B.2.2 ci commands – Festo Электромотор MTR-DCI User Manual

Page 265

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B. Supplementary information

B-59

Festo P.BE-MTR-DCI-PB-EN en 1209a

B.2.2

CI commands

Caution
Loss of data.

The Command Interpreter (CI) contains commands which
reorganise or delete parts of the memory. Existing data is
destroyed in this process:

It is preferable to use the FCT or the control panel for
commissioning and parameterising.

Use the CI commands only in special cases which require
direct access to the controller.

Use CI commands only if you already know their effects
and if they are permitted for your MTR-DCI.

WRITE (W)

Write commands (W) transfer a value in the specified format
to the MTR-DCI. As a response, write commands will be re-
flected back exactly character by character from the MTR-DCI.
A checksum <PS> will be inserted in front of the <CR>.

READ (R)

Read commands (R) transfer a value from the MTR-DCI. The
response contains the value read. A checksum <PS> will be
inserted in front of the <CR>.

All commands are entered as a character sequence without
any empty spaces. A hex character is a “char” character in
hex format.

Acc

1)

Command

Response

W

=IIIISS:<value><CR>

2)

=IIIISS:<value> <PS> <CR>

R

?IIIISS<CR>

2)

=IIIISS:<value> <PS> <CR>

1)

Access: W = write, R = read

2) With checksum checking enabled (object 20F3h):

W: =IIIISS:<value><PS><CR> R: ?IIIISS<PS><CR>

Tab. B/10: Syntax of a CI command/response

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