Configuring
2.3 Maximum Number of Connectable Modules/Maximum Configuration
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
25
Example
In the following example, modules with a total parameter length of 234 bytes were used in an
ET 200S.
Number
and type of
modules
: 1 x
IM151-1
HIGH
FEATURE
+ 1 x
PM-E
DC24..48V/
AC24..230V
+ 5 x
F-DI
module*
+ 2 x
F-DO
module**
= 9
modules
Parameter
length
: 27 bytes***
+ 3 bytes
+ 160 bytes + 44 bytes
= 234 bytes
* 5 F-DI modules are available: 20 SIL3 or 40 SIL2 inputs
** 2 F-DO modules are available: 8 SIL2/SIL3 outputs
*** 56 bytes in isochronous mode
Power Modules: Maximum Configuration per Potential Group
Table 2- 5
Maximum configuration per potential group
Power Modules
Maximum Current
Carrying Capacity
Connectable Modules/Motor Starters
PM-E F pm DC24V
PROFIsafe
PM-E F pp DC24V
PROFIsafe
10 A
The number of modules that can be connected
depends on the total current of all modules in the
potential group. The total current may not exceed
10 A. The total current is influenced primarily by
the digital output modules.
PM-D F DC24V
PROFIsafe
10 A briefly*
5 A permanent*
The number of motor starters/modules that can be
connected depends on the total current of all
motor starters/modules in the potential group. The
total current may not exceed 10 A.
Current Consumption of the F-Motor Starters
* Reason:
U1 (electronics supply)
SG (shutdown groups)
Switching time (up to 200 ms)
0.15 A
0.25 A
Duration (after 200 ms)
0.15 A
0.06 A
ET 200S: Limitations and maximum configuration
For further information about limitations and maximum configuration of the standard ET 200S
refer to the
ET 200S Distributed I/O System Operating Instructions.
