6ES7972-0BB52-0XA0

Product information

The 6ES7972-0BB52-0XA0 is a Siemens PROFIBUS bus connector, RS 485, Fast Connect, with programming port, 90° cable outlet. It provides the same Fast Connect termination and 9.6 kbit/s to 12 Mbit/s transfer range as the version without the port, and adds a PG socket that allows a programming device to be connected to the bus without unplugging the station.

Where several stations share a segment, having at least one connector with a programming port on the bus is usually what allows an engineer to go online for diagnostics or download without interrupting the running network. The connector weighs 45 g — the extra 9 g over the portless version reflects the additional socket.

Technical specifications

Manufacturer / family	Siemens · SIMATIC DP
Product type	PROFIBUS bus connector
Cable outlet	90°
Programming port (PG socket)	Yes
Connection method	Fast Connect, integrated insulation displacement terminals
Network / terminal connection	9-pin sub-D connector
Transfer rate	9.6 kbit/s … 12 Mbit/s
Terminating resistor	Integrated resistor combination, connectable via slide switch
Locking mechanism	Screwed joint
Enclosure material	Plastic
Silicon-free	Yes
Strain relief	Yes
Ambient temperature, operation	−25 … +60 °C
Degree of protection	IP20
Net weight	45 g

Specifications as published in Siemens product data for this article number. Verify against the labelling of the unit offered to you.

When the programming port matters

A programming port on the bus connector is what makes online access possible at the station itself. On installations where the connector at a critical node was replaced with a portless version during earlier repairs, engineers discover the gap only when they need to go online — which is a common reason this specific variant is ordered as a spare.

Typical applications

• PROFIBUS DP nodes where a programming device must be connectable without disconnecting the station
• New PROFIBUS wiring where at least one node needs a PG socket
• Connecting drives, remote I/O and controllers to a PROFIBUS DP network
• Replacement of damaged or portless connectors on existing installations

Application examples describe typical uses of this product type. Suitability for your own installation must be confirmed against your engineering documentation.

Related references

• 6ES7972-0BA52-0XA0 — the same Fast Connect connector without a programming port
• 6ES7972-0BA42-0XA0 — PROFIBUS connector, 35°, screw terminals, no programming port
• 6ES7153-2BA10-0XB0 — ET 200M IM 153-2 DP HF interface module

Before you order

To confirm a specific unit, please provide the complete ordering code, the quantity required and the delivery destination. Availability, condition, quantity, lead time and commercial terms are confirmed individually after inquiry.

Frequently asked questions

What does the programming port allow?
It provides a PG socket so a programming device can be connected to the PROFIBUS segment directly at the connector.

Is the transfer rate the same as the version without the port?
Yes — 9.6 kbit/s up to 12 Mbit/s in both cases.

Which cable is required?
PROFIBUS FC installation cable, matching the integrated insulation displacement terminals.

Does the programming port affect the terminating resistor?
The integrated resistor combination is still set by slide switch. Follow the current manual for bus termination and how the PG socket interacts with it.

What is the price and lead time?
Confirmed individually against current availability and quantity.