Remote interface operations, 1 pass/fail output via usb connector – BNC 1105 Universal Counter User Manual

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5

Remote Interface Operations


The MODEL 1105 supports three interfaces for remote access: USB, LAN
and GPIB (IEEE-488). USB and LAN are built in the MODEL 1105. GPIB is
available as an optional interface card. In addition to setting up the
interfaces, this Chapter lists the SCPI (Standard Commands for
Programmable Instrument) commands available for controlling the
MODEL 1105 remotely. For the new users to apply SCPI commands,
please refer to Appendix C for more information.

※ Note: The 1105 uses LAN port 5024 for Telnet sessions.

Telnet session can typically be started as follows from a host
computer shell:
telnet <IP_address> <port>
For example:
telnet 192.168.0.100 5024

5.1 Pass/Fail Output via USB Connector

The USB connector on the rear panel of MODEL 1105 is a series “B”
connector. When users press the Limit Modes button and the softkey
under OUT* to toggle to USB, the internal pass and fail TTL output signals
(limit testing) will be transmitted via the USB port.

The pass and fail signals are low true and indicate the Math Pass/Fail
Limit Test result for the next reading to be output to the GPIB interface.
The signals are active low for approximately 2ms (

±

100

µ

sec) for each

reading taken. Figure 5-1 shows the USB connector (series “B”).

Contact

Number

Signal Name

Typical Wiring

Assignment

Description

1

VBUS

Red

Floating

2

D-

White

Limit Test Pass

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