The Siemens 6ES7157-0AD82-0XA0 is a DP/PA Coupler Ex [ia] (FDC157 Ex) from the SIMATIC DP distributed I/O family, designed to connect PROFIBUS PA field devices to a PROFIBUS DP network in hazardous areas. It enables direct integration of intrinsically safe PA instruments (up to Zone 0/1/2) without requiring a separate DP/PA Link configuration.
Item No :
6ES7157-0AD82-0XA0Order(MOQ) :
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EXWProduct Origin :
GermanyShipping Port :
WuhanLead Time :
3~5 daysWeight :
3kg| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES7157-0AD82-0XA0 |
| Product Family | SIMATIC DP, Distributed I/O |
| Product Type | DP/PA Coupler Ex [ia] (FDC157 Ex) |
| Function | Field device interface between PROFIBUS DP and PROFIBUS PA |
| PROFIBUS DP Interface | 9-pin Sub-D, max. 45.45 kbit/s |
| PROFIBUS PA Interface | Max. 31.25 kbit/s, IEC 61158-2 compliant |
| Max PA Devices | 31 per segment |
| PA Output Current | Max. 110 mA |
| Supply Voltage | 24 V DC (20.4 – 28.8 V) |
| Current Consumption | Max. 400 mA |
| Power Loss | Typ. 7 W |
| Explosion Protection | Ex [ia] IIC; Uo max. 15 V, Io max. 247 mA, Po max. 1.95 W |
| Galvanic Isolation | Between DP/PA and all other circuits: Yes |
| Insulation Test Voltage | 500 V AC |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | Max. 95% |
| Dimensions (W x H x D) | 80 x 125 x 130 mm |
| Weight | Approx. 550 g |
| Diagnostic LEDs | DP bus activity (yellow), PA bus activity (yellow), 24V supply OK (green) |
| Lifecycle Status | Active (PM300) – Planned phase-out start: October 2027 |
| Model | Description | Typical Application |
|---|---|---|
| 6ES7157-0AD82-0XA0 (this model) | DP/PA Coupler Ex [ia], 110 mA, intrinsically safe | Hazardous area PA device integration |
| 6ES7157-0AC85-0XA0 | DP/PA Coupler FDC157-0, non-Ex version | Non-hazardous area PA device integration |
| 6ES7157-0AD81-0XA0 | Predecessor Ex [ia] coupler (product cancelled) | Legacy hazardous area installations |
| 6ES7153-2BA82-0XB0 | IM 153-2 HF interface module for DP/PA Link | Full-speed DP network with PA segment isolation |
| 6ES7195-7HG80-0XA0 | Bus Module BMFDC/FDC (redundant) | Redundant DP/PA coupler configurations |
| 6ES7195-7HF80-0XA0 | Bus Module BM DP/PA | Standard coupler mounting base |
Q1: What is the difference between a DP/PA Coupler and a DP/PA Link?
A DP/PA Coupler (like the 6ES7157-0AD82-0XA0) connects PA instruments directly to the DP network, but this requires reducing the entire DP network speed to 45.45 kbit/s. A DP/PA Link uses an IM 153-2 interface module with up to 5 couplers, allowing the DP network to operate at full speed (up to 12 Mbps) while the couplers handle PA communications independently .
Q2: Which hazardous areas is this coupler suitable for?
The 6ES7157-0AD82-0XA0 is an Ex [ia] version with intrinsic safety protection. It is suitable for connecting PA devices in Zone 0, Zone 1, and Zone 2 hazardous areas. The coupler itself is installed in Zone 2, while the intrinsically safe PA segment can extend into Zone 0/1 .
Q3: How many PA field devices can be connected to this coupler?
The coupler supports up to 31 PA field devices per segment. The maximum output current to PA devices is 110 mA, which limits the number of devices based on their individual current consumption .
Q4: What software is required to configure this coupler?
The coupler is configured using STEP 7 V5.3 SP3 and HSP0095 or higher, SIMATIC PCS 7 V7.0 and higher, or PCS neo V3.1 and higher. For new configurations, STEP 7 V5.5 SP4 and HSP253 or higher is recommended.
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