Baumer N 141 User Manual download pdf (Page 16)

N 141

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Indicate identifier in the display, command „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 desginated broadcast command.

SOH Adr Cmd EOT CRC

Transmission

01h 83h 41h 04h 80h

Response Not confirmed

The SPA remains in this mode until being switched off and on again or until transmission of another command.

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

This extended command is utilized for addressing individual multicon devices in the bus network in a similar

way as described above. By broadcast command the identifier to be assigned is transmitted to all networked

devices as follows:

SOH Adr Cmd Sub identifier = 01 EOT CRC

Transmission

01h 83h 41h 58h

30h 31h

04h 40h

Response Not confirmed

Similar to standard command all devices now show the identifier just transmitted and that is to be assigned in

the upper line. Entering the identifier is proceeded the same way. However contrary to the above no

confirmatory command „B“ will be replied. It is up to master to check whether the identifier has been accepted,

for example by command “R” (read current value). The R-command is transmitted under the corresponding

identifier to the position display. If the addressed SPA is responding the assignment was successful and the

master can proceed with the next identifier. Regarding other commands the display of the respective device

switches to standard operation.

4.5. Specific commands

Command

code

Data

amount in

bytes

read write Broad-

cast

Save in

EEPROM

Significance

K (4Bh) - - X X X Specific command: Profile reset (delete)

Q (51h) 1 - X X X Specific command: N 141 reset

X (58h) 2 / 4 / 8 X - - - Specific commands

4.5.1. SPA profile reset, command „K“ (4Bh)

This command is deleting all previously programmed profiles.

Example 1: Profile reset at specific N 141

SOH Adr Cmd Data EOT CRC

Transmission

01h 20h 4Bh

7Fh

04h C6h

SOH Adr Data EOT CRC

Response

01h 20h

6Fh

04h 52h Device replies by standard response ‚o’ (6Fh) = OK

Example 2: Profile reset at all N 141 by broadcast command (Identifier=99)

SOH Adr Cmd Data EOT CRC

Transmission

01h 83h 4Bh

7Fh

04h DBh

Response Not confirmed

Important: After profile reset all profile data are set to auf FFFFFFhex , the current profile number to FFhex.

The display now shows 6 dashes instead of the target.

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