Allen-Bradley 1756 Series

24 Rockwell Automation Publication 1756-UM013B-EN-P - October 2019
Chapter 1 Digital Safety I/O Module Operation in a Control System
Remote I/O Modules
When 1756 ControlLogix digital safety I/O modules reside in a separate
location from a GuardLogix 5580 or Compact GuardLogix 5380 controller, they
are remote I/O modules.
Remote 1756 ControlLogix digital safety I/O modules are accessible over an
EtherNet/IP network via a 1756 ControlLogix EtherNet/IP adapter.
Figure 5
shows remote safety I/O modules in a GuardLogix 5580 control
application.
Figure 5 - Remote Safety I/O Modules in a GuardLogix 5580 Control Application
Ownership
Every standard or safety I/O module in a GuardLogix 5580 control system must
be owned by a controller, also known as the owner-controller.
1756 ControlLogix digital safety I/O modules digital input modules can only
have one owner-controller. When a 1756 ControlLogix Digital Safety I/O
Module is used in a GuardLogix 5580 control system, the owner-controller
performs the following:
• Stores configuration data for every module that it owns.
• Sends the I/O module configuration data to define module behavior and
begin operation in the control system.
Each I/O module must continuously maintain communication with its owner-
controller during normal operation.
DC OUTPUT
SAFETY
FLT
ST
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
O
K
527
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
F15
F16
5069-OBV8S
5069-IB8S 5069-IB8S
5069-OBV8S
OUTPUT OUTPUT
Compact 5000™ I/O
Compact 5000™ I/O
OK
Logix55L8SP™
NET
LINK
RUN
REM
RUN
PROG
FORCE SD OK
Logix5584ES™
DC INPUT
DC OUTPUT
SAFETY
FLT
ST
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
O
K
SAFETY
FLT
ST
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
O
K
DC INPUT
FLT
ST
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
GuardLogix 5580 Safety Controller
1756-L8SP Safety Partner
1756 ControlLogix EtherNet/IP Adapter
1756 ControlLogix Safety I/O Modules
PanelView™ Plus 7 Terminal
Stratix® 5400 Switch
PowerFlex® 527 Drive Kinetix® 5500 Drive
Compact 5000™ I/O EtherNet/IP Adapter
Compact 5000 I/O Safety Modules