Rockwell-automation 1771-IFE , D17716.5.90 USER MNL. ANALOG INPUT Modu Manual de usuario descargar pdf (Pagina 11)

Overview of the Analog Input Module

Chapter 1

1-2

Table 1.A

Program

Selectable Input Ranges

Voltage Current

1 to 5V dc 4 to 20mA

0 to 5V dc 0 to 20mA

5 to +5V dc 20 to +20mA

10 to +10V dc

0 to 10V dc

The processor transfers data to the module (block transfer write) and from

the module (block transfer read) using BTW and BTR instructions in your

ladder diagram program. These instructions let the processor obtain input

values and status from the module, and let you establish the module’s

mode of operation (Figure 1.1).

1. The processor transfers your configuration data to the module via a

block transfer write instruction.

2. External devices generate analog signals that are transmitted to the

module.

Figure 1.1

Communication

Between Processor and Module

PC Processor

I/O Chassis

Backplane

Input Module

Cat. No. 1771IFE



10947I

How Analog Modules

Communicate with

Programmable Controllers

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 62 63

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Rockwell-automation 1771-IFE , D17716.5.90 USER MNL. ANALOG INPUT Modu Manual de usuario Pagina 11