Inhaltsverzeichnis
Werbung
Installation / Preparation for commissioning
4.3 Cable definition
Signal
Data+ / Data–
(RS422+ / RS422–)
Clock+ / Clock–
(RS422+ / RS422–)
Programming interface
(RS485+ / RS485–)
Supply voltage
The maximum cable length depends on the SSI clock frequency and cable quality and
should be conditioned to the following diagram.
Pay attention that per meter cable with an additional delay-time t
approx. 6 ns must be calculated.
SSI clock frequency [kHz]
Line length [m]
4.4 Connection – Notes
Mainly, the electrical characteristics are defined by the variable connection technique.
The connection can be made only in connection with the device specific pin
assignment!
At the delivery of the measuring system one device specific pin assignment in printed
form is enclosed and it can be downloaded afterwards from the page
„www.tr-electronic.com/service/downloads/pin-assignments.html". The number of the
pin assignment is noted on the nameplate of the measuring system.
For multiple redundant measuring systems, the connection must be carried out
separately for each interface unit.
TR-Electronic GmbH 2014, All Rights Reserved
Page 40 of 55
Line (e.g. TR Art.-No.: 64-200-021)
2
min. 0,25 mm
2
min. 0,5 mm
, twisted in pairs and shielded
810
750
570
approx. 12.5
approx. 25
approx. 50
TR - ELA - BA - DGB - 0022 - 09
, twisted in pairs and shielded
D
360
220
approx. 100 approx. 200 approx. 400 approx. 500
Printed in the Federal Republic of Germany
(Data+/Data–) of
120
100
12/09/2019
Werbung
Kapitel
Inhaltsverzeichnis
