Device Min. required device index for I/O module as of
FW Version 3.0.14
DI572 A1
DO524 (-XC) A3
DO526 A2
DO526-XC A0
DO561 B2
DO562 A2
DO571 B3
DO572 B2
DO573 A1
DX522 (-XC) D2
DX531 D2
DX561 B2
DX571 B3
FM562 A1
XC = eXtreme Conditions
Extreme conditions
Terminal units for use in extreme ambient conditions have no   sign for XC
version.
The figure 4 in the Part no. 1SAP4... (lable) identifies the XC version.
Screw terminals Spring terminals
Conductor
Screwdriver Conductor
Screwdriver
(opens ter-
minal)
XC version
Terminals
 
Terminal units (AC500 standard) > TU515, TU516, TU541 and TU542 for I/O modules
2022/01/313ADR010278, 3, en_US130