3 e.g.: status word network using ppo type – GE Industrial Solutions AF-600 FP Profibus DP User Manual

Page 71

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7.3 E.g.: Status Word Network using PPO Type

This example shows how the control word network relates to the PLC and the frequency converter, using GE Drive Control Profile.

The control word network is sent from the PLC to the frequency converter. PPO Type 3 is used in the example in order to demonstrate the full range of modules.
All the values shown are arbitrary, and are provided for the purposes of demonstration only.

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

The table above indicates the bits contained within the statusword, and how they are presented as process data in PPO type 3 for this example.

The following table indicates which bit functions, and which corresponding bit values are active for this example.

Bit

Bit value = 0

Bit value = 1

Bit value

00

Control not ready

Control ready

1

7

01

Drive not ready

Drive ready

1

02

Coasting

Enable

1

03

No error

Trip

0

04

No error

Error (no trip)

0

0

05

Reserved

-

0

06

No error

Triplock

0

07

No warning

Warning

0

08

Speed reference

Speed = reference

1

F

09

Local operation

Network control

1

10

Outside frequency range

Within frequency range

1

11

No operation

In operation

1

12

Drive ok

Stopped, autostart

0

0

13

Voltage ok

Voltage exceeded

0

14

Torque ok

Torque exceeded

0

15

Timers ok

Timers exceeded

0

Function active

Function inactive

AF-650 GP/AF-600 FP Profibus DP Operating Instructions

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