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Chapter 5, Advanced Operations
HP-IB Service Requests
Example
OUTPUT 714;"*SRE 18"
NOTE: The decimal value of the bit pattern must be a positive integer in the range of 0 to 255.
Sending a negative number or a number greater than 255 causes an
HP-IB Error: -222 Data out of range.
Clearing the Service Request Enable Register
The Service Request Enable Register is cleared by sending the *SRE Common
Command with a decimal value of zero. Clearing the Service Request Enable
Register turns off service requests.
Table 26 Determining the Service Request Enable Register Bit Pattern
Bit Position
765 43210
Logical Value
0 X 0 1 0 0 1 0 X = ignored by the Test Set
Binary Weighting
128 X 32 16 8 4 2 1 X = ignored by the Test Set
Decimal Value
0+ 0+ 0+ 16+ 0+ 0+ 2+ 0 = 18
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