Technical data

Active components
4.5 Active components for the link from PROFIBUS DP to RS-232C
PROFIBUS Network Manual
System Manual, Edition 04/2009, C79000-G8976-C124-03
99
AFD AFS
Functions
• Connection of field devices for PROFIBUS PA
• Automatic bus termination
• Isolation of defective PA segments
• Reconnection of isolated PA segments after
eliminating the problem
• Extending a PA segment during ongoing
operation
• Automatic switchover of the PA main line to
the active DP/PA coupler
Properties
• 2 cable glands for the PA main line
• 4 cable glands for 4 PA field devices
• Connection of the PROFIBUS PA trunk line and
the PA spur lines using the spring clamp
method
• Reverse polarity protection connections
• Diagnostics using LEDs
• Power supply via the PA bus
• Screw gland on substrate or mount with adapter
on mounting rail
• Degree of protection IP66
• Grounding terminal outside
• 2 cable glands for the PA main line
• 1 cable gland for the PROFIBUS PA line
• Optional: Center feed via a cable bushing
• Connection of the PROFIBUS PA trunk lines
with spring clamps
• Reverse polarity protection connections
• Connection of maximum 31 PA field devices
• Diagnostics using LEDs
• Power supply via the PA bus
• Screw gland on substrate or mount with
adapter on mounting rail
• Degree of protection IP66
• Grounding terminal outside
Ordering data
Ordering data Order no.
SIMATIC DP, active field distributor AFD 6ES7 157-0AF81-0XA0
SIMATIC DP, active field splitter AFS 6ES7 157-0AF82-0XA0
Further information
Operating instructions DP/PA Coupler, DP/PA Link and Y Link Bus Couplers (Bus links
(
http://support.automation.siemens.com/WW/view/en/1142696))