ETS-Lindgren 2090 Controller - Manual (Page 88)

Using the GPIB Command Set with the Model 2090 Model 2090 Multi-Device Controller
As long as bits are set in this register, any commands
related to device motion or position settings will generate
an execution error. See the “Standard Event Status
Register” information on the next page.
The Standard Event Status Enable Register allows the
bits of the Standard Event Status Register to set the ESB bit
of the Status Byte Register. The bit pattern of this register
corresponds to that of the Standard Event Status Register.
The ESB bit of the Status Byte Register will be TRUE
whenever any of the bits in the Standard Event Status
Register and the corresponding bit in the Standard Event
Status Enable Register are both TRUE. Otherwise, the
ESB bit is FALSE. The ESE GPIB command is used to set
the value of the register and the ESE? command is used to
query the current setting.
The Standard Event Status Register is an IEEE 488
Standard Register which reports various device events and
error conditions. The bit pattern of this register is as
follows:
Bit Name Description
0 - Operation
Complete
Set when the Operation Complete has
been armed by issuing *OPC and the
device motion has stopped.
1 - Request
Control
Unused. The Model 2090 does not have
controller capability
2 - Query Error Set when an attempt is made to read
from the output queue when it is empty.
3 - Device
Dependent
Error
Set when a device dependent error
occurs, regardless of the ERE value.
These errors correspond to front panel
error conditions.
4 - Execution
Error
Set when a valid GPIB command is
received with parameters that are out of
88 © ETS-Lindgren– April, 2006
Revision G– P# 399199