Siemens Simatic S7-400 - Page 160

Technical specifications
10.1 Technical Specification of the CPU 414-3 PN/DP; (6ES7414-3EM05-0AB0)
S7-400 Automation System, CPU Specifications
10-4 Manual, 10/2006, 6ES7498-8AA04-8BA0
CPU and firmware version
Digital channels Max. 65536 / Max. 65536
• Centralized
Max. 65536 / Max. 65536
Analog channels Max. 4096 / Max. 4096
• Centralized
Max. 4096 / Max. 4096
Removal
Central racks/expansion units Max. 1/21
Multicomputing Max. 4 CPUs (with UR1 or UR2)
Number of plug-in IMs (overall) Max. 6
• IM 460
Max. 6
• IM 463-2
Max. 4
Number of DP masters
• Integrated
2
• Via IF 964-DP
1
• Via IM 467
Max. 4
• Via CP 443-5 Extended
Max. 10
IM 467 cannot be used with the CP 443-5 Extended
IM 467 cannot be used with the CP 443-1 EX4x in PN IO mode
Number of PN controllers
• Integrated
1
• Via CP 443-1 EX 41 in PN
mode
Maximum 4 in central rack
Number of plug-in S5 modules via adapter casing
(in the central rack)
Max. 6
Operable function modules and communication
processors
• FM
Limited by the number of slots and the number of
connections
• CP 440
Limited by the number of slots
• CP 441
Limited by the number of connections
• PROFIBUS and Ethernet CPs
including CP 443-5 Extended
and IM 467
Max. 14
Time
Real-time clock Yes
• Buffered
Yes
• Resolution
1 ms
• Accuracy at
– Power off
– Power on
Maximum deviation per day 1.7 s
Maximum deviation per day 8.6 s
Operating hours counters 8
• Number
0 to 7
• Value range
0 to 32767 hours
• Granularity
1 hour
• Retentive
Yes