Siemens SIMATIC S7-400H System Manual page 396

Technical data
20.2 Technical specifications of the CPU 414–5H PN/DP; (6ES7 414-5HM06–0AB0)
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

FCs

SDBs
396
Retentivity, configurable
Preset retentivity
Size
Default
Size
Per priority class
Additional ones in an error OB
Size
Size
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
See instruction list
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
OB70, 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
Maximum 3000
Number range 0 - 7999
Maximum 64 KB
Maximum 2048
System Manual, 03/2012, A5E00267695-11
S7-400H