User`s manual
XP850018 s Getting Started
4. Each expansion board comes with a factory-default board address. If
more than one expansion board of each type is to be used, be sure to
set a unique address for each board.
The following section on Setting Expansion Board Ad-
dresses, and Chapter 4, Software Reference, provide details
on how to set and use expansion board addresses.
5. Power may be applied to the controller once the controller and the
expansion boards are properly connected using the PLCBus ribbon
cable.
See Appendix D, Simulated PLCBus Connection, for details
on the special connections that enable XP8500 expansion
boards to be used with BL1400 and BL1500 controllers.
Setting Expansion Board Addresses
Z-World has established an addressing scheme for the PLCBus on its
controllers to allow multiple expansion boards to be connected to a
controller.
Remember that each expansion board must have a unique
PLCBus address if multiple boards are to be connected. If two
boards have the same address, communication problems will
occur that may go undetected by the controller.
XP8500 Addresses
XP8600 expansion boards are shipped from the factory with no pins on
header J4 or J5 connected. Four different PALs are available. There are
four different ways to configure the pair of pins on header J4 and J5, and
so up to 16 XP8500s may be addressed individually over a single PLCBus.
See Chapter 4, Software Reference, for further details on
how to determine the physical address for XP8500 expansion
boards based on whether the pins on header J4 or header J5 are
connected.
Power
Z-Worlds expansion boards receive power from the controller over the
+24 V line of the PLCBus. An onboard regulator converts this to the +5V
reference used by the XP8500. The XP8500 draws 32 mA at +24 V.
The XP8500 may be used with +12 V controllers without having any
modifications.
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