Bird Technologies 6091P - Manuale (Pagina 57)

Status Byte Format
A typical status byte (binary, 8-bit string) for the Calorimeter is shown in figure 19
with a list of the associated status bit messages. When a status bit is set to one
(1=true), the condition indicated by the message is valid. When the status bit is aero
(0=false), the condition is not valid.
CAUTION
During remote operation, periodically monitor the bus service request line. Failure to detect
the service request can result in major equipment damage.
45
Remote Operating Procedures
Writeable Store (WSxxxxxx)
Function Temporary storage for six bytes of ASCII data.
Remarks All six bytes need to be sent each time.
Data stored is lost when the Calorimeter is turned off.
On power up and after DCL or SDC, storage is filled with ASCII null characters
(00 hex).
Statements National GPIB-PCII HP 200/300
Let CMD$="FL" OUTPUT 724; "FL"
CALL IBWRT (UD%,CMD$)
0 1 0 1 0 0 0 0 Shows service required due to low coolant level
Bit: Message:
0 Command error
1 Flow error
2 ∆
T above 8.500°C
3 Command Complete
4 Low coolant level
5 Coolant temperature above 41.6°C
6 Require Service
7 Not Used
Figure 19
Status Byte