Rockwell Automation 1792D-2B2LP INSTL INSTR ARMORBLOCK LP2 - Manual (Page 5)

2 Sinking Input / 2 Output Module 5
Publication 1792D-5.25- January 1999
Cyclic - allows configuration of the block as an I/O client. The block will
produce and consume its I/O cyclically at the rate configured.
Polled - a master initiates communication by sending its polled I/O
message to the ArmorBlock module. This 2 input / 2 output module
consumes the message, updates outputs, and produces a response. The
response has input data and the status of the Auxiliary power.
Change of state - productions occur when an input changes. If no input
change occurs within the expected packet rate, a heartbeat production
occurs. This heartbeat production tells the scanner module that the
ArmorBlock LP2 module is alive and ready to communicate. Consumption
occurs when data changes and the master produces new output data to the I/
O block.
Refer to the table below for the word/bit definitions.
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Polled 1 Byte 1 Byte
Change of State 1 Byte 1 Byte
Bit 07 06 05 04 03 02 01 00
Produces 0 RSVD OPWR RSVD RSVD RSVD RSVD I1 I0
Consumes 0 RSVD RSVD RSVD RSVD RSVD RSVD O1 O0
Where: I = Input O = Output RSVD = Reserved OPWR = Output Power (Auxiliary Power)
Byte Bit Description
Produces 0
00-01
02-03
04
05
06
07
Input status bits: When the bit is set (1), the input is on. Bit
00 corresponds to input 0, bit 01 to input 1.
Reserved
Reserved
Reserved
Output power fault (OPWR): When the bit is set (1) auxilary
power is not present.
Input Short Circuit (ISC)
Consumes 0
00-01
02-07
Output bits: When the bit is set (1), the output will be turned
on. Bit 00 corresponds to output 0, bit 01 corresponds to
output 1.
Reserved