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TLS 216 Programmer Manual
C–1
Appendix C: Internal Specifications
This appendix describes details of the GPIB remote interface of the logic scope.
Normally, you will not need this information to use the logic scope, but the
information is useful when connecting to controllers of unusual configuration.
GPIB Function Subsets
The logic scope supports many GPIB function subsets, as listed below. Some of
the listings describe subsets that the logic scope does not support.
H SH1 (Source Handshake). The logic scope can transmit multiline messages
across the GPIB.
H AH1 (Acceptor Handshake). The logic scope can receive multiline messages
across the GPIB.
H T5 (Talker). The logic scope becomes a talker when its talk address is sent
with the ATN (Attention) line asserted. It can send both response data and
status information when responding to a serial poll. It ceases to be a talker
when another device’s talk address is sent with ATN asserted. The logic
scope has talk-only capability for hardcopy operation.
H L4 (Listener). The logic scope becomes a listener when its listen address is
sent with the ATN (Attention) line asserted. The logic scope does not have
listen-only capability.
H SR1 (Service Request). The logic scope asserts an SRQ (Service Request)
line to notify the controller when it requires service.
H RL1 (Remote/Local). The logic scope responds to both the GTL (Go To
Local) and LLO (Local Lock Out) interface messages.
H PP0 (Parallel Poll). The logic scope has no parallel poll capability. It does
not respond to the following interface messages: PPC, PPD, PPE, and PPU.
The logic scope does not send out a status message when the ATN (Atten-
tion) and EOI (End or Identify) lines are asserted simultaneously.
H DC1 (Device Clear). The logic scope responds to the DCL (Device Clear)
and, when made a listener, the SDC (Selected Device Clear) interface
messages.
H DT1 (Device Trigger). When acting as a listener, the logic scope responds to
the GET (Group Execute Trigger) interface message.
H C0 (Controller). The logic scope cannot control other devices.