Rockwell-automation 1771-DB Basic Module User Manual - Series A Uživatelský manuál stáhnout pdf (Strana 24)

Installing the BASIC Module

Chapter 3

3–10

The BAT LOW indicator should go out.

You can monitor the battery low condition in revision A and revision B

modules using a XBY(77B4H) statement. Bit 2 high indicates the battery

low condition.

With revision C modules use CALL 80 to monitor battery status.

3.5

Battery (continued)

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 166 167

1771–DB Basic 1
Allen-Bradley 1
Table of Contents 2
Table of Contents iii 4
Table of Contentsiv 5
Table of Contents v 6
Table of Contents vii 8
Using This Manual 9
Important information 10
Conventions 10
Introducing the BASIC Module 11
General Features (continued) 12
Hardware Features 12
Software Features 13
2.5 Specifications 14
Installing the BASIC Module 15
Chapter 3 16
Module Keying 17
Configuration Plugs 17
Module Installation 19
Initial Start-up Procedure 19
Module Status LED’s 20
Installing the User Prom 21
Electrostatic 23
Discharge 23
Battery (continued) 24
Using the Serial Ports 25
Chapter 4 26
Program Port 27
Connecting a T3/T4 Industrial 29
Terminal to the Program Port 29
Configuring the Software 31
Peripheral Port 32
Connecting A T30 Industrial 34
Terminal (1784-T30) to the 34
Peripheral Port (continued) 34
Connecting 36
RS-422 Devices 36
Assembly Parts 37
Argument 42
Control Stack 42
Description of Commands 43
Command: RUN 43
Command: CONT 44
Command: LIST 44
Command: LIST# or LIST 45
Command: Disabling Control C 46
Commands: RAM and ROM 48
[integer] (continued) 48
Command: XFER 49
Command: PROG 49
Command: PROG1 51
Command: PROG2 51
Statement: CLEARS 54
Statements: CLOCK1 54
READ – RESTORE 55
Statements: DAT 55
Statement: DIM 56
Statements: DO – UNTIL 56
[rel expr] 56
[rel expr] (continued) 57
Statements: DO – WHILE 58
Statements: GOSUB [ln num] 61
– RETURN (continued) 61
Statement: GOTO [ln num] 61
Statements: IF – THEN – 63
ELSE (continued) 63
Statement: INPUT 63
Statement: LD@ [expr] 65
Statement: LET 66
Statement: ONERR 67
[ln num) 67
Statement: ONTIME 68
[expr],[ln num] 68
[expr], [ln num] (continued) 69
Statement: PRINT or P 69
Special Print Formatting 70
Statements 70
Statements (continued) 71
Statement: PRINT# or P.# 73
Statements: 74
PH0., PH1. 74
PH0.#, PH1.# 74
Statement: PUSH[expr] 75
Statement: POP[var] 76
Statement: REM 77
Statement: STOP 79
Statement: STRING 79
Dual Operand (dyadic) 81
Operators (continued) 81
Unary Operators 82
Relational Expressions 86
Special Operators 87
Special Function Operators 87
System Control Values 89
Data Transfer Support 89
Routines 89
Enable Interrupts – CALL 9 92
Input Call Conversion 92
Output Call Conversion 94
Routines (continued) 94
Peripheral Port Support 96
Peripheral Port Support – 96
Parameter Set – CALL 30 96
Get Numeric Input 100
Character from Peripheral 100
Port – CALL 35 100
Port – CALL 35 (continued) 101
Chapter 5 102
Operating Functions 102
The ASC Operator 109
(continued) 110
The CHR Operator 111
String Support Calls 112
5.10.3.9 124
Reset the Peripheral Port 132
CALL 119 132
Programming 133
Chapter 6 134
PLC-2 Processor Program 135
PLC-3 Family Processors 137
PLC-5 Family Processors 140
Programming Tips 142
Data Types 143
6-digit, Signed 146
Fixed Decimal BCD 146
3.3-digit, Signed 147
Input Data Types 148
Editing A Procedure 149
Editing 150
Procedure 150
Chapter 8 150
Renumber (continued) 151
Editing a Simple 152
Procedure 152
Error Messages and Anomalies 153
Error Messages from 154
BASIC (continued) 154
Error Messages and 155
Anomalies 155
Chapter 9 155
String Support CALL 157
Error Messages 157
Anomalies (continued) 160
Quick Reference Guide 162
Appendix 163
Conversion Table 164
BASIC Module 166
Programming Hints 166
Worldwide representation 167

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