The Racks Ur1 (6Es7400-1Tax1-0Aa0) And Ur2 (6Es7400-1Jax1-0Aa0) - Siemens SIMATIC S7-400 Reference Manual

2.2 The racks UR1 (6ES7400-1TAx1-0AA0) and UR2
(6ES7400-1JAx1-0AA0)
Order number
The "x" variable has the following meaning for order numbers 6ES7400-1TAx1-0AA0 and
6ES7400-1JAx1:
● x=0: Mounting rail made of sheet steel
● x=1: Mounting rail made of aluminum
Introduction
The UR1 and UR2 racks are used for assembling central racks and expansion racks. The UR1
and UR2 racks have both an I/O bus and a communication bus.
Suitable modules for UR1 and UR2
You can use the following modules in the UR1 and UR2 racks:
● When the UR1 or UR2 is used as a central rack:
All S7-400 modules except for receive IMs
● When the UR1 or UR2 is used as an expansion rack:
All S7-400 modules except for CPUs and send IMs
Special case: Power supply modules cannot be used in conjunction with the IM 461-1 receive
IM.
Design of the UR1 and UR2
290 mm 190 mm
(1)+(2)
(3)+(4)
Figure 2-2
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08

2.2 The racks UR1 (6ES7400-1TAx1-0AA0) and UR2 (6ES7400-1JAx1-0AA0)

1 2 3 4
1 2 3 4
40 mm
I/O bus
Communication bus
UR1 rack with 18 slots and UR2 with 9 slots
5 6 7 8 9 10 11 12 13 14 15 16 17 18
5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
4
465 mm
482,5 mm
Rack
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
2
3
240 mm
257,5 mm
29