32
Calculating and Verifying the Reaction Time
Section 2-3
Example of Maximum Reaction Time Calculation
Example 1: Remote Input – NE1A-series Controller Output
Maximum reaction time (ms)
= Switch reaction time
+ DST1-series I/O Terminal input reaction time
+ Network reaction time
+ NE1A-series Controller remote input/local output reaction time
+ Actuator reaction time
= Switch reaction time
+ ON/OFF delay (DST1-series I/O Terminal) + 16.2
+ 24
+
6 + 2.5
+ Actuator reaction time
= 48.7 + ON/OFF delay + Switch reaction time + Actuator reaction time
DeviceNet
DST1-series
I/O Terminal
NE1A-SCPU01
Switch
Actuator
Safety connection (EPI = 6 ms)
network reaction time = 24 ms
SNC cycle time = 6 ms
I/O refresh cycle = 6 ms
Summary of Contents for DeviceNet Safety
Page 1: ...SYSTEM CONFIGURATION MANUAL Cat No Z905 E1 07 DeviceNet Safety...
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