EUCHNER HBLS 072725 - Handbuch (Seite 28)

EUCHNER Pendant station HBLS 072725
067018-08-01/06 Subject to technical modifications page 6 / 22
4. Power On / Initialising
Directly after Power On, the HBLS is in a non active state and a self test is executed.
During this time, the serial data interface is disabled.
The display shows the actual software version, built in.
Any changes of push buttons and selector switches are ignored.
First of all, the HBLS has to be initialised by the control.
This has to be done by requesting the actual states of the buttons and the selector switches,
by performing the function status check.
5. Acknowledge Push-button and Selector Switch Status change
Every status change of push-buttons and selector switches will be transmitted to the PLC.
When pushing two or more buttons at the same time, only the first will be transmitted. If one
button remains pushed, another button will be ignored, and the status will not be changed.
5.1 Push-button Status change
PLC
HBLS
Byte
1 STX (02H)
Byte 1 DLE
Byte
2 Push-button byte (see table)
Byte 3 DLE
Byte 4 ETX (03H)
Byte 5 BCC
Byte 2 DLE