RIO Drop Adapter Time Stamping Function
The BMECRA31210 and BMXCRA31210 adapter modules have a 10 ms time stamping function. The BMXCRA31200 does not support time stamping.
Time stamping of the I/O modules starts as soon as the adapter is configured.
To configure the time stamping buffer, double-click the adapter module and click the tab:
The refers to the buffer in the adapter module.
To configure the BM•CRA31210, refer to BMX CRA 1604 T Variables Settings in Unity Pro.
When using one or two As-i Bus BMX EIA 0200 modules with other modules in a Modicon X80 RIO drop, the accuracy of the timestamps may be reduced.
Some examples:
Discrete I/O 32 Channels |
Analog I/O 4 Channels |
BMXEIA0100 |
BMXNOM0200 |
Stamping Accuracy |
|
|---|---|---|---|---|---|
Dedicated High Accuracy NTP Server |
Internal NTP Server Stamping Accuracy |
||||
6 modules |
1 module |
0 |
0 |
10 ms |
10 ms |
6 modules |
1 module |
1 module |
1 module |
12 ms |
22 ms |
16 modules |
4 modules |
1 module |
1 module |
14 ms |
24 ms |
1 ms Time Stamping with BMXERT1604T
Use a BMXERT1604T time stamp module for more accurate (1 ms) time stamping.
To configure the BMXERT1604T, refer to this manual.
For More Information about Remote Time Stamping
For more information about time stamping in a Modicon X80 RIO drop, refer to:
System Time Stamping User Guide
Applicative Time Stamping with Unity Pro User Guide