Siemens SIMATIC S7-400H System Manual page 384

Technical data
20.1 Technical specification of the CPU 412–5H PN/DP; (6ES7 412-5HK06–0AB0)
S7 timers



IEC timers

Total retentive data area (incl. bit memories,
timers, counters)
Bit memory


Clock memories
Data blocks

Local data (configurable)

OBs

Number of free-cycle OBs
Number of time-of-day interrupt OBs
Number of time-delay interrupt OBs
Number of cyclic interrupts
Number of process interrupt OBs
Number of DPV1 interrupt OBs
Number of redundancy error OBs:
Number of asynchronous error OBs
Number of restart OBs
Number of synchronous error OBs
Nesting depth


FBs

384
Retentivity, configurable
Default
Time range
Type
Retentivity, configurable
Preset retentivity
Size
Default
Size
Per priority class
Additional ones in an error OB
Size
2048
From T 0 to T 2047
No retentive timers
10 ms to 9990 s
Yes
SFB
Data areas and their retentivity
Total work and load memory (with backup
battery)
8 KB
From MB 0 to MB 8191
From MB 0 to MB 15
8 (1 bit memory byte)
Maximum 6000 (DB 0 reserved)
Number range 1 - 16000
Maximum 64 KB
Maximum 16 KB
8 KB
Blocks
Instruction List
See
Maximum 64 KB
OB 1
OB 10, 11, 12, 13
OB 20, 21, 22, 23
OB 32, 33, 34, 35
OB 40, 41, 42, 43
OB 55, 56, 57
OB 70, 72
OB 80, 81, 82, 83, 84, 85, 86, 87, 88
OB 100, 102
OB 121, 122
24
1
Maximum 3000
Number range 0 - 7999
Maximum 64 KB
System Manual, 03/2012, A5E00267695-11
S7-400H