IBA ibaFOB-TDCexp Interface Card for SIMATIC TDC

Introduction

Application

The ibaFOB-TDCexp card couples the iba Process Data Acquisition system ibaPDA with

the Siemens control system SIMATIC TDC. To achieve this, the ibaFOB-TDCexp card

must be connected to one of the free ports of the CP52IO (GDM Interface Module of the

SIMATIC TDC).

The CP52IO realizes the access to the GDM memory card CP52M0. Using a fiber optic

link the TDC racks are connected to the CP52IO via the CP52A0 card. Up to 44 TDC

racks can be connected to the GDM in total. For the TDC system, the ibaPDA PC with

an ibaFOB-TDCexp card acts like a TDC rack, the ibaFOB-TDCexp card acts like a

CP52A0 card.

This topology enables the ibaPDA system with an ibaFOB-TDCexp card to communicate

notionally with every processor in one of the connected TDC racks (max. 43).

Characteristics

The card has the following characteristics:

 PCI Express card for 1.0-x1 compatible slot

 100 % functional compatible with the predecessor ibaFOB-TDC

 Firmware update without dismounting the card

 Bidirectional fiber optic link with 640 Mbit/s

 Absolutely noise free acquisition of process data

 Enhanced SIMATIC TDC system diagnostics

 Display for card id, processor and link status via 7-segment display and LEDs

 Up to 4 PCIe cards per PC

 Plug and play installation

 All component parameters are 100% controlled by software. No wiring or jumpering

is necessary for that card.

Operational modes

To measure SIMATIC TDC system numeric and binary values must be transported be

tween the TDC system and the PC, which means that internal variables of the TDC sys

tem may be visualized and recorded. For recording purposes two different software pack

ages are supported by the ibaFOB-TDCexp card:

 SD-TDC-lite:

All values to be measured by ibaPDA have to be manually programmed in CFC

charts of the control unit. Changes of signals require a change in this chart. Up to

16 process telegrams are to be defined per card which transport the values to

ibaPDA containing 32 analog plus 32 digital variables each. Structure and length of

the process telegrams are determined by ibaPDA. Up to 4 cards in a PC are sup

ported by ibaPDA.

In addition the ibaPDA-Technostring (non-structured ASCII-string with a length of up

to 512 bytes) can be configured.

 SD-TDC-Request:

The definition of the signals to be measured is independent of the connected con

trol unit system. All changes are done in ibaPDA. ibaPDA supports the functionality

to select the internal TDC variables by their names, i.e. the chart, function block and

the connector names. To do that for every TDC CPU special service function blocks

must be included in the CFC chart of the control unit.

The information about the variable names (address books) is transferred from the

TDC CPU to the ibaPDA system directly via the ibaFOB-TDCexp card.

ibaPDA supports up to 4 cards with up to 50 processor connections per card and

additionally, the ibaPDA-Technostring.