Configuration Options
3-27
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Procedure for Parameterizing Clocking
1. Carry out settings on the CPU:
”Object Properties” of the CPU > “Clocked Interrupts” tab
– Set the CPU clocked interrupt
– Select the DP master system used.
– Select the desired partial process image.
Memory Interrupts Time-of-day interrupts Cyclic interrupts Diagnostics / clock
General Startup Clocked interrupts Cycle / clock memory Retentivity
OB 61:
Priority
DP master
system no.
Process image parti-
tion(s) (e.g.: 1.4)
Time lag
1 1 ms
Default
0.000
25
25
Figure 3-6 Clocked Interrupts Dialog Box
2. Carry out settings on the DP master system:
”Object Properties” of the DP master > ”General” tab > “Properties” button >
“Parameters” tab > “Properties” button > ”Network Settings” tab > “Options”
button
– Activate equidistance on the DP master system
– Set the length of the equidistant DP cycle (max. 250 ms).
– Set ”Times Ti and To same for all Slaves” (results in synchronization of the
I/O data of the different DP slaves)
– You can set the Ti and To times separately. Recommended: Accept the
default settings for Ti and To.