The device specified by the I/O path or the device selector is configured for a parallel poll response. If the computer is not the active controller an error is generated. The I/O path or device selector must refer to one or more IEEE-488 devices.
The configure byte is a numeric-expression rounded to an integer in the range zero to fifteen. The three least significant bits of its binary representation select the data bus line and the fourth bit selects the logical sense of the response.
The bus action is as follows: ATN, MTA, UNL, LAG, PPC, PPE.