Owner`s manual

sequence to the host module. The select sequence

consists of the port select code (default = $BT), the

desired module number (1 to 16), and a terminating

character of Carriage Return (0D Hex) or Line Feed (0A

Hex). Once an I/O module is selected, you can send

commands which are summarized in the following

sections.

IMPORTANT: If a module is selected, the user must

disconnect by sending the Port Select Code and Carriage

Return or Line Feed before any module using Immediate

or Schedule Reporting Method will resume sending

messages to the designated host module.

1.4.2 V77 ADM-1 DATA COMMANDS AND

DATA PRESENTATION

The V77 ADM-1 channel digitizes analog voltages from 1

to 16 input channels and formats the data into a

message which is sent to the designated host module

automatically or upon request. Each message can be

presented in ASCII hexadecimal, decimal, or voltage

format and is preceded by the unit:module,channel

number from which the message came. The message

can be optionally appended with a Time Tag showing

the date and time the message was recorded.

The table below summarizes the commands supported

by the ADM-1. Please see the V77 ADM-1 operator's

manual for a more detailed operational description of

the supported commands.

V77 ADM-1 COMMAND SUMMARY

Command Description

CA n<cr> (n=0 or 1 to 3) Calibrate. 0=all, 1=25%, 2=50%, and 3=75% of

Full Scale (FS). Initiates auto-calibration. ADM-1

tests for offsets and makes necessary corrections.

Corrections are continually applied to all reported