Measurement-computing Micro 488/EX rev.2.1 Instrukcja Użytkownika Pobierz pdf (Strona 149)

Section 5 Command Descriptions

5.79

STATUS

is a system command which is useful for determining which mode the

Micro488/EX is in, its current address or the type of

ERROR

that has occurred. At

power-up, issuing the

STATUS

command will cause the Micro488/EX to return the

string...

CONTROLLER 10

After issuing a

PASS CONTROL

PERIPHERAL

command the Micro488/EX

will respond with...

PERIPHERAL 10

PASS CONTROL

was issued and the Micro488/EX then receives control again

it will respond with....

CONTROLLER 10

This is useful for checking when control is returned after a

PASS CONTROL

has

been issued.

If an ERROR has occurred, as indicated on the front panel of the Micro488/EX,

issuing the

STATUS

command will cause an error message to be returned to the host.

Once the error message is sent by the Micro488/EX the error condition is cleared.

Refer to Appendix B for error message explanations.

The Micro488/EX also includes and extended status command,

STATUS

. The

STATUS

command returns various items detailing the current state of the

Micro488/EX. They are returned as one long character string as follows:

Item Starting Col. # Cols. Values

Operating mode 1 1 C: Controller

P: Peripheral

Bus address 3 2 Two-digit decimal number 00 to 30

1 2 ... 144 145 146 147 148 149 150 151 152 153 154 ... 217 218

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Measurement-computing Micro 488/EX rev.2.1 Instrukcja Użytkownika Strona 149