User`s manual

XP8300/XP8400/SE1100 PLCBus s 65
 void set16adr( int adr )
Sets the current address for the PLCBus. All read and write operations
access this address until a new address is set.
PARAMETER: adr is a 16-bit physical address. The high-order
nibble contains the value for the expansion register, and the remaining
three 4-bit nibbles form a 12-bit address (the first and last nibbles must
be swapped).
LIBRARY: DRIVERS.LIB.
 void set12adr( int adr )
Sets the current address for the PLCBus. All read and write operations
access this address until a new address is set.
PARAMETER: adr is a 12-bit physical address (three 4-bit nibbles)
with the first and third nibbles swapped.
LIBRARY: DRIVERS.LIB.
 void eioPlcAdr4( unsigned addr )
Specifies the address to be written to the PLCBus using only cycle
BUSADR2.
PARAMETER: addr is the nibble corresponding to BUSADR2.
LIBRARY: EZIOPLC.LIB, EZIOPLC2.LIB, EZIOMGPL.LIB.
 void set4adr( int adr )
Sets the current address for the PLCBus. All read and write operations
access this address until a new address is set.
A 12-bit address may be passed to this function, but only the last four
bits will be set. Call this function only if the first eight bits of the
address are the same as the address in the previous call to set12adr.
PARAMETER: adr contains the last four bits (bits 811) of the
physical address.
LIBRARY: DRIVERS.LIB.
 char _eioReadD0( )
Reads the data on the PLCBus in the BUSADR0 cycle.
RETURN VALUE: the byte read on the PLCBus in the BUSADR0
cycle.
LIBRARY: EZIOPLC.LIB, EZIOPLC2.LIB, EZIOMGPL.LIB.