Owner`s manual

M SERIES DAC
BASE UNIT AND MODULE OPERATION
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OPERATING IN IMMEDIATE DATA MODE
Immediate data mode is similar to immediate mode. The primary difference is that
the immediate data mode does not wait for a message terminating character to send
data to the designated host module. Data is sent to the designated host module
automatically as soon as it is received by any port on the peripheral communications
module.
If you type "7" from the main configuration menu of a peripheral communications
module (Set Mode of Operation), the module will respond with the following menu:
MODE OF OPERATION
Full Duplex Mode 1
Immediate Message Mode 2
Command Mode 3
Immediate Data Mode 4
Current Mode of Operation is Full Duplex
Enter Mode of Operation 1-4 :
Type "4" from this menu to select immediate data mode.
NOTE: If immediate data mode is selected, the time tag will not be
appended to the data if Time Tagging is enabled.
OPERATING IN COMMAND MODE
Command mode provides multiplexing to a host module of messages or buffered data
from individual ports or all ports upon request from the host computer via data
commands. The host computer can request single messages, all messages, or all
current buffered data for individual ports. V74/V75/V87 data commands are sent
through a host module using the following procedure:
1. Select the 4-port serial module from the host module by sending the
port select code ($BT - default), the appropriate Unit Number
followed by a colon (1: to 30: - only if using cascaded units), the
desired module number (2 to 16), and <cr>. For example, to select
a V74 installed on a non-cascaded unit as Module 2 using the
default port select code, send $BT2<cr>.
2. Once the 4-port serial module is selected, it is placed into command
mode and allows you to send data commands. Data commands
consist of two capital letters designating the specific command, the
desired port number(s), and <cr>. If you have a requirement to
send the same command to multiple channels simultaneously, you