252301 Issue 2.0.pdf - 第103页
GEM Manual for DEK Printers Equipment Va riables I ssue 2.0 June 9th, 2011 page 103 of 156 7 Equipment V ariables INTROD UCTION 7.1 EQUIPME NT CO NSTAN TS 7.2 STATU S VARIA BLES 7.3 DISCRETE DATA VARIA BLES 7.4 VARIABL E…
GEM Manual for DEK Printers SECS II Implementation
Issue 2.0 June 9th, 2011 page 102 of 156
B. Equipment Initiated - Not applicable.
GEM Manual for DEK Printers Equipment Variables
Issue 2.0 June 9th, 2011 page 103 of 156
7 Equipment Variables
INTRODUCTION 7.1
EQUIPMENT CONSTANTS 7.2
STATUS VARIABLES 7.3
DISCRETE DATA VARIABLES 7.4
VARIABLES FOR LIMITS MONITORING 7.5
PROCESS ATTRIBUTES 7.6
GEM Manual for DEK Printers Equipment Variables
Issue 2.0 June 9th, 2011 page 104 of 156
7.1 Introduction
A set of variable definitions is provided to enable the host to monitor and sometimes alter, the
behaviour of the equipment. These are known as machine variables.
Machine variables are divided into the following three categories.
Equipment Constants: Allow the host to modify certain aspects of the equipment’s
behaviour. See section 5.5 for a discussion on the use of EC’s.
Status Variables: As the name suggests, these variables track continuous system
status values. The host can interrogate the equipment at any time
and can programme the equipment to transmit values on a
regular schedule. The host can not change these values.
See section 5.2 for a discussion on data collection methods.
Discrete Data Variables: Are similar to Status Variables except that their values are valid
only when specific events occur. The host should not interrogate
these values, but should include them in reports linked to
collection events.
See section 5.2 for a discussion in on data collection methods.
Process Attributes: These variables are used to request name and value information
about the currently loaded printer product.
The machine variables are listed by category in the following sections.