegram using PPO Type
This example shows how the control word telegram relates to the PLC and the frequency converter, using FC control profile.
The control word telegram is sent from the PLC to the frequency converter. PPO type 3 is used in the example to
demonstrate the full range of modules. All the values shown are arbitrary, and are provided for demonstration purposes
only.
Table 7.5 indicates the bits contained within the status word, and how they are presented as process data in PPO type 3 for
this example.
PCV PCD
1 2 3 4 5 6
PCA IND PVA CTW MRV PCD PCD PCD PCD
0F 07 20 00
PIW: 256 258 260 262 264 266 268 270 272 274
master slave STW MAV
Bit no.: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 1 0 0 0 1 1 1 1 1 0 0
0 4 7 C
Table 7.5 Example: Status Word Telegram using PPO Type
Table 7.6 indicates the bit functions, and the corresponding bit values which are active for this example.
Application Examples
Programming Guide
MG37G102 Danfoss A/S © Rev. 05/2014 All rights reserved. 45
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