Technical Specifications; Cpu 928 - Siemens S5-155U System Manual

5.2.3

Technical Specifications

Type of protection
Climatic ambient conditions
Mechanical ambient conditions
Noise immunity, electromagnetic
compatibility (EMC)
Supply voltage
Current consumption at 5 V
Current consumption at 24 V
Backup voltage
Backup current without
user RAM submodule
Digital inputs with process image
Digital inputs without process
image
or analog inputs
Digital outputs with process image
Digital outputs without process
image
or analog outputs
Flags
S flags
Timers
Counters
Size of user memory
DB RAM
Transmission rate of the
serial PG interface
System Manual
C79000-B8576-C199-03
Important for the USA and Canada
The following approvals have been obtained:
UL Listing Mark
Underwriters Laboratories (UL) to
Standard UL 508, Report E 85972
CSA Certification Mark
Canadian Standard Association (CSA) to
Standard C 22.2 No. 142, Report LR 63533
IP 00
See Technical Specifications of the S5-135U/155U CC
See Technical Specifications of the S5-135U/155U CC
See Technical Specifications of the S5-135U/155U CC
5 V ± 5 %
24 V + 25 %/- 17 %
5 A typical
760 mA max.
3.4 V
20 µA typical (at 25 o
C)
P area O area IM3 area
1024 max. –
1024 max. 2048 max. 2048 max.
64 max. 128 max. 128 max.
1024 max. –
1024 max. 2048 max. 2048 max.
64 max. 128 max. 128 max.
2048
8192
256
256
64 Kbyte max., EPROM or RAM
10
46 3/4 x 2 Kbyte
9600 bit/s
CPU 928B
IM4 area Total
– – 1024 max.
2048 max. 7168 max.
128 max. 448 max.
– – 1024 max.
2048 max. 7168 max.
128 max. 448 max.
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