Ssi Connection; Typical Cable Length - TR-Electronic _LLB500(F)-00601 Benutzerhandbuch

Installation

6.2.8 SSI connection

The SSI interface is only implemented in the LLB-500 and LLB-500(F) measuring systems.
Connect a SSI master according to the connection diagram in Figure 19. It is compulsory to use a
twisted pair cable. See chapter 8.8 "SSI interface" on page 128 and 10.3.6 "Interface configuration
(RS-422 / SSI)" on page 142 for further informations about the SSI interface.
Figure 19: Connection of a SSI Master

6.2.8.1 Typical cable length

The maximum transmission rate depends on the cable length as shown in the following table. For
detailed cable specification use the SSI guidelines. The transmission rate must be specified at the SSI
master.
Cable length
< 12.5 m
< 100 m
< 200 m
< 400 m
< 500 m
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Page 118 of 156
• Danger of physical injury and damage to property by undefined
interface states !
The RS-422 interface cannot be used simultaneous with the SSI interface.
-
< 25 m
< 50 m
TR - ELE - BA - DGB - 0021 - 06
Transmission rate
< 810 kBaud
< 750 kBaud
< 570 kBaud
< 360 kBaud
< 220 kBaud
< 120 kBaud
< 100 kBaud
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03/09/2016