Chapter 3. — PC Control using IEEE-488
Commands and Programming
Control of a Dynaload through a Personal Computer
You must have an IEEE 488 communications card installed in your computer. (National
Instruments card or the equivalent).
1.Install following the manufactures recommended procedure for the card and software.
2.The loads IEEE address is set to 10 by default.
3.Connect the IEEE cable from the PC to the Load.
4.Labview drivers can be downloaded from our website :
Introduction
The purpose of this section is to describe the IEEE-488 commands for operating your
programmable Dynaload. This section assumes that your XBL has been installed, is operating
properly, and that an IEEE-488 bus controller has been attached to it. It is also assumed that the
IEEE-488 address and terminator has been set through the front panel menu selections. Be sure
to read
, especially the
Operator Safety Instructions
section, before
proceeding. Note that all commands operate identically via the RS232 or Ethernet interfaces.
IEEE-488 Bus Subsets
The programmable Dynaload has the IEEE-488 bus subset capabilities indicated in Table I.
Table I. Bus Subset Capabilities
Subset
Categor
y
Response
Acceptor Handshake
AH1
Full capability - the load can generate the handshake for
receiving data.
Source Handshake
SH1
Full capability - the load can generate the handshake for
transmitting data
Talker
T6
The load can:
A. Transmit data
B. Not be a talker and a listener at the same time.
Listener
L1
The load can:
A. Receive data
B. Not be a talker and a listener at the same time.
Service Request
SR1
The load will set the SRQ line if there is an enabled
service request condition. Serial poll is not available
Remote Local
RL1
The load can be switched to local operation.
Parallel Poll
PPO
No capability.
Device Clear
DC1
The Dynaload responds to device clear (DCL) and
selected device clear (SDC) commands according to
IEEE-488.2 specifications.
Device Trigger
DTO
No capability.
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