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Indicate identifier in the display „a“ (41h), Extended identifier command „ax“ (41h, 58h) – Baumer N 152 User Manual

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N 152

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4.4.1. Assigning device identifiers in the network „A“ (41h)

This command is creating an automated process assigning the device identifier in successive order to every
single SPA upon commissioning of the system. The first identifier to be assigned is broadcasted to all networked
SPAs as follows:

SOH

Adr

Cmd identifier = 01

EOT

CRC

Transmission

01h

83h

41h

30h

31h

04h

B4h

All SPAs now show the identifier just transmitted and that is to be assigned in the upper display. The bottom line
indicates the device-specific identifier.To make the SPA adopt the new identifier, the shaft must be turned by half
at least (direction does not matter). The identifier is now adopted and indicated in the bottom line of the display
(as new device-specific identifier). Both identifiers are now identical. As soon as the shaft is in idle position again
and after having elapsed 3 seconds, the SPA will transmit the following command „B“ (42h) as confirmation to
master:

SOH

Adr

Cmd identifier = 01

EOT

CRC

Transmission

to master

01h

21h

42h

30h

31h

04h

86h

The Master can now transmit command „A“ with the next identifier to be assigned as previously described.
This way, the different (successive) identifiers are automatically assigned to all networked SPAs, one after the
other.

Important: Confirmatory command „B“ transmitted by SPA to master will be repeated after 3 seconds provided
the master has not previously transmitted another „A“ command.

Indicate identifier in the display „A“ (41h)

This command less parameters as a broadcast command (address/Identifier=99) will make every networked
SPA indicate the device-specific identifier in the bottom line of the display. The upper line is blind.
This command is a designated broadcast command.

SOH

Adr

Cmd

EOT

CRC

Transmission

01h

83h

41h

04h

80h

Response

Not confirmed

SPA remains in this mode until being switched off and on again or until transmission of another command
except „A“, „R“, „t“ or „u“.

If this command is transmitted to a valid device identifier (except 99) without any parameters, the respective SPA
will return to standard operating mode and reply the actual device identifier.

SOH

Adr

Cmd

EOT

CRC

Transmission

01h

21h

41h

04h

0Ah

SOH

Adr

Cmd Identifier =01 EOT

CRC

Response

01h

21h

41h

30h

31h

04h

9Eh


Extended identifier command „AX“ (41h, 58h)

This extended command is utilized to address individual SPAs in the bus network in a similar way as described
above. By broadcast command the identifier to be assigned is transmitted to all networked SPAs as follows:

SOH

Adr

Cmd Cmd2 Identifier = 01

EOT

CRC

Transmission

01h

83h

41h

58h

30h

31h

04h

40h

Similar to the standard command all SPAs now indicate the identifier just transmitted which is to be assigned in
the upper display. Adopting the identifier is in the same way. However, contrary to the above there is not any
acknowledgement „B“ in reply. Checking whether the new identifier has been adopted is up to master, for
example utilizing command “R” (read actual value). The R-command with the corresponding identifier is
transmitted to the SPA. If the addressed SPA confirms that the assignment was successful, the master can
proceed with next identifier. Regarding other commands the display of the respective SPA switches to standard
operation.