Rockwell-automation 1792-OB8PLP INSTL INSTR 8 OUTPUT MODULE Manuale Utente Scaricare il pdf (Pagina 7)

ArmorBlock-LP 8 Output Module 7

Publication

1792-5.7 – December 1997

Communicate with Your ArmorBlock Module

This ArmorBlock module’s I/O is exchanged with the master through a

poll, bit strobe or change of state connection.

When set for Polled, Bit Strobe, or change of state, the module consumes

and produces as follows:

Type of I/O Connections Consumes Produces

Polled 1 Bytes

1 Byte

Bit Strobe

0 Bytes

1 Byte

Change of State

0 Bytes

1 Byte

Polled device – a master initiates communication by sending its polled

I/O message to the ArmorBlock module. The 8 output module consumes

the message, updates outputs, and produces a response that reflects the

status of its output faults.

Change of state device – productions occur when a fault condition

changes. If no fault condition occurs 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 Strobe device – a master initiates communication by sending its bit

strobe I/O message. All bit strobed devices then respond. The 8 output

module consumes the message, and produces a response that reflects the

status of output faults.

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Rockwell-automation 1792-OB8PLP INSTL INSTR 8 OUTPUT MODULE Manuale Utente Pagina 7