Spectrum-controls 1771sc-IFE32 Manual do Utilizador descarregar pdf (Página 12)

2 PLC-5

32-Channel Analog Input Module

Program Selectable Input Ranges

Valid acquisition types/ranges are listed below:

Single Ended Ranges: Limits: Differential Ranges: Limits:

0* -10 to +10 V 8 -10 to +10 V

1 0 to +10 V 9 0 to +10 V

2 0 to +5 V 10 0 to +5 V

3 +1 to +5 V 11 +1 to +5 V

4 -5 to +5 V 12 -5 to +5 V

5 0 to +20 ma 13 NA

6 +4 to +20 ma 14 NA

7 -20 to +20 ma 15 **Disabled

* = Default

** = Disabled. If this is the selected value, acquisition of this channel is disabled.

This can be used to

improve throughput in modules where some channels are not used.

NA = Not allowed.

How Analog Modules

Communicate with

Programmable Controllers

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.

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

Input Module

1771sc-IFE32

I/O Chassis

Backplane

PC Processor

5 6

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 49 50

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Spectrum-controls 1771sc-IFE32 Manual do Utilizador Página 12