Address Assignment and Installation
3.1 Address assignments in the F-CPU
4 F-DI/3 F-DO DC24V PROFIsafe:
x + 0 (inputs)
x + 0 (outputs)
4 F-DO DC24V/2A PROFIsafe:
1 F-RO DC24V/AC24..230V/5A:
x = Module start address
You may only access the addresses occupied by useful data. The other address ranges
occupied by the F-modules are assigned for functions including safety-related
communication between the F-modules and F-CPU in accordance with PROFIsafe.
With the 1oo2 evaluation of sensors, only the less significant channel of the channels that
are grouped as a result of the 1oo2 sensor evaluation can be accessed in the safety
program.
Additional Information
Detailed information about fail-safe I/O access can be found in the
Configuring and Programming
Programming
28
x + 0
Channel
7
—
—
x + 0
—
x + 0
—
WARNING
manual.
Occupied Bits in F-CPU per F-Module:
Channel
Channel
Channel
6
5
4
—
—
—
—
—
—
—
—
—
—
—
—
S7 F/FH Systems, Configuring and
manual or the
Installation and Operating Manual, 08/2008, A5E00103686-07
Channel
Channel
3
2
Channel
Channel
3
2
—
Channel
2
Channel
Channel
3
2
—
—
S7 Distributed Safety,
ET 200S Distributed I/O System - Fail-Safe Modules
Channel
Channel
1
0
Channel
Channel
1
0
Channel
Channel
1
0
Channel
Channel
1
0
0
Channel
0
(Readba
ck
channel)