THM1176/TFM1186 Use
r’s Manual
v 2.0 r 1.0
– 02/20
Copyright © 2020 Metrolab Technology SA
www.metrolab.com
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Event Enable Register
A mask indicating what bits in the Event Register are included in the
Summary bit. The enable mask of the Status Byte is called the Status Enable
register, and it determines which bits cause an RQS (ReQuest for Service).
5-4 USBTMC-USB488 CONTROLS
The following functions are supported directly by the USBTMC-USB488 protocol.
Historically, these correspond to dedicated hardware signals in IEEE 488.1 (HPIB
or GPIB).
Command
Description
INITIATE_CLEAR
Clears the device input and output buffers
TRIGGER
Assert bus trigger
SRQ
Requests service from host
READ_STATUS_BYTE
Read status byte
REN_CONTROL
Remote Enable (no effect)
GO_TO_LOCAL
Enable local controls (no effect)
LOCAL_LOCKOUT
Disable local controls (no effect)