The following screenshot shows how the information is displayed for a link that works with 3Mbit (e. g. with an ibaPADU-8).

Information on the Link and Image generation areas can be found in chapter Link view – 32Mbit.

There are 3 parameters that are specific to 2Mbit and 3Mbit operation:

FO signal strength

Difference between the maximum value and the minimum value received from the FO unit

This can be a maximum 255. The higher this value the stronger the FO input signal.

Device ID

ID of the last device in the FO chain connected to this link

Telegram format

Format of the analog data that is transferred in the telegram

Possible formats are integer, real and S5 real.

Characteristics for ibaPADU-16 and ibaPADU-32 modules

In contrast to former interface cards ibaFOB-F, ibaFOB-S and ibaFOB-X there is an additional property in the general settings of modules for ibaPADU-16 and ibaPADU-32 devices, called Link protocol.

This property can be set to “Auto”, “2.0 Mbit/s” or “3.3 Mbit/s”.

  • 2 Mbit/s: Suitable for older ibaPADU devices (S/N < 1000).

  • 3.3 Mbit/s: To be used for newer devices.

  • Auto: In this setting, the transfer rate is automatically detected and set at the start of the acquisition, provided that the device is active and connected to the link at the start of the acquisition.
Characteristics für SM64 module

Furthermore, there is another difference to the previous ibaFOB cards concerning the module SM64. The system interface card ibaLink-SM-64-io can be put into a SIMATIC S5 system. The ibaLink-SM-64-io will then send S5 real instead of standard IEEE 754 real. As the ibaFOB-D cards do not automatically convert from S5 reals to IEEE 754 reals, the data type must be set manually. If an ibaLink-SM-64-i-o module is connected to the ibaFOB-D card, the "S5 Real" setting is used in the selection list for the connection protocol (link mode).