Owner`s manual

M SERIES DAC
BASE UNIT AND MODULE OPERATION
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The Single Ended/Differential selection provides selection of single-ended or
differential operation. Single Ended mode allows 16 active channels and Differential
mode allows 8 active channels. The default Single Ended/Differential setting is
Single Ended mode.
ACTIVE CHANNELS
The Active Channels selection is used to enable individual input channels on the V77
ADM-1 for data acquisition. Single Ended mode allows up to 16 active channels and
Differential mode allows up to 8 active channels. The default Active Channels setting
has Channel 1 active and all other channels inactive.
DYNAMIC CONFIGURATION
You may enable or disable Dynamic Configuration for the V77 ADM-1. Dynamic
configuration mode allows non-verbose or "on-the-fly" configuration commands to be
issued to the V77 ADM-1. The default Dynamic Configuration setting is disabled.
DATA COMMANDS
You may issue V77 ADM-1 data commands through a host module to perform single
operations while temporarily overriding the module's current operating configuration.
Some data commands apply to all types of DAC modules, while others apply to
specific modules. Data commands may be entered repeatedly to get specific data
messages or to direct the V77 ADM-1's actions. You may issue a single data
command for action on multiple channels. Data commands must be used to obtain
data when using Command Reporting Method. V77 ADM-1 data commands are sent
through a host module using the following procedure:
1. Select the V77 ADM-1 from the host module by sending a select
sequence which consists of the port select code ($BT - default), the
appropriate unit number followed by a colon (01: to 30: - for
cascaded units only), the desired module number (2 to 16), and a
terminating character for <cr> (0D Hex). For example, to select an
V77 ADM-1 Module installed as Module 15 in a non-cascaded unit
using the default port select code, send $BT15<cr>.
2. Once the V77 ADM-1 is selected, it enters Command
Mode and allows you to send data commands. The V77
ADM-1 data commands begin with two capital letters
designating the specific command and are terminated
with <cr>. Most data commands also require a number