Toshiba PROFIBUS-DP PBDP-110 User Manual

Page 22

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21

Command Word

Bit-mapped drive control command word (drive parameter number FA00). This is the
location where run/stop, etc. commands are written. An example command word can
be found in Table 1. Because the format of this command word depends on the drive
manufacturer’s specifications, please refer to your specific drive’s Serial
Communications Manual
for the exact structure of this word.

Using the example command word in Table 1, some representative command words
that can be used to control your drive via the Profibus network are:

0xC400 ..........Profibus command valid, Profibus frequency valid, drive run forward
0xC600 ..........Profibus command valid, Profibus frequency valid, drive run reverse
0xC000 ..........Profibus command valid, Profibus frequency valid, drive stop
0xE000 ..........Profibus command valid, Profibus frequency valid, reset drive fault

Although the above examples all show Profibus command and frequency valid, input
(status) data can always be monitored from the network regardless of the settings of
bits 14 and 15 in the command word.

Table 1 : Example Command Word Format (S9 Drive)

Bit Function

0

1

15 Command

source

Local

Network

14 Frequency command source

Local

Network

13 Fault

reset

N/A

Reset

12 Emergency OFF command

N/A

EOFF

11 Coast stop command

N/A

Coast stop

10 Run / stop command

Stop

Run

9

Forward / reverse selection

Forward

Reverse

H

ig

h B

yte

8 Jog

command

N/A

Jog

7

DC injection braking

N/A

DC injection cmd.

6

Accel / decel #1/#2 selection

#1

#2

5 Reserved

--

--

4 Reserved

--

--

3

Preset speed 4

OFF

ON

2

Preset speed 3

OFF

ON

1

Preset speed 2

OFF

ON

Low Byt

e

0

Preset speed 1

OFF

ON

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