Remote Control
Tunable Laser Source
37
Standard Status Data Structure
Note:
EOS means “End of String”. EOI means “End or Identify”.
Standard Status Data Structure
Figure 7-1 on next page illustrates the four common Status and Enable
registers as defined by IEEE 488.3. This diagram is a useful aid in
understanding the general commands and how a service request (SRQ) is
generated. The four registers are
➤
Standard Event Status Register (ESR)
➤
Standard Event Status Enable Register (ESE)
➤
Status Byte Register (STB)
➤
Service Request Enable Register (SRE)
For RS-232 Communication
EOS bytes
0Ah
Stop bits
1 bit
Baud rate
9600 bps
Flow control
None
Parity
None
Activation
see Section
Data bits
8 bits
Table 7-2.
RS-232 Communication Parameters
Bit
ESR
ESE
STB
SRE
0
Operation
Complete
Operation
Complete
Source Status
Source Status
1
Request Control Request Control N/A
N/A
2
Query Error
Query Error
Error Bit
Error Summary
Bit
Table 7-3.
Standard Registers (Part 1 of 2)
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