Omron E3X-DRT21 Operation Manual page 121

Communications Timing
Maximum Refresh Cycle of Incident Light Level Data (E3X-DRT21 Only)
The following tables list the maximum values for the refresh cycle of incident light level monitoring when the
Unit is operating with remote I/O communications in two-word mode with incident light level monitoring (DIP
switch pin 1 OFF and pin 2 ON). The maximum refresh cycle of incident light level monitoring depends on
whether explicit messages are used and on the number of Sensors that are connected, as shown in the tables.
Using Explicit Messages
Number of Sensors Maximum refresh cycle of
connected
1 50
2 100
3 160
4 240
5 330
6 430
7 540
8 670
9 2300
10 2500
11 3000
12 3300
13 3600
14 4200
15 4600
16 4900
Explicit messages are also used when the DeviceNet Configurator is connected.
Not Using Explicit Messages
Number of Sensors Maximum refresh cycle of
connected
1 20
2 40
3 60
4 90
5 110
6 140
7 170
8 200
9 1500
10 1900
11 2000
12 2200
13 2300
14 2400
15 3000
16 3200
Note Normally, the incident light level refresh cycle is much shorter than the values listed in these tables.The
refresh cycles can be extended, however, with some timing settings. Consider the maximum refresh
cycle when designing the system.
110
incident light level
monitoring (ms)
incident light level
monitoring (ms)
Appendix A