Siemens Simatic S7-200 CPU 210 System Manual page 130

Index
Error handling
fatal errors, 2-17–2-19, C-1
non-fatal errors, C-1
non-fatal errors, 2-17–2-19
responding to errors, 2-17–2-19, C-1
restarting the CPU after a fatal error,
2-17–2-19
EU (Positive Transition) instruction, 5-3
European Community (CE) certification, A-3
Examples
contact instructions, 5-4
counter, 5-8
End (MEND), 5-12–5-14
high-speed counter, 4-14–4-16, 5-16
increment/decrement word, 5-9
interrupt routine, 4-14–4-16
Interrupt Routine instructions, 5-16
jump to label, 5-12–5-14
ladder elements, 4-9
logic stack, 5-13–5-15
move word, 5-10–5-12
output instructions, 5-5
Status Chart, 2-15
Symbol Table, 2-13
timer, 5-7
using the analog adjustment, 4-16
watchdog reset, 5-12–5-14
Execution times, E-1
affected by power flow, E-1
statement list instructions, E-1
F
Fan-out connector, order number, F-1
Fatal errors, 2-17–2-19, C-1
Features, 1-2
Field wiring
installation procedure, 1-8
optional connector, 1-10
order number, F-1
wire sizes, 1-8
First scan bit, B-1
G
Grounding and isolation, wiring guidelines, 1-9
Index-4
Guidelines
AC installation, 1-10
case-sensitive symbols, 2-13
creating a program with STL, 2-8
DC installation, 1-10
designing a PLC system, 4-2–4-3
entering symbolic addresses, 2-13
grounding and isolation, 1-9
number of characters per symbol, 2-13
number of symbols allowed, 2-13
overlapping memory addresses in symbol
names, 2-13
suppression circuits, 1-12
DC relay, 1-12
wiring, 1-8
Guidelines for converting files, D-2
H
Hardware interrupt, 4-5
affecting the scan cycle, 4-6–4-9
effect on the Watchdog Reset (WDR)
instruction, 5-11
enabling and disabling, 5-14
example, 4-14–4-16, 5-16
guidelines and restrictions, 5-15
high-speed counter example, 4-14–4-16, 5-16
interrupt instructions, 5-14–5-16
returning from the interrupt routine, 5-14
sample interrupt routine, 4-14–4-16, 5-16
sharing data between main program and
interrupt, 5-15
Help. See Online help
High potential isolation test, A-3
High-speed counter, using the hardware interrupt,
4-14–4-16, 5-16
I
Importing files from STEP 7-Micro/DOS, D-1
guidelines and limitations, D-2
saving a program, D-2
Increment Word (INCW) instructions, 5-9
example, 5-9
Input image register, addressing, 4-12
S7-200 Programmable Controller, CPU 210
C79000-G7076-C235-01