R. STAHL 9440/15-01-11-C1455 IS1 Remote I/O CPU and Power Module

The R. STAHL 9440/15-01-11-C1455 is a Remote I/O IS1 CPU and power module for Zone 2 installations, supplying up to 16 IS1+ I/O modules and their field circuits with intrinsically safe power, communicating via RS-485 with PROFIBUS DP V0/V1 HART PNO redundancy.

It runs from 20 to 35V DC (nominal 24V DC) drawing 0.3A unloaded up to approximately 4.9A with 16 I/O modules (7.2W plus 1W per module), supports full redundancy per PNO, transmission rates from 9.6kbit/s to 1.5Mbit/s over up to 1200m copper RS-485 (2000m via fiber optic), and is certified ATEX/IECEx for Zone 2, 21, 22 (Ex ec [ia, ib Gb] IIC T4 Gc).