CoreTigo TigoMaster 2TH-PROFINET - Table 23: Time Base of I-Am-Alive Time; Table 24: Calculation of I-Am-Alive Time

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TigoMaster 2TH – PROFINET User Manual
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Table 23: Time Base of I-Am-Alive Time
Value
Time Base
Description
0
Reserved
Reserved. Do not use.
1
1.664 ms
Time base is 1.664 ms
2
5 ms
Time base is 10 ms
3
1 sec
Time base is 1 sec
4
1 min
Time base is 1 min
5 … 255
Reserved
Reserved. Do not use.
The multiplier has the value range of 1 … 255.
The I-Am-Alive Time parameter (Multiplier * Time Base) is calculated as shown in the following table:
Table 24: Calculation of I-Am-Alive Time
Multiplier (Bits 8-
15)
Time Base (Bits
0-7)
Calculated I-Am-Alive
Time
Value
1
1: 1.664 ms
1.664 ms
257
2: 5 ms
5 ms
258
3: 1 sec
1 sec
259
4: 1 min
1 min
260
2
1: 1.664 ms
3.328 ms
513
2: 5 ms
10 ms
514
3: 1 sec
2 sec
515
4: 1 min
2 min
516
3
1: 1.664 ms
4.992 ms
769
2: 5 ms
15 ms
770
3: 1 sec
3 sec
771
4: 1 min
3 min
772
4 … 254
1 … 4
Multiplier * Time base
Value of Multiplier * 256 + value of
Time base
255
1: 1.664 ms
424.32 ms
65281
2: 5 ms
1275 ms
65282
3: 1 sec
255 s
65283
4: 1 min
255 min (10 min is used)
65284