Bosch Rexroth IndraDrive MPH-02 Functional Description page 672

Firmware for drive controllers

Table of Contents

Handling, Diagnostic and Service Functions

Fig. 10-50: Command acknowledgment (data status)

Completing a Command

A command is completed as follows:

IDN of the command,7,w,0 (Carriage Return)

Example of Application (Changing the Assign List for the

Signal Status Word)

Assumption: Several drives are connected to a PLC via an RS485

interface. The address of the drive we consider is "01".

Establishing the communication with the respective axis

BCD: 01 (CR) Command for switching to drive A01:>

echo of the connected drive. All other drives are passive.

The drive does not send an echo after each character, but it is

only after having received the "CR" that the drive returns the

complete sequence that was input.

Writing the assign list for the signal status word to the drive

The assignment of the relevant bits for the signal status word (S-0-0144)

is stored in parameter S-0-0328, Assign list signal status word in the

form of a list. In order to change one or more values in this list, it is

necessary to always write all relevant values of this list. That is to say if

four elements are used, it is necessary to write all 4 bits even if only one

element (bit) is to be changed.

MPH-02, MPB-02, MPD-02

0 : command not set in the

1 : command set in the drive

0 : command execution interrupted

in the drive

1 : command execution enabled

in the drive

0 : command correctly

1 : command not yet executed

0 : no error

execution of command

0 : operating data is valid

1 : operating data is invalid

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