Commissioning
52 ATM60-Cxx 03/2007
13. Commissioning
Before the encoder is switched on, the following settings must have been made:
· Node ID
· Baud rate
· Bus terminating resistors
The procedure for these settings is described in the chapter on “Connecting the encoder”.
13.1 Switch on encoder
After applying the supply voltage, the encoder runs through an initialization phase and then changes
automatically to the “pre-operational” state.
Within the initialization phase, data are loaded from the Eeprom into the RAM (non-volatile memory) of the
encoder, and the objects in the object directory are initialized.
If no data have been saved to the Eeprom, default values are stored in the Eeprom. If data have been saved
to the Eeprom, then the objects in the object directory are set to the saved values.
In the “pre-operational” state, only SDO connections are active. The PDO connections are inactive and are
activated in the “operational” state.
In order to change from the “pre-operational” state to the “operational” state, it is merely necessary for the
“start remote node” command to be transmitted to the encoder. If no configuration of objects in the encoder is
needed, then the encoder can be set ready to operate by transmitting this command.
“Start remote node” command:
COB-ID Command Node ID
Data
11 bit Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
0
1
hex
Node ID of the
encoder
00
hex
00
hex
10
hex
00
hex
00
hex
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