IEEE 488.2 compatible Status Structures | Status reporting |
Status Byte Register - read with *STB?
read by Serial Poll
RQS
0
ESB
MSS
MAV
Comm. PRIM
T.O. ERR
0
SRQ IS
| read by *STB? |
RQS | the IEEE 488.1 Service Request Flag read by Serial Poll. |
MSS | the Master Summary Status is generated by performing a bit by bit AND |
| of the Status Byte and the Service Request Enable Register and then |
| ORing the resulting bits. |
ESB | the Event Summary Bit generation is described under Standard Event |
| Status Enable Register. |
MAV | the Message Available Status Bit is set when there is data in the Output |
| Queue. |
Comm. T.O | set when a communication time out event occurs. Cleared when the |
| TORST command is issued. |
PRIM_ERR | this is the Primary Status Summary Bit. |
SRQ_IS | this is the Channels Events Summary Bit. |
Service Request Enable Register - set with *SRE, read with *SRE?
0
0
ESB
MAV
Comm. PRIM
T.O. ERR
0
SRQ IS
The Service Request Enable Register has mask bits at positions corresponding to the status bits of the Status Byte. Unused bits are cleared.
The SRE Register is used for calculating the MSS and RQS flags.
Parallel Poll Enable Register - set with *PRE, read with *PRE?
0
0
ESB
MAV
Comm. PRIM
T.O. ERR
0
SRQ IS
The Parallel Poll Enable Register has mask bits at positions corresponding to the status bits of the Status Byte. Unused bits are cleared.
The PRE Register is used for calculating the IEEE 488.1 IST (Individual Status) message (as read by the Remote Controller during a Parallel Poll).
74 | XMP 2600 Programming Manual rev. 1.1 |
