Rockwell Automation 1792-IB8XOB8PLP INSTL INSTR ARMORBLOCK LP 8/8 - Manual (Page 7)

ArmorBlock-LP 8 Input/8 Output Module 7
Publication 1792-5.8 – December 1997
Type of I/O Connections Consumes Produces
Polled 1 Bytes 2 Bytes
Bit Strobe 0 Bytes 2 Bytes
Change of State 0 Bytes 2 Bytes
Polled device – a master initiates communication by sending its polled
I/O message to the ArmorBlock module. The 8 input/8 output module
consumes the message, updates outputs, and produces a response that
reflects the status of 1) its inputs, and 2) any input or output faults.
Change of state device – productions occur when an input or fault
condition changes. 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 Strobe device – a master initiates communication by sending its bit
strobe I/O message. All bit strobed devices then respond. The 8 input/8
output module consumes the message, and produces a response that
reflects the status of inputs and outputs.
Refer to the table below for the word/bit definitions.
Bit 07 06 05 04 03 02 01 00
Produces I7B I5B I3B I1B I7A I5A I3A I1A
Produces IS OF Reserved
Consumes O8B O6B O4B O2B O8A O6A O4A O2A
Where: I = Input
O = Output
IS = Sensor source voltage fault
OF = Output fault status