Rockwell Automation 57C610 Enhanced Basic Language, AutoMax - Manual (Page 104)

7Ć16
slave_reg is a variable name or expression of type string
representing the starting register in the device that is to be read
from or written to. The format of this parameter is dependent on
the module used. See the instruction manual for the specific
Interface module for the correct format.
master_var is a variable name or expression of type double
integer, representing the actual hexadecimal address of the first
location that is to be read from or written to in the Interface
module. See below for more information.
num_regs is variable name or expression of type integer that
defines the number of bits or registers (16 bits each) to be
transferred; cmd_code determines whether the variable
represents bits or registers. Note that if you are transferring
double integer (32Ćbit) variables, the număregs parameter must
specify the number of 16Ćbit variables to move. For example, if
you want to move two double integer variables starting at
address 270480H, număregs must be equal to 4.
The masterăvar parameter can be specified using any one of the
three methods described below.
1. The absolute hexadecimal address of the first bit, integer, or
double integer on the Interface module to be read or written. For
example:
270480H
2. A variable name which represents the absolute hexadecimal
address of the first bit, integer, or double integer on the Interface
module to be read or written. Typically, the VARPTR! function is
used to yield the absolute address. For example, if in your task
you define the following:
ADDRESS! = VARPTR! (FIRSTăREG%)
then you can use ADDRESS! as the masterăvar parameter. This
assumes that FIRSTăREG% has been defined as a 16Ćbit integer
variable on the Interface module
3. An expression which, when solved, will yield an absolute
hexadecimal address of the first bit, integer, or double integer to
be read or written. For example, the masterăvar parameter could
be:
VARPTR! (FIRSTăBIT@)
where FIRSTăBIT@ has been defined as a boolean on the
Interface module.
For more detailed information, see the instruction manual for each
specific Interface module.
7.36 VARPTR! Function
Format:
VARPTR!(variable)
where:
variable is a common boolean (single bit), integer (16 bits), or
double integer (32 bits) defined in the configuration as the