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Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 5
both full and half step modes.(requires 2 or 4 channels)
The logical sense of input and output channels can be configured as inverted
or normal.
Input-configured channels have individually programmable threshold levels
that can range from -46V to +46V.
Identifying the Plug-on (IMPORTANT)
There are two versions of the E1538A. The early version does not support a
PERiod measurement command set. Early versions have ROM revision
February 1998 and earlier. The later version adds period measurement, and
an improved frequency measurement function. The later versions have ROM
revision after February 1998.
In order to access the additional functions of the later E1538A, you must use
one of the following drivers:
• The Plug & Play driver with revision A.02.07 or later
• The Command Module driver with revision A.05.11 or later
To determine the driver revision, execute the *IDN? command.
Figure 1. Identifying the SCP and its ROM Revision