Siemens Simatic 6ES7 157-0AC80-0 A0 Series, Manual

Page: 158 / 182

Technical Specifications
B-36
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
B.3 Technical specifications of the IM 157
(6ES7 157-0AA82-0XA0)
Dimensions and weight
Dimensions
W
H D (mm)
40 125 130
Weight Approx. 350 g
Module-specific data
Transmission rate of
higher level DP master
system 9,6; 19,2; 45,45; 93,75;
187,5; 500 kBaud
1,5; 3, 6, 12 MBaud
Bus protocol PROFIBUS-DP
Frame length of I/O data Max. 244 bytes
Configuration frame
length Max. 244 bytes
Diagnostic frame length Max. 231 bytes
Parameter assignment
frame length Max. 214 bytes
Suitable for system
changes during
operation: Yes
Voltages, currents, potentials
Rated supply voltage 24 VDC
(20.4 V ... 28.8 V)
Polarity reversal
protection Yes
Power failure
bridging 20 ms
Isolation
To underlying DP
master system Yes
To DP/PA or Y
coupler No
Insulation tested at 500 VDC
Use in DP/PA link
Power input
(24 VDC) Max. 100 mA
Power loss Typically 2 W
Use in Y link
Power input
(24 VDC) Max. 200 mA
Power loss Typically 4 W
Status, interrupts, diagnostics
Status display No
Interrupts Yes
Diagnostic function Yes
Group error Red “SF” LED
Bus error on higher
level DP master
system Red ”BF 1” LED
Bus error on
underlying bus
system Red ”BF 2” LED
IM has an active
channel Yellow ”ACT” LED
24 V supply
monitoring Green “ON” LED
Data on connection of underlying bus compo-
nents
Connectable DP/PA
coupler Max. 5
Connectable Y coupler 1
Connectable underlying
slaves Max. 64
Number of slots in
underlying slaves Max. 236 or
(244 – number of PA
field devices)