User manual

2400 Series SourceMeter
®
User’s Manual Table of Contents
Front panel GPIB operation ........................................................ 14-5
Error and status messages ................................................... 14-5
GPIB status indicators .......................................................... 14-5
LOCAL key ........................................................................... 14-6
Programming syntax ................................................................... 14-6
Command words ................................................................... 14-6
Query commands ................................................................. 14-9
Case sensitivity ..................................................................... 14-9
Long-form and short-form versions ....................................... 14-9
Short-form rules .................................................................. 14-10
Response messages .......................................................... 14-12
Message exchange protocol ............................................... 14-13
RS-232 interface operation ....................................................... 14-13
Sending and receiving data ................................................ 14-13
Baud rate ............................................................................ 14-14
Data bits and parity ............................................................. 14-14
Terminator ........................................................................... 14-14
Flow control (signal handshaking) ...................................... 14-15
RS-232 connections ........................................................... 14-15
Error messages .................................................................. 14-17
15 Status Structure
Overview ..................................................................................... 15-2
Status byte and SRQ ............................................................ 15-2
Status register sets ............................................................... 15-2
Queues ................................................................................. 15-2
Clearing registers and queues .................................................... 15-4
Programming and reading registers ............................................ 15-5
Programming enable registers .............................................. 15-5
Reading registers .................................................................. 15-6
Status byte and service request (SRQ) ....................................... 15-7
Status byte register ............................................................... 15-8
Service request enable register ............................................ 15-9
Serial polling and SRQ ......................................................... 15-9
Status byte and service request commands ....................... 15-10
Status register sets .................................................................... 15-11
Register bit descriptions ..................................................... 15-11
Condition registers .............................................................. 15-16
Event registers .................................................................... 15-16
Event enable registers ........................................................ 15-17
Queues ...................................................................................... 15-18
Output queue ...................................................................... 15-18
Error queue ......................................................................... 15-19