Technical Specifications
A-9
C7-635 Control System
A5E00155581-04
Configuration
Rack Maximum 4
Modules in
rack 0
Maximum 4
Modules in
racks 1 and 2
Maximum 8
Modules in
rack 3
Maximum 7
Number of DP masters
• Integrated 1
• By means of CP Maximum 1
Function modules and communication processors that can be operated
• FM Maximum 8
• CP (PtP) Maximum 8
• CP (LAN) Maximum 10
Time
Realtime clock Yes (HW clock)
• Buffered Yes
• Backup period 6 weeks, typically (at an ambient temperature of 40°C)
• Accuracy Deviation per day < 10 s
Operating hours counter 1
• Number 0
• Value range 0 to 2
31
hours (when using SFC 101)
• Selectivity 1 hour
• Retentive Yes; requires restarting at every restart
Clock synchronization Yes
• In PLC Master
• On MPI Master/slave
S7 Message Functions
Number of stations that can log in
for message functions
(for example, OS)
Maximum 12
(depends on the number of connections configured for PG/OP and
S7 basic communication)
Process diagnostic messages Yes
• Simultaneously active alarm
S-blocks
Maximum 40
Siemens Controls
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