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VIPA System SLIO
OPTION16: Line assign-
ment
Parameters
Description
00h
None
(Default)
No pre-assignment of the receiving lines.
This setting only makes sense with bus-capable special drivers.
01h
Signal R(A) 5V (Break evaluation)
Signal R(B) 0V
With this pre-assignment break detection is with RS422 possible
at full-duplex operation.
02h
Signal R(A) 0V
Signal R(B) 5V
This pre-assignment corresponds to the idle state (no sender is
activated) at half-duplex operation with RS485. Wire-break recog-
nition is not possible, here.
HB300 | CP | 040-1CA00 | en | 18-28
00h: half-duplex
01h: full-duplex
Default: 00h
n
For a connection with minimum reflections and the break evaluation at RS422/485 opera-
tion, the lines may be preset with defined static voltage levels.
At the CP interface the wiring of the receiver is realized as follows:
Range of values:
00h: none
01h: R(A) 5Volt R(B) 0Volt
02h: R(A) 0Volt R(B) 5Volt
Default: 00h
n
Serial communication protocols
STX/ETX > Parameter data of STX/ETX
Wiring of the receiver
67
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