Siemens Simatic S7-400 - Manual (Page 484)

M7-400 Expansions
12-14
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
12.2.3 Technical Specifications of the EXM 478 Expansion Module
Technical Specifications of the EXM 478
The table below contains the technical specifications of the EXM 478 expansion
module:
EXM 478
6ES7 478-2AC00-0AC0
Performance Features
Number of connectable
interface modules 3
Connection of
expansion modules Yes
Technical Specifications
Supply voltage 5 VDC
Current consumption
(without interface
submodules)
0.2 A
Power losses
(without interface
submodules)
0.5 W
Permissible power losses
(with 3 interface
submodules)
•
Without forced
ventilation
•
With forced ventilation
max. 10 W
max. 12 W
Dimensions
W x H x D (mm)
25 x 290 x 210
Weight 0.65 kg
Note
The sum of the power losses of the EXM 478 expansion module and the interface
submodules it contains must not exceed the maximum permissible power losses.