Time Stamp Function; Structure Of An Ets Entry - GE RSTi-EP User Manual

Byte Format
IB0 Byte
Byte
IB1
IB2
Word
IB3
IB4 Byte
IB5 Byte
IB6
Word
IB7
IB8 Byte
IB9 Byte
IB10
Word
IB11
-- --
IB56 Byte
IB57 Byte
IB58
Word
IB59
Internal process data mapping with data format "Standard". Depending on the fieldbus specification and the data
†
format of the communicating fieldbus components the bytes and/or words can be reversed during data transfer.

5.6.1 Time Stamp Function

With time stamp function (ETS = edge time stamp) enabled, at every corresponding edge the time
value of the timer is stored in the process image as an ETS entry together with the status of the
inputs and a running number.
The module does not use any bytes in the output range. It uses 60 Bytes in the input range for 15 ETS
entries each with 4 bytes.

5.6.2 Structure of an ETS Entry

Input image PII
Running Number RN
Time stamp ETS_US
GFK-2958E
Process† Data Inputs EP-12F4
Name
Input image 1
Running number 1
Time stamp 1
Input image 2
Running number 2
Time stamp 2
Input image 3
Running number 3
Time stamp 3
--
Input image 15
Running number 15
Time stamp 15
After the edge transition, the status of the inputs is stored here. The input
byte has the following bit assignments:
Bit 0: DI 0
Bit 1: DI 1
Bit 2: DI 2
Bit 3: DI 3
Bit 4 ... 7: reserved (0)
The RN (running number) is a consecutive number from 0 to 127. It
describes the chronological sequence of the edges
The 16-bit timer (0 ... 65535μs) in the u-remote module is started as soon
as the power supply is switched on and after (216 -1) μs restarts at 0.
RSTi-EP User Manual
Chapter 5 Detailed Descriptions of I/O Modules
Remark
Bit0 = DI0 ... Bit3 = DI3, Bit4 ... 7 reserved
0 ... 127 rotating
0 ... 65535 μs rotating
120