VBP-HH1-V3.0*
Operation
2013-06
21
All other complex communication protocols are not supported and are handled by
the addressing device as standard AS-Interface slaves.
Safety Code (AS-Interface Safety At Work)
As soon as both input channels of an AS-Interface safety slave are active, a cyclic
sequence of 8 x 4 bits is transmitted to the addressing device. These data are
designated as the Safety-Code. The Safety-Code is defined as follows:
The Safety-Code always starts with the data packet 00zz. Thus this denotes the
start of a new safety code. The two y-bits of the following data packets are never
simultaneously 0. The two x-bits of the following data packets are 00.
Read Safety-Code (AS-Interface Safety at Work)
Reading Safety-Codes is supported by this addressing device. To be able to read
Safety-Codes, proceed as follows:
1. Make sure that the two input channels of the AS-Interface safety slaves are ac-
tive.
2. Press the button.
Each time the button is pressed, the hexadecimal value of the respective
data packet of the Safety-Code, beginning with the first data packet 00zz, is
shown in the address and data display.
Cycle Structure of the data packet
1 00zz
2 yyxx
3 yyxx
4 yyxx
5 yyxx
6 yyxx
7 yyxx
8 yyxx
ADR
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