GP485A TDK Corporation, GP485A Datasheet - Page 21

• Manufacturer Part Number: GP485A
• Description: GPIB CONTROLLER
• Manufacturer: TDK Corporation
• Series: ZUPr

Specifications of GP485A

• Accessory Type: Controller
• For Use With/related Products: ZUP Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4846340

4.13.5 GP485 initialize for using SRQ*
WRT$= “srq 16”+CHR$(13)
CALL IBWRT(GP485%, WRT$)
4.14 PARALLEL POLL
The GP485 sets the ist (individual status) bit whenever it asserts
unasserts
This means it cannot configure itself to respond to parallel polls. It must be configured remotely by an
external Controller.
4.14.1 Take Control (TCT)
This command has no effect on the GP485. It would not make sense for control to pass to the GP485,
since all programming messages and GPIB commands must be sent to it from another GPIB device.
4.14.2 Group Execute Trigger (GET)
This command has no effect on the GP485.
4.14.3 Go To Local (GTL)
This command has no effect on the GP485.
4.14.4 Device Clear
When the GP485 receives the universal Device Clear (DCL) command or when it receives It’s listen
address and the Selected Device Clear (SDC) command, it clears both it’s status buffer and it’s serial
port receive buffer. It also resets the GPIB serial poll response byte to zero and unasserts
SRQ
*. The GP485 implements IEEE 488 Parallel Poll (PP) interface function subset PP1.
‘and the serial device not addressed to talk
‘enable to assert
SRQ
* if the GP485 serial buffer not empty
SRQ
* and clears ist whenever it
SRQ*
.