The Siemens 6ES7148-1EH01-0XA0 is the SIMATIC DP pneumatic interface module EM 148-P for the ET 200X distributed I/O family, providing 16 digital outputs to drive Festo CPV-10 valve terminals. It is designated a spare part, meaning it is intended as a replacement for existing ET 200X stations rather than for new installations. The module connects up to 8 valve disks (16 valve functions) and draws 35 mA from the backplane bus plus up to 370 mA from the load voltage supply 2L+ (including the valves themselves).
Pneumatic and electrical ratings
The interface handles compressed air filtered to 40 µm, with or without oil (VG 32. Permissible working pressure ranges from 3 bar up to 8 bar, and the rated flow is 400 l/min. The 16 outputs are opto-isolated from the backplane bus; channel-to-channel isolation is also provided, grouped in 16 (all channels in one group). Each valve output is limited to 20 mA.
Sourcing reality
As a spare part, this module is not part of Siemens' current catalog for new ET 200X builds. It remains available through our supply channel as a replacement component; each unit is quoted to order against an RFQ. The part should be specified only for maintenance of existing pneumatic stations using Festo CPV-10 terminals. No direct functional replacement exists in the current SIMATIC portfolio – the form factor and pneumatic interface are unique to this legacy line.