Siemens SIMATIC ET 200M Manual page 59

Configuration Options with the ET 200M
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
[ms] + K )
t
t
i
b : Number of input bytes (digital) at slot n
n
w : Number of input words (analog, ...) at slot n
n
di = 1, if the slot is configured with a digital module and
n
inputs are available
= 0 otherwise
ai = 1, if the slot is configured with a non-digital module
n
and inputs are available
= 0 otherwise
K = 200
t
Outputs
[ms] + K )
t
o o
b : Number of output bytes (digital) at slot n
n
w : Number of output words (analog, ...) at slot n
n
do = 1, if the slot is configured with a digital module and
n
outputs are available
= 0 otherwise
ao = 1, if the slot is configured with a non-digital module
n
and outputs are available
= 0 otherwise
K = 90
o
3-20
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11
(1 ) 8b ) ) ai (35 ) 16w
[di
n n n
n+4
11
(1 ) 6b ) ) ao
[do
n n n
n+4
)]
n
(35 ) 10w
)]
n
Distributed I/O Device ET 200M
EWA-4NEB780600602-06