# Sourcing for low power stepper motor driver assembly. Which is best cost and host software wise?

For small batch production I am looking for small low cost product. Need it to be network controlled (Ethernet TCP/IP) with open documentation. The current is about 1..2..3 Ampere, voltage 24..48V. Also nice to have just 1..4 axes and DIN rail mount.

Problem is, that everything I can find is serial port controlled or modular blocks with 2-3 accessories with proprietary software and lot of unnecessary features, making software part complicated and requiring for host PC to be equipped with extra $100 I/O ports. • I would not call a 3A/48V, 4-axis stepper controller "low power". Your requirements (Ethernet/DIN/motor control) seem fairly disparate so I would be surprised to find a single unit that does all that. By "$100 I/O ports" do you mean an RS485 card? – Nick T Nov 4 '10 at 3:02
• Yes. Those RS485 cards are annoyance from software point of view. Cards like this are usually small batches no matter how big a manifacturer is. And so, the quality of drivers is always poor. for this reason alone, its worthy to use TCP/IP with zero proprietary software on PC host side. – user924 Nov 4 '10 at 23:17