allen bradley equivalent in siemens S7-200

[mos89]

Hi I am looking for siemens equivalent to AB IOM instruction: IOM: Description This output instruction allows you to update outputs prior to the normal output scan. When the IOM instruction is enabled, the program scan is interrupted to transfer data to a specified I/O slot through a mask. The program scan then resumes. The IOM operates on the physical outputs assigned to a particular word of a slot (16 bits maximum). For the mask, a (1) in an output’s bit position passes data from the source to the destination. A (0) inhibits data from passing from the source to the destination. Note Expansion I/O is not permitted with the IOM instruction.

[Crossbow]

Look in the S7-200 System Manual at section 6 for bit logic. It covers immediate inputs and outputs.