Siemens SIMATIC S7-400H System Manual page 291

2. and 3rd interface
Type of interface
Usable interface module
Length of the synchronization cable
Programming
Programming language
Instruction set
Nesting levels
System functions (SFC)
Number of simultaneously active SFCs per chain
•
•
•
•
•
•
•
•
The total number of active SFCs on all external chains may be four times more than on one single
chain.
System function blocks (SFB)
Number of simultaneously active SFBs per chain
•
•
The total number of active SFBs on all external chains may be four times more than on one single
chain.
User program protection
Access to consistent data in the process image
CiR synchronization time (in stand-alone mode)
Base load
Time per I/O byte
S7-400H
System Manual, 09/2007, A5E00267695-03
17.1 Technical specifications of the CPU 412–3H; (6ES7 412–3HJ14–0AB0)
SFC 59 "RD_REC"
SFC 58 "WR_REC"
SFC 55 "WR_PARM"
SFC 57 "PARM_MOD"
SFC 56 "WR_DPARM"
SFC 13 "DPNRM_DG"
SFC 51 "RDSYSST"
SFC 103 "DP_TOPOL"
SFB 52 "RDREC"
SFB 53 "WRREC"
Plug-in synchronization module (fiber-optic cable)
Synchronization module IF 960 (only in redundant
mode; in stand-alone mode the interface is
free/covered)
Max. 10 m,
can only be operated with synchronization
module 6ES7 960-1AA04-0XA0
LAD, FBD, STL, SCL, CFC, Graph, HiGraph®
See instruction list
8
See instruction list
8
8
8
1
2
8
8
1
See instruction list
8
8
Password protection
Yes
150 ms
40 µs
Technical data
291