Data Sheet

Data sheet 6ES7157-0AC85-0XA0

Field Device Coupler FDC 157 physical interface for PROFIBUS PA

or Foundation Fieldbus H1 integrated bus supply up to 1000 mA with

redundancy capability integrated diagnostics Degree of protection

IP20 for extended temperature range

General information

Product description Field Device Coupler for PROFIBUS PA and Foundation Fieldbus

Supply voltage

Rated value (DC) 24V

permissible range, lower limit (DC) 20.4V

permissible range, upper limit (DC) 28.8V

Reverse polarity protection Yes

Overvoltage protection Yes

Mains buffering

● Mains/voltage failure stored energy time

5ms

Input current

Current consumption, max. 2.3A; At 24 V DC

Power loss

Power loss, typ. 13.4W

Interfaces

PROFIBUS DP

● Transmission rate, max.

45.45kbit/s

● Design of electrical connection of PROFIBUS

interface

9-pin sub D

PROFIBUS PA

● Transmission rate, max.

31.25kbit/s

● Number of connectable PA field devices

● Current output to PA field devices, max.

1A

Protocols

PROFIBUS DP Yes

PROFIBUS PA Yes

Interrupts/diagnostics/status information

Status indicator Yes; Group error (red)

Alarms Yes

Diagnostics function Yes

Diagnostics indication LED

● Bus activity DP (yellow)

Yes

6ES7157-0AC85-0XA0 Subject to change without notice

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Data sheet 6ES7157-0AC85-0XA0 Field Device Coupler FDC 157 physical interface for PROFIBUS PA or Foundation Fieldbus H1 integrated bus supply up to 1000 mA with redundancy capability integrated diagnostics Degree of protection IP20 for extended temperature range General information Product description Field Device Coupler for PROFIBUS PA and Foundation Fieldbus Supply voltage Rated value (DC) 24 V permissible range, lower limit (DC) 20.4 V permissible range, upper limit (DC) 28.
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● Bus activity PA (yellow) Yes ● Bus fault BF (red) Yes ● Group error SF (red) Yes ● Monitoring 24 V voltage supply ON (green) Yes Potential separation between backplane bus and all other circuit components Yes between PROFIBUS DP and all other circuit components Yes between PROFIBUS PA and all other circuit components Yes between supply and all other circuits Yes Isolation Isolation tested with 600 V DC Degree and class of protection Degree of protection acc.