Communicate with your armorblock module – Rockwell Automation 1792-OB4E INSTL.INST ARMORBLOCK 4 OUTPUT User Manual
Page 10

ArmorBlock 4 Output Module
10
Publication 1792-5.4 – 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 4
output module consumes the message, updates outputs, and returns the
status of the output bits.
When configured as a “change of state” device, productions occur
when an output fault occurs. If none 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
Reserved
OF3
OF2
FS1
FS0
Consumes
Reserved
O3
O2
O1
O0
Where: O = Output
OF = Output fault
Word
Bit
Description
Produces
00–03
Output fault bits – when the bit is set (1), the output is faulted. Bit
00 corresponds to output 0, bit 01 corresponds to output 1, etc.
04–07
Reserved
Consumes 00–03
Output bits – bit 00 corresponds to output 0, bit 01 corresponds to
output 1, etc.
0 = output is off; 1 = output on
04–07
Reserved