Hitachi SV.LINK User Manual page 73

5 PROGRAMMING
(3) Local station transmission/reception start address setup areas
The areas for setting the transmission/reception start address of the local station are indicated
below. Up to four areas can be specified for each of transmission and reception. Perform
setup so as to meet the requirements.
Register
number
BD010
BD011
BD012
BD013
BD014
BD015
BD016
BD017
BD018
BD019
BD01A
BD01B
BD01C
BD01D
BD01E
BD01F
(*) The simultaneous use of bit and word registers is an allowable practice. For the
procedure for specifying the transmission/reception areas, see item (6).
Although the parameters are checked at startup, they are not checked for a
duplicate of areas 1 through 4 and transmission/reception areas. The user
should exercise area management so as to avoid area duplication. Also, note
that crossover use of registers is not checked for (the crossover use of
registers means that, if, for instance, a 16-word transmission beginning with
YFC0 is specified, the areas YFC0 through YFFF and Q000 through Q0BF
would be actually transmitted). To prevent unexpected operations, you
should perform setup so as to avoid the crossover use of registers.
I/O data transmission/reception cannot be invoked simply by setting the above
areas. For the transmission/reception of I/O data, it is necessary to complete
word count setup as indicated in item (5), "Transmission/reception word count
setup areas."
Area name
Cyclic transmission area 1
Cyclic transmission area 2
Cyclic transmission area 3
Cyclic transmission area 4
Cyclic reception area 1
Cyclic reception area 2
Cyclic reception area 3
Cyclic reception area 4
Reserved for future use
Reserved for future use
Reserved for future use
Reserved for future use
Reserved for future use
Reserved for future use
Reserved for future use
Reserved for future use
Bit registers: X, Y, J, Q, R, M, G, and
Word registers: DW and FW registers
(*)
To be fixed at 0.
To be fixed at 0.
To be fixed at 0.
To be fixed at 0.
To be fixed at 0.
To be fixed at 0.
To be fixed at 0.
To be fixed at 0.
NOTICE
5-8
Setting range
E registers