SMB200-SMB549 Intelligent Module Status

SMB200 through SMB549 are reserved for status information provided by intelligent expansion modules, such as the EM 277 PROFIBUS-DP module. SMB200 through SMB249 are reserved for the first intelligent expansion module in your system (the one closest to your CPU); SMB250 through SMB299 are reserved for the second intelligent module. See documentation for your module.