The S7 Request Decoder module allows acquisition of up to 32000 digital signals sent as a maximum of 1000 double words (32 bit). This module type is well suited for applications where large numbers of digital signals have to be acquired and the max. 1024 directly addressable digital values are not sufficient.
Configure a separate Request block call for each module.
General tab
For further information about module settings, see General module settings and General module settings.
Module-specific settings
Module structure – Number of decoders
Define the number of configurable decoders in the digital signal table. The default value is 32. The maximum value is 126. The signal table is adjusted accordingly.
Connection configuration
The connection for the S7 Request Decoder module is configured in the same way as the connection for an S7 Request module, see Connection settings.
The request modules of ibaNet-E have the following specific option in the Connection tab.
ibaPDA IP address
If multiple network cards are installed in the computer, specifiy here the ibaPDA IP address to which the controller should send data.
When using the Auto option, the system automatically uses the card that can reach the controller based on its IP address.
Digital tab
The signals are configured in the same way as for the ibaBM-DP device, see Digital tab.