Copyright © 2021 CoreTigo Ltd.
TigoMaster 2TH – PROFINET User Manual
Page 42 of 69
5.6. Parameters
5.6.1. Port Cycle Time
The Port Cycle Time parameter sets up the cycle time of a W-Port of the TigoMaster 2TH. The cycle time
is encoded using Time Base values (bits 6+7) and Multiplier values (bits 0-5), as shown in the following
table.
Table 22: Port Cycle Time Calculation
Resulting Cycle Time/Notes
If the free-running mode is chosen with a time base of 0,
the TigoMaster 2TH stack will automatically configure the
Master cycle time to be the Minimum Master cycle time
based on the PD Segmentation length, Slot Type, and
Max Retry configurations.
5 ... 315 ms (Time Base * Multiplier)
For W-Devices and W-Bridges the minimum possible
transmission time is 5 ms
5.6.2. I-Am-Alive Time
The I-Am-Alive Time parameter serves for TigoMaster 2TH and W-Device communication control if no
other messages are transmitted. The W-Device must send I-Am-Alive messages to the TigoMaster 2TH
before timeout, otherwise the TigoMaster 2TH reports a communication error (ComLost).
The I-Am-Alive Time parameter comprises a Time Base and Multiplier, and is calculated by multiplying
them by each other.
Table 23 shows the coding of the time base.
To Next Page
Loading...
Need help?
General