Siemens ET 200S - Page 543

Response Times
D-5
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Example of the Calculation of the ET 200S Response Time in the Case of the
IM151-1 HIGH FEATURE
IM 151-1 HIGH FEATURE
PM-E 24 VDC
2DO 24 VDC
4DI 24 VDC
2DO 24 VDC 2RO
2DI 24 VDC
2DI 24 VDC
2DI 24 VDC
2DI 24 VDC
4DI 24 VDC
Bus terminator
PM-E 24 VDC
4DI 24 VDC 4DI 24 VDC
4DI 24 VDC
4DI 24 VDC
2RO
2RO
Slot
1 2 345 6 78 91011 131415161712
m = 17; m
do
=6
Response time
PII
[s] = 55 · m +130 = 55 · 17 +130 = 1065 s
Response time
PIQ
[s] = 10 · m
do
+90 = 10 · 6 +90 = 150 s
Response time [s] = response time
PII
+ response time
PIQ
+ 1000
Response time [s] = 1065 + 150
+ 1000 = 2215 ms
Figure D-4 Example Setup for the Calculation of the ET 200S Response Time in the Case
of the IM151-1 HIGH FEATURE
D.3 Response Times for the Digital Input Modules
Input Delay
The response times of the digital input modules depend on the input delay. See the
technical specifications in Chapter 11.
D.4 Response Times for the Digital Output Modules
Output Delay
The response times correspond to the output delay. See the technical
specifications in Chapter 11.