Rockwell Automation 57C428 Toledo Scale Interface Module - Manual (Page 17)

4Ć1
4.0 PROGRAMMING
This section describes how data is organized in the module and
provides examples of how the module is accessed by the application
software. For more detailed information refer to the AutoMax
Enhanced BASIC Language Instruction Manual (JĆ3675).
4.1 Register Organization
The Toledo Scale Interface module contains a dual port memory that
can be accessed by your application software as well as the
microprocessor that controls the module. The dual port memory
contains the control and status information as well as the Toledo
Scale data. See figure 4.1 for the dual port memory map.
Register 0
through
Register 39
Register 64
through
Register 77
Status and Control
Toledo Scale Data
Figure 4.1Ć Dual Port Memory Organization
4.1.1 Status and Control Registers
Use the status and control registers to configure the serial
communication port and then monitor its operation. All registers are
readĆonly with the exception of registers 20Ć39.
Register 4 contains the link configuration status. It will be set to 1"
after you have properly configured the module. Refer to figure 4.2.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 bits
register 4 - - - - - - - - - - - - - - - R
ąą ąLink Status
0 Ć not configured
1 Ć configured
Figure 4.2Ć Status and Control Registers