Appendix B
Using Models 707A and 708A compatibility mode
In this appendix:
Model A to Model B differences................................. B-1
Models 707A and 708A commands........................... B-3
Model A to Model B differences
You can use a Model 707B or 708B in an existing Model 707A or 708A application. The units are
compatible with the following exceptions:
•
Master/subordinate
operation is not supported.
•
The digital I/O is limited to twelve bits for all models.
•
Relay test is not supported.
•
Some commands operate differently (see
When using Model 707A or 708A compatibility mode, the only compatible remote interface is GPIB.
You can select one of two options when enabling Model 707A or 708A DDC compatibility mode:
•
70xA-VERSION
: This option most closely matches Model 707A or 708A operation. Use this
version if you are transferring applications directly from a Model 707A or 708A with few changes.
•
70xB-VERSION
: This options provides enhanced operation, including error checking and more
robust settling time operation. Use this version if you are updating existing applications.
To enable Model 707A or 708A DDC compatibility mode:
1. From the front panel, select
MENU
.
2. Select
DDC
.
3. Select
ENABLE
.
4. Select the version.
5. Press
ENTER
.
Cycle instrument power.
Front-panel relay closure indicators
When you are using Model 707A or 708A compatibility mode, the channel information is displayed on
the updated display. For information on the display, see
