Helmholz PROFINET and PROFIBUS networking, on order
Helmholz, a family-run German company from Großenseebach in Franconia with more than 35 years in industrial networking, specialises in the connectivity around Siemens automation: PROFIBUS connectors and repeaters, PROFINET switches, NETLink gateways for programming S7 controllers over Ethernet, WALL IE firewalls and REX remote-maintenance routers. Everything is developed and produced in Germany.
We sell Helmholz products on order: send the part numbers, series or specification and the quantity, and we come back with one quote, usually within a working day. Bulk and project quantities welcome; shipped worldwide. The full range is on Helmholz's own site.
What we supply from Helmholz
The families we quote most. Anything else in the Helmholz catalogue can be asked for in the same form.
- PROFIBUS connectors, repeaters and diagnostics Fast-connect bus connectors, 90° and axial, with and without programming port; repeaters, diagnostic repeaters and cables.
- PROFINET switches Managed and unmanaged DIN-rail switches, IP67 and single-pair Ethernet variants.
- NETLink gateways Ethernet to MPI and PROFIBUS: programme, configure and visualise S7 PLCs over the network.
- WALL IE firewall and NAT gateway Separates machine networks from the plant network.
- PROFINET couplers and PN/CAN gateways PROFINET to PROFINET, EtherNet/IP, Modbus TCP, EtherCAT; CANopen and J1939 onto PROFINET.
- TB20 distributed I/O Bus couplers for PROFINET, PROFIBUS, EtherCAT, Modbus TCP, EtherNet/IP and CANopen with digital, analogue and function modules.
- REX routers and myREX24 portal Industrial remote maintenance over LTE or Ethernet with VPN.
- Diagnostics Cabinet Guard, Cable Guard and TAP IE test access points.
- Components for S7 Memory cards, front connectors, mounting rails and compatible I/O modules.
Where Helmholz is used
How ordering works
- Send the requirement. Part numbers, series or a spec sheet, with quantities and the delivery city. A BOQ or a photo of the nameplate works too.
- Get one quote. Price, lead time and freight in one quote, usually within a working day.
- Pay and receive. Order on the quote, pay by bank transfer or card against the proforma invoice, and track the shipment from your account.
Ask for a Helmholz quote
We reply with a price and a lead time. No spam, no list.

