DP/PA coupler

Bus connection

Connection for PROFIBUS PA

• DP/PA coupler Ex [i]

2 terminals of a 4-pole screw-type terminal, integrated terminating resistor

• DP/PA coupler FDC 157-0

4-pole screw-type terminal for connection and looping through, selectable terminating resistor

Connection for PROFIBUS DP

9-pin Sub-D plug,
contact assignment as described in IEC 61158/EN 50170

Module-specific data

Degree of protection

IP20

Transmission rate

• on PROFIBUS DP

45.45 Kbps

• on PROFIBUS PA

31.25 Kbps

Communication protocol

PROFIBUS DP

Voltages, currents, potentials

Supply voltage

24 V DC (20.4 вЂ¦ 28.8 V)

Reverse polarity protection

Yes

Overvoltage protection

Yes

Voltage at coupler output (PA)

• DP/PA coupler Ex [i]

13 ... 14 V DC

• DP/PA coupler FDC 157-0

31 ± 1 V DC

Voltage monitoring

15.5 V

Overvoltage monitoring

U > 35 V; latching cutoff

Voltage failure bridging

Min. 5 ms

Current at coupler output (PA)
for supplying the PA field devices

• DP/PA coupler Ex [i]

max. 110 mA

• DP/PA coupler FDC 157-0

max. 1 A

Galvanic isolation 24 V DC

• PROFIBUS DP/PROFIBUS PA

Yes

• PROFIBUS DP/supply

Yes

• PROFIBUS PA/supply

Yes

• All electric circuits/functional grounding

Yes

Power consumption of modules (24 V DC)

• DP/PA coupler Ex [i]

Max. 400 mA

• DP/PA coupler FDC 157-0

max. 2.3 A

Power loss of the module

• DP/PA coupler Ex [i]

Typ. 7 W

• DP/PA coupler FDC 157-0

Typ. 13.4 W

Status, interrupts, diagnostics

Diagnostics displays DP/PA coupler Ex [i] and DP/PA coupler FDC 157‑0

• PROFIBUS DP bus monitoring

Yellow LED "DP"

• PROFIBUS PA bus monitoring

Yellow LED "PA"

• 24 V DC power supply monitoring

Green "ON" LED

Additive diagnostics displays of the DP/PA coupler FDC 157‑0

• Group error

Red LED "SF"

• Bus error

Red LED "BF"

• Monitoring DP/PA coupler (active coupler in redundant configuration)

Yellow LED "ACT"

Climatic conditions

Permissible operating temperature
DP/PA coupler Ex [i] and DP/PA coupler FDC 157‑0

• Horizontal installation

-25 … +60 °C

• Vertical installation

-25 … +40 °C

Dimensions and weight

Dimensions (W Г— H Г— D) in mm

80 Г— 125 Г— 130

Weight

• DP/PA coupler Ex [i]

approx. 550 g

• DP/PA coupler FDC 157-0

Approx. 515 g

IM 153-2 High Feature Outdoor

Bus connection

• Connection for PROFIBUS DP

9-pin Sub-D plug, contact assignment as described in IEC 61158/EN 50170, Vol. 2

Connectable lower-level components

Number of couplers

• DP/PA coupler

max. 5

• Y coupler

1

Number of PA devices on PROFIBUS PA

max. 64

Module-specific data

Degree of protection

IP20

Transmission rate of the higher level DP master system

9.6; 19.2; 45.45; 93.75; 187.5; 500 Kbps;
1.5; 3; 6; 12 Mbps

Communication protocol

PROFIBUS DP

Frame length

• I/O data

Max. 244 bytes

• Configuration frame

Max. 244 bytes

• Diagnostics frame

Max. 244 bytes

• Parameter assignment frame

Max. 244 bytes

Voltages, currents, potentials

Supply voltage

24 V DC (20.4 … 28.8 V)

Reverse polarity protection

Yes

Voltage failure bridging

20 ms

Galvanic isolation

• to the higher-level DP master system

Yes

• to the DP/PA coupler or Y coupler

No

Power consumption of modules (24 V DC)

• In the PA link

Max. 200 mA (at 20.4 V)

• In the Y link

Max. 400 mA (at 20.4 V)

Power loss of the module

• In the PA link

Max. 2.6 W (at 28.8 V)

• In the Y link

Max. 3.6 W (at 28.8 V)

Infeed, mechanical design

4-pin screw terminal, short-circuiting link between PE and M24; the short-circuiting link must be removed for floating operation (independent of this, the DP interface is always floating)

Status, interrupts, diagnostics

Diagnostic displays

• Group error

Red LED "SF"

• Bus error on higher level DP master system

Red LED "BF 1"

• Bus error on underlying bus system

Red LED "BF 2"

• Module is active in redundancy mode

Yellow LED "ACT"

• 24 V DC power supply monitoring

Green "ON" LED

Climatic conditions

Permissible operating temperature

• Horizontal installation

-25 … +60 °C

• Vertical installation

-25 … +40 °C

Dimensions and weight

Dimensions (W Г— H Г— D) in mm

40 Г— 125 Г— 130

Weight

approx. 360 g