Allen-Bradley 1794ASB Series B - Page 48

Allen-Bradley 1794ASB Series B

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Table of Contents

Table of Contents5
Specifications8
Using this Manual8
Preface Objectives8
Audience8
Vocabulary8
What this Manual Contains8
Conventions9
For Additional Information9
Summary9
Overview of FLEX I/O and Your Remote I/O Adapter Module10
Chapter Objectives10
The FLEX I/O System10
How FLEX I/O Modules Communicate with Programmable Controllers11
Hardware Components12
- Diagnostic Indicators12
- Reset Pushbutton13
- Remote I/O Wiring13
- Power Wiring13
- Address Switch Assemblies13
Chapter Summary13
Installing Your Remote I/O Adapter Module14
Chapter Objectives14
European Union Directive Compliance14
- EMC Directive14
- Low Voltage Directive14
Power Requirements15
Mounting the Remote I/O Adapter15
- Mounting on the DIN Rail15
- Mounting on a Wall or Panel16
Wiring18
Setting the Switches19
- Starting I/O Group19
- I/O Rack Number19
- Hold Inputs19
- Last Chassis19
- Reply Delay19
- Communication Rate20
- Processor Restart Lockout20
- Hold Last State20
Communicating with FLEX I/O Modules24
Chapter Objectives24
Hardware Addressing24
Determining Rack Size25
Mapping Data into the Image Tables27
- Discrete I/O Modules27
- 16 Point Discrete Input Module Image Table Mapping - 1794 IB1628
  - Input Delay Times for the 1794 IB16 Input Module28
- Point Discrete Output Module Image Table Mapping - 1794 OB1629
  - Memory Map of 16 Point Discrete Output Module Image Table - 1794 OB1629
- Point Discrete Input Module Image Table Mapping - 1794 IB8S29
  - Memory Map of 8 Point Discrete Input Module Image Table (with Status) - 1794 IB8S29
  - Input Delay Times for the 1794 IB8S Input Module30
- Point Discrete Input/Output Module Image Table Mapping - 1794 IB10XOB630
  - Memory Map of 16 Point Discrete Input/Output Module Image Table - 1794 IB10XOB630
- Point Discrete Input Module Image Table Mapping - 1794 IA831
  - Memory Map of 8 Point Discrete Input Module Image Table - 1794 IA831
  - Input Delay Times for the 1794 IA8 Input Module31
- Point Discrete Output Module Image Table Mapping - 1794 OA832
  - Memory Map of 8 Point Discrete Output Module Image32
- Point Discrete Relay Output Module Image Table Mapping - 1794 OW832
- Analog I/O Modules33
- Input Analog Module (Cat. No. 1794 IE8 Series B)34
- Output Analog Module (Cat. No. 1794 OE4 Series B)35
- Input/2 Output Analog Combo Module (Cat. No. 1794 IE4XOE2 Series B)37
- RTD Input Module (1794 IR8) Image Table Mapping39
  - RTD Analog Input Module (1794 IR8) Read Words39
  - RTD Analog Input Module (1794 IR8) Write Words40
- Thermocouple/MV Input Module (1794 IT8) Image Table Mapping40
  - Thermocouple/MV Input Module (1794 IT8) Read40
  - Thermocouple/MV Input Module (1794 IT8) Write41
Operating Modes41
Chapter Summary41
Troubleshooting42
Chapter Objectives42
Fault Conditions42
Troubleshooting with the Indicator Lights42
- Remote I/O System Troubleshooting Guide43
- Table 4.A Remote I/O System Troubleshooting Guide43
Chapter Summary44
Specifications45
Support Services51
- Technical Support51
- Engineering and Field Services51
- Technical Training51
- Repair and Exchange Services51

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