Rockwell-automation 1792-IB8/B INSTL.INST ARMOR BLOCK 8 INPUT Manual de usuario descargar pdf (Pagina 10)

ArmorBlock 8 Input Module10

Publication 1792-5.2 – October 1996

Communicate with Your ArmorBlock Module

This ArmorBlock module acts as a slave in a master/slave environment.

It is both a “polled device” and a “change of state device.”

When configured as a polled device, a master initiates communication

by sending its polled I/O message to the ArmorBlock module. The 8

input module scans the inputs and fault bit producing a response that

reflects their status.

When configured as a “change of state” device, productions occur

when an input changes or an input source voltage fault occurs. If

neither has occurred within the “expected packet rate,” a heartbeat

production occurs. This heartbeat production tells the scanner module

that the ArmorBlock module is alive and ready to communicate.

Bit 07 06 05 04 03 02 01 00

Produces I7 I6 I5 I4 I3 I2 I1 I0

Produces S Reserved

Where: I = Input

S = Sensor source voltage fault

Word Bit Description

Produces

00–07 Input bits – bit 00 corresponds to input 0, bit 01 to input 1, and

so on.

0 = input off; 1 = the input is on.

Produces

00–06 Reserved

07 Sensor source voltage fault bit – this bit is set (1) when the sensor

source voltage is faulted.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 35 36

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Rockwell-automation 1792-IB8/B INSTL.INST ARMOR BLOCK 8 INPUT Manual de usuario Pagina 10