Siemens SIMATIC S7-400 Reference Manual page 123

Configuration
Central racks/expansion
units
Multicomputing
Number of plug-in IMs
(overall)
•
IM 460
•
IM 463-2
Number of DP masters
•
Integrated
•
Via IM 467
•
Via CP
IM 467 cannot be used with the CP 443-5 Extended
Number of plug-in S5
modules via adapter casing
(in the central rack)
Operable function modules
and communication
processors
•
FM
•
CP 440
•
CP 441
•
Profibus and Ethernet
CPs incl. CP 443-5
Extended and IM 467
Time
Clock
•
Buffered
•
Resolution
•
Accuracy at
– Power off
– Power on
Runtime meter
•
Number
•
Value Range
•
Granularity
•
Retentive
Time synchronization
•
In PLC, on MPI and DP
Time of day difference in
the system for
synchronization via
•
ETHERNET
•
MPI
Automation System S7-400 CPU Specifications
A5E00165965-01
Max. 1/21
Max. 4 CPUs
(with UR1 or UR2)
Max. 6
Max. 6
Max. 3
2
Max. 4
Max. 10
Max. 6
Limited by the number of
slots and the number of
connections
Limited by the number of
slots
Limited by the number of
connections
Max. 14
Yes
Yes
1 ms
Deviation per day 1.7 s
Deviation per day 8.6 s
8
0 to 7
0 to 32767 hours
1 hour
Yes
Yes
as master or slave
maximum 10 ms
maximum 200 ms
Technical Specifications
S7 Message Functions
Number of stations that can
log on for message
functions (e.g. WIN CC or
SIMATIC OP)
Symbol-related messages
•
Number of messages
– Overall
– 100 ms grid
– 500 ms grid
– 1000 ms grid
•
Number of additional
values per message
– With 100 ms grid
– With 500, 1000 ms
grid
Block-related messages
•
Simultaneously active
ALARM-S/SQ blocks
and ALARM-D/DQ
blocks
ALARM-8 blocks
•
Number of
communication jobs for
ALARM-8 blocks and
blocks for S7
communication (can be
set)
•
Preset
Process control reports
Number of archives that
can log on simultaneously
(SFB 37 AR_SEND)
Test and Startup Functions
Monitor/modify variable
•
Variables
•
Number of variables
Force
•
Variables
•
Quantity
Status block
Single sequence
Diagnostic buffer
•
Number of entries
•
Preset
Number of breakpoints
Max. 8
Yes
Max. 512
None
Max. 256
Max. 256
1
None
1
Yes
Max. 70
Yes
Max. 300
150
Yes
4
Yes
Inputs/outputs, memory
markers, DB, distributed
inputs/outputs, timers,
counters
Max. 70
Yes
Inputs/outputs, memory
markers, distributed
inputs/outputs
Max. 64
Yes
Yes
Yes
Max. 400 (can be set)
120
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