Siemens SIMATIC S7-400H System Manual page 288

Technical data
17.1 Technical specifications of the CPU 412–3H; (6ES7 412–3HJ14–0AB0)
Time
Clock (real-time clock)
•
•
Maximum deviation per day
•
•
Operating hours counter
•
•
•
•
Clock synchronization
•
Time difference in the system with
synchronization via MPI
S7 message functions
Number of stations that can log on for message
functions (for example WIN CC or SIMATIC OP)
Block-related messages
•
Alarm_8 blocks
•
•
Process control messages
Number of archives that can log on
simultaneously (SFB 37 AR_SEND)
Test and commissioning functions
Status/modify variable
•
•
Force
•
•
Status LED
Status block
288
Buffered
Resolution
Power off (backed up)
Power on (not backed up)
Number/number range
Range of values
Granularity
Retentive
In AS, on MPI and DP
Simultaneously active Alarm_S/SQ blocks
and Alarm_D/DQ blocks
Number of communication jobs for ALARM_8
blocks and blocks for S7 communication
(selectable)
Preset
Variable
Number of variables
Variable
Number of variables
Yes
Yes
1 ms
1.7 s
8.6 s
8
0 to 7
0 to 32767 hours
1 hour
Yes
Yes
As master or slave
Max. 200 ms
Max. 8
Yes
Max. 100
Yes
Max. 600
300
Yes
16
Yes
Inputs/outputs, bit memory, DB, distributed
inputs/outputs, timers, counters
Max. 70
Yes
Inputs/outputs, bit memory, distributed
inputs/outputs
Max. 256
Yes, FRCE-LED
Yes
System Manual, 09/2007, A5E00267695-03
S7-400H