Rockwell-automation 1771-OFE/B Analog Output Module User Manual Manual do Utilizador descarregar pdf (Página 19)

2-5

Publication 1771Ć6.5.30 - November 1998

Figure 2.1

LAST STATE Configuration Jumper

Last State Output Level

Configuration Jumpers

MIN

MID

MAX

Front of Circuit Board

HOLD LAST STATE

Table 2.A lists the output ranges and their minimum, maximum, and

middle values.

Table 2.A

Output Last State Configuration Values

Output Range

Selection

Minimum

Value

Middle Value

Maximum

Value

4Ć20mA 4mA 12mA 20mA

0Ć50mA 0mA 25mA 50mA

1Ć5V 1V 3V 5V

0Ć10V 0V 5V 10V

+10V Ć10V 0V +10V

These output conditions are active only if the following conditions

exist:

• the module faults

• the processor is in the PROGRAM or TEST mode

• rack switch 1 is in the reset position

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 83 84

  1
 1
Important User Information 2
   3
SOC-2 Summary of Changes 4
Manual's Purpose 5
Audience 5
Vocabulary 5
Manual Organization 5
Related Products 6
Product Compatibility 6
Related Publications 6
   7
Chapter 4 8
Chapter 5 8
Chapter 6 8
Chapter 7 8
Specifications 9
Block Transfer with 9
MiniĆPLCĆ2 and PLCĆ2/20 9
Processors 9
Table of Contents 10
Overview of the Analog Output 11
How Analog Modules 13
Communicate with 13
Programmable Controllers 13
Accuracy 13
Chapter Summary 13
  15
Calculating Power 16
Requirements 16
Determine Module 17
Location in the I/O Chassis 17
Setting Module 17
Configuration Jumpers 17
• the module faults 19
Install the Keying Bands 21
Install the Module and Field 22
Wiring Arm 22
Connect the Wiring 23
Ground the Chassis and 24
Interpreting the Indicator 25
Configuring Your Output 27
Configuration Word 29
Default Configuration 30
Data Format 30
Scaling Value Polarity 32
Figure 3.3 33
Procedure for Configuring 35
Your Module 35
  37
Block Transfer 38
Programming Ć PLCĆ2 38
Family Processors Only 38
PLC-2 Family Example Program 39
Table 4.A 40
Data Table Map 40
Data Table MAP (128Ćword) 40
Table 4.B 41
PLCĆ2 Family Data Table Word 41
Programming Ć PLCĆ3 42
Figure 4.4 43
Programming Ć PLCĆ5 44
Other Programming 46
Considerations 46
Timer/Counter 48
Accumulated Values 48
System Expansion 49
Recommendations Ć PLCĆ2 49
Processors Only 49
     51
Calibrating Your Output 53
Voltage Output Version 54
(1771ĆOFE1) 54
Figure 6.1 55
Figure 6.2 55
Figure 6.3 56
Current Output Version 57
(1771ĆOFE2) 57
Channel Calibration 58
Figure 6.5 59
Figure 6.6 60
Location of Resistor Pots 60
Table 6.C 60
Resistor Pots 60
(1771ĆOFE3) 61
Figure 6.7 62
Diagnostics and 65
Troubleshooting 65
Read Block Transfer 66
Status Words 66
 69
Appendix 71
Rungs 2 and 3 72
Rung Summary 72
Setting the Block Length 73
(Multiple GET Instructions 73
Data Table Formats 75
SignedĆmagnitude Binary 76
Two's Complement Binary 77
Table of Contents 80
AllenĆBradley 81
Publication Problem Report 81
BUSINESS REPLY MAIL 82
Support Services 83
Worldwide representation 84

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