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Publication No. 980673-055 Rev. A
General
Information
PC (MXI)
EADS North America Test and Services
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The 1260-22 may be operated either in message-based mode or in
register-based mode.
When the message-based mode of operation is used, commands
are sent to the 1260-01T command module.
command module interprets the commands, and operates the
1260-22 module by sending 8-bit bytes to control registers on the
1260-22 module.
A conceptual view of the message-based mode of operation is
shown in Figure 3-1 below.
"CLOSE (@7(1))"
VXIbus
Figure 3-1, Message-Based Mode of Operation
When the register-based mode of operation is used, the user
writes to the control register on the 1260-22 module directly. The
1260-01T command module does not monitor the operations, and
does not track the state of the relays on the module in this mode.
A conceptual view of the register-based mode of operation is
shown in Figure 3-2 below.
Write value 2 to A24 Address 205001
PC (MXI)
Figure 3-2, Register-Based Mode of Operation
Since the 1260-01T command module does not monitor the
register-based mode of operation, it is advisable to select either
the message-based or the register-based mode of operation, and
continue to use the same mode throughout the application
program.
MODULE OPERATION
Write value 2 to A24 Address 205001
1260-01T
Module Operation 3-1
1260-22 User Manual
Chapter 3
The 1260-01T
1260-22
1260-120
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