Siemens SIMATIC ET 200M

Configuration Options with the ET 200M
3-20
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
Time Calculation
Only the processes in the IM 153-2 interface module are taken into consideration
in the formulae below. Times for data exchange and processes in the I/O modules
are not taken into consideration. The values only apply to the system without
active bus modules.
Inputs
t
i
[ms] + K
t
)
ȍ
11
n+4
[di
n
(1 ) 8b
n
) ) ai
n
(35 ) 16w
n
)]
b
n
: Number of input bytes (digital) at slot n
w
n
: Number of input words (analog, ...) at slot n
di
n
= 1, if the slot is configured with a digital module and
inputs are available
= 0 otherwise
ai
n
= 1, if the slot is configured with a non-digital module
and inputs are available
= 0 otherwise
K
t
= 200
Outputs
t
o
[ms] + K
o
)
ȍ
11
n+4
[do
n
(1 ) 6b
n
) ) ao
n
(35 ) 10w
n
)]
b
n
: Number of output bytes (digital) at slot n
w
n
: Number of output words (analog, ...) at slot n
do
n
= 1, if the slot is configured with a digital module and
outputs are available
= 0 otherwise
ao
n
= 1, if the slot is configured with a non-digital module
and outputs are available
= 0 otherwise
K
o
=90
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