
Chapter 3 Hardware description
Manual VIPA System 300S SPEED7
3-6
HB140E - CP - RE_341-2CH71 - Rev. 09/46
For a connection with minimum reflections and the wire-break recognition
at RS422/485 operation, the lines may be preset with defined static voltage
levels.
At the CP interface the wiring of the receiver is realized as follows:
Value
Description
Wiring of the receiver
None
No preassignment of the receiving lines.
This setting only makes sense with bus-
capable special drivers.
R(B) +
R(A) -
Signal R(A) 5Volt
(Break evaluation)
Signal R(B) 0Volt
With this preassignment break detection is
possible at full-duplex operation (RS422).
0V
5V
R(B) +
R(A) -
Signal R(A) 0Volt
Signal R(B) 5Volt
This preassignment corresponds to the idle
state (no sender is activated) at half-duplex
operation with RS485. Wire-break
recognition is not possible, here.
R(B) +
R(A) -
5V
0V
Defined static
voltage levels by
parameters
Summary of Contents for CP 341S
Page 1: ...VIPA System 300S SPEED7 CP 341 2CH71 Manual HB140E_CP RE_341 2CH71 Rev 09 46 November 2009 ...
Page 4: ...Contents Manual VIPA System 300S SPEED7 ii HB140E CP RE_341 2CH71 Rev 09 46 ...
Page 8: ...Safety information Manual VIPA System 300S SPEED7 4 HB140E CP RE_341 2CH71 Rev 09 46 ...
Page 70: ...Index Manual VIPA System 300S SPEED7 A 2 HB140E CP RE_341 2CH71 Rev 09 46 M Stich ...