Example 3: Status Word Telegram Using Ppo Type - Danfoss VLT PROFIBUS DP MCA 101 Programming Manual

Application Examples
Table 7.4 indicates the bit functions and corresponding bit values which are active for this example.
Bit
00
01
02
03
04
05
06
07
08
09
10
11
12
13
7 7
14
15
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 PLC sends the control word telegram to the frequency converter. In the example, PPO type 3 demonstrates 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.
PIW 256
Bit 15
number
0
Table 7.5 Example: Status Word Telegram using PPO Type
50
VLT
Bit value=0
Reference value
Reference value
DC brake
Coasting
Quick stop
Freeze output
Ramp stop
No function
No function
Ramp 1
Data not valid
No function
No function
Parameter set-up
Parameter set-up
No function
PCV
PCA IND
258 260
master slave
14 13 12 11
0 0 0 0
0
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PROFIBUS DP MCA 101
Bit value=1
External selection lsb
External selection msb
Ramp
Enable
Ramp
Ramp enable
Start
Reset
Jog
Ramp 2
Valid
Relay 01 active
Relay 02 active
Selection lsb
Selection msb
Reversing
1
PVA CTW
0F 07
262 264
STW
10 9 8 7 6
1 0 0 0 1
4
Bit value
0
0
1
1
1
1
1
0
0
0
1
0
0
0
0
0
PCD
2 3 4
MRV PCD PCD
20 00
266 268 270
MAV
5 4 3 2 1 0
1 1 1 1 0 0
7 C
C
7
4
0
5 6
PCD PCD
272 274
MG37G202