Siemens 7sg15 microtapp Operation Manual page 63

50/125 µm glass
SOURCE
Argus
(p)
Argus (p) 0
Argus 0
Modular I 0
Modular II 0
Sigma 1
0
Sigma 3 (p) 0
Sigma 3 20
(ST)
Sigma 4 (p) 0
Sigma 4 20
(ST)
Example:
A ring of relays with a Sigma 4p is required to communicate with a PC. The ring consists of an Argus relay and a
MicroTAPP. From the Transmitter of the Sigma 4p to the Receiver of the Argus, using 1mm polymer fibre, the
maximum distance is 38m. From the Transmitter of the Argus to the Receiver of the MicroTAPP (Modular II) using
1mm polymer fibre, the maximum distance is 70m. From the Transmitter of the MicroTAPP to the Receiver of the
Sigma 4p, the maximum distance is only 7m with 1mm polymer fibre. However, using 200PCS, the maximum
distance is extended to 2.3km! (There is a minimum distance associated with this configuration, however, of
around 1.5km).
©2011 Siemens Protection Devices Limited
Argus Modular I Modular II Sigma 1
0 0
420 0
0 0
420 0
420 0
0 0
20 20
0 0
20 20
7SG15 MicroTAPP Communications Interface
DESTINATION
Sigma 3
(p)
0 0 0
420 420 0
0 0 0
420 420 0
420 420 0
0 0 0
20 20 20
0 0 0
20 20 20
Sigma 3 Sigma 4 Sigma
(ST) (p)
0 0
920 920
0 0
920 920
920 920
0 0
20 20
0 0
20 20
Chapter 4 Page 7 of 8
4
0
920
0
920
920
0
20
0
20