Racks
2-8 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
2.5 The Rack CR3; (6ES7401-2TA01-0AA0)
Introduction
The CR3 rack is used for the assembly of CRs in standard systems (not in
fault-tolerant systems). The CR3 has an I/O bus and a communication bus.

Suitable Modules for CR 3

You can use the following modules in CR3:
All S7-400 modules with the exception of receive IMs
You can only use the CPU 414-4H and CPU 417-4H in stand-alone operation.

Structure of the CR3

190 mm
40 mm
1234
1234
115 mm
132 mm
Figure 2-5 CR3 Rack

Technical Specifications of the CR3 Rack

Rack CR3
Associated programming package As of STEP7 V 5.1; ServicePack 3
Number of single-width slots 4
Dimensions W x H x D (in mm) 122.5 x 290 x 27.5
Weight (in kg) 0.75
Buses I/O bus and communication bus