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Appendix A • Maintenance Controller Extended (MTCX)
Automation PC 620 with 945GME N270 CPU board User's Manual V 1.10
Schematic diagram
Caution!
Due to safety requirements regulated by international standards, implementing an
E-stop element via SDL (using Matrix) is NOT allowed. Instead, such an element
must be wired according to the safety requirements.
Information:
Display data will not be updated and cannot be read by the MTCX while a display unit
is in upgrade mode (e.g. SDL firmware upgrade).
The nominal time specifications are not guaranteed maximum lengths of time, but
may be increased due to e.g. transfer disturbances and external influences.
Figure 328: SDL timing - Example for Automation Panel 900 with the number 0
Automation Panel 900 display unit
e.g. with Number 0 on Graphics Engine 2
16 ms
Data is provided new every 16 ms (nominal).
Graphics Engine
2
Graphics Engine 1
Data from all displays transmitted at a nominal 15 ms interval
MTCX
Scanned
display on
01 234 56
7
8
9 101112 1314
8
910
01 2
1 ms 1 ms 1 ms
Retrieve data
A different
display every ms
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