Specifications

Advanced Configuration Features
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The I/O modules have the following island bus addresses (see page 44):
The PDM and the termination plate do not consume island bus addresses and are
not represented in the process image.
The Output Data Process Image
Let’s look first at the register allocation required to support the output data process
image (see page 110). This is the data written to the island from the fieldbus master
to update the output modules on the island bus. The four output modules are
affected—the three digital output modules at addresses 2, 4, and 6 and the one
analog output module at address 8.
I/O Model Module Type Island Bus Address
STB DDI 3230 two-channel digital input 1
STB DDO 3200 two-channel digital output 2
STB DDI 3420 four-channel digital input 3
STB DDO 3410 four-channel digital output 4
STB DDI 3610 six-channel digital input 5
STB DDO 3600 six-channel digital output 6
STB AVI 1270 two-channel analog input 7
STB AVO 1250 two-channel analog output 8