Guildline 6530 Series, Руководство оператора

Страница: 92 / 158

Section 5
OM6530-C1-00
19 November, 2019
5-3
1. DAV (DATA VALID) is used to indicate the condition of (availability and
validity) information on the DIO signal lines.
2. NDAC (NOT DATA ACCEPTED)
3. NRFD (NOT READY FOR DATA) is used to indicate the condition of readiness
of devices to accept data.
4. SRQ (SERVICE REQUEST) is used by a device to indicate the need for
attention and to request an interruption of the current sequence of events.
5. REN (REMOTE ENABLE) is used (by a controller) in conjunction with other
messages to select between two alternate sources of device programming
data.
6. EOI (END OR INDENTIFY) is used (by a talker) to indicate the end of a
multiple byte transfer sequence or in conjunction with ATN (by a
controller) to execute a polling sequence.
7. ATN (ATTENTION)
8. IFC (INTERFACE CLEAR)
5.2.5. ADDRESS AND TALK/LISTEN SELECTION
The IEEE-488 Address and Talk/Listen status can be set using the front panel controls as
directed by the operator menu system. If there is no controller and the 6530 is hooked up
to a printer for hard copy then Talk Only mode should be selected as the preferred mode
of operation.
5.2.6. IEEE-488 ELECTRICAL INTERFACE
The 6530 meets the subsets of the IEEE-488 interface specification IEEE-488.1 shown in
Table 5-1. The pin connections on the IEEE-488 interface connector are shown in Table
5-2.
Pin Connection Name Function
Source Handshake SH1 complete source handshake capabilities.
Acceptor Handshake AH1 complete acceptor handshake capabilities.
Talker T5 has a talker capability with a single primary address in the range 0 to 30. Extended
addressing is not implemented. Talk only.
Listener L4 supports basic listener with unaddressed if MTA(My Talk Address) is received.
The talk and listen addresses will always be the same. Does not support extended
listen addresses. Does not support Listen Only.
Service Request SR1 complete service request generation capabilities.
Remote Local RL1 all functions on the front panel can be locked out by the IEEE-488 controller.
Parallel Poll PP0 no parallel poll capabilities.
Device Clear DC1 full device clear capabilities.
Device Trigger DT0 no device trigger capabilities.
Controller C0 can never become the bus controller.
Electrical Interface E2 all required electrical interface capability.
Table 5-1 : IEEE-488 Device Capabilities