TOX EPW400 - Interfaces; Profibus

Technical data
40 OM 100.EPW400.202002.en
3.4 Interfaces
3.4.1 Profibus
According to ISO/DIS 11898, isolated
Min.
max.
Output differential voltage
± 1.5 V
± 5 V
Input differential voltage
± 0.2 V
± 5 V
Input offset voltage
- 7 V/+ 12 V (to GND)
Output drive current
± 55 mA (Udiff = ± 1.5 V)
Transmission speed
Up to 100 m cable
length
max. 12000 kbit
Up to 200 m cable
length
max. 1500 kbit
Up to 400 m cable
length
max. 500 kbit
Up to 1000 m cable
length
max. 187.5 kbit
Up to 1200 m cable
length
max. 93.75 kbit
Number of subscribers per
segment
Without repeater
max. 32
With repeater
Max. 126 (every repeater
used reduces the max.
number of subscribers)
Connecting line
Shielded, twisted
Wire cross-section
Min. 0.34 mm²
Wire diameter 0.64 mm
Wave impedance
135 to 165 Ω
Capacitance per unit length
< 30 pf/m
Loop resistance
110 Ω/km
Recommended cables
For fixed installation of UNITRONIC
®
BUS L2/FIP
or
UNITRONIC
®
BUS L2/FIP 7-wire
For flexible installation of UNITRONIC
®
BUS FD P
L2/FIP
Node addresses
3 to 124