Instruction manual

Chapter 3 Programming Your Counter for Remote Operation
Programming the Counter for Status Reporting
Programming Guide 3-41
3
Programming the Counter for
Status Reporting
Determining the Condition of the Counter
The Counter has status registers that are used to indicate its condition.
There are four register groups that can be examined individually, or used
to alert a computer. These registers, shown in Figure 10, are:
• Operation Status Register Group
• Questionable Data/Signal Register Group
• Standard Event Status Register Group
• Status Byte Register Group
The first three groups all have event registers that can be fed into the
Status Byte Register. The Status Byte Register can be used to assert the
SRQ line and thus alert the computer that the Counter needs attention.
The following examples show how each of the register groups can be used.
(Figure 3-14 is a flowchart that shows how to program the Counter for
Status Reporting.)