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ALLEN-BRADLEY / GUARDLOGIX 5570
1756-L73S
GuardLogix 5570 Safety Controller
The Allen-Bradley 1756-L73S is a GuardLogix 5570 primary safety controller designed for integrated standard and safety control within the ControlLogix chassis platform. It provides 8 MB of standard user memory and 4 MB of safety memory, and operates with a dedicated 1756-L7SP safety partner for GuardLogix safety operation.
GUARDLOGIX 8 MB STANDARD 4 MB SAFETY
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CONTROLLOGIX / 5570
1756-L73S
SAFETY CONTROLLER
STANDARD + SAFETY CONTROL
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PRIMARY
1756-L73S
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→
SAFETY
PARTNERSHIP |
SAFETY PARTNER
1756-L7SP
The 1756-L7SP operates with the primary GuardLogix controller to establish the controller partnership required for safety applications.
Slot Position
The safety partner must be installed in the slot immediately to the right of the primary controller.
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1oo2 ARCHITECTURE
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MATCHED FIRMWARE
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SAFETY PARTNER
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INTEGRATED CONTROL
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USB
A USB port is provided for controller connection and configuration.
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SD
NONVOLATILE STORAGE
1 GB Secure Digital storage is associated with the controller platform.
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NETWORKING
The controller has no embedded network port; network communication uses separate chassis communication modules.
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2
SLOT FOOTPRINT
The primary controller and safety partner occupy two adjacent chassis slots.
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01
Programming Environment
GuardLogix 5570 controllers are configured within the Studio 5000 Logix Designer environment.
Safety Task
The safety task uses Ladder Diagram programming.
Standard Tasks
Standard tasks support Ladder Diagram, Structured Text, Function Block Diagram and Sequential Function Chart.
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02
Communication Architecture
1756-L73S does not contain an embedded EtherNet/IP port. Communication is provided through separate ControlLogix chassis communication modules.
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03
Replacement Planning
When replacing a 1756-L73S, the controller catalog number alone is not enough to evaluate the complete system.
Check Together
Controller revision
Safety partner Chassis position Communication modules Standard / safety memory requirements Application I/O capacity |
| MODEL | STANDARD MEMORY | SAFETY MEMORY | APPLICATION POSITION |
| 1756-L71S | 2 MB | 1 MB | GuardLogix 5570 primary controller |
| 1756-L72S | 4 MB | 2 MB | GuardLogix 5570 primary controller |
| 1756-L73S | 8 MB | 4 MB | GuardLogix 5570 primary controller |
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PROJECT / REPLACEMENT SUPPORT
Need 1756-L73S?
Contact our sales team for model verification, replacement planning, quantity requirements and delivery coordination.
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✉ EMAIL · sales@amikon.cn ◉ WHATSAPP · 86-18020776792
Sales Manager: Miya Zheng
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Does 1756-L73S require a separate safety partner for GuardLogix safety operation?
Yes. The 1756-L73S is the primary controller and works with a 1756-L7SP safety partner. The safety partner is installed in the slot immediately to the right of the primary controller.
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Can 1756-L73S be treated as an ordinary 8 MB ControlLogix controller?
No. Although it provides 8 MB of standard user memory, the L73S is a GuardLogix safety controller with dedicated safety memory and a required safety-partner architecture for safety applications.
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How should 1756-L73S be checked when replacing an existing GuardLogix controller?
Check the controller revision, safety-partner model and revision, chassis positions, communication modules, application memory requirements and I/O architecture before replacement.
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Does 1756-L73S have an embedded EtherNet/IP port for direct network connection?
No. The controller has no embedded network port. EtherNet/IP and other supported network connections are provided through compatible communication modules installed in the ControlLogix chassis.
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Why can 1756-L73S be relevant when an application has both standard and safety control requirements?
The GuardLogix architecture allows the primary controller to perform standard control functions while coordinating with the safety partner for safety-related functions. This provides a common controller platform for applications that need both control domains within the same system architecture.
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SERVICE POLICY
Return / Replacement
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Please contact us within 7 days if you have any question after you receiving the items.
The returned items has to be in its original condition, specific reason for the return, we will issue a return or replacement for your order after we received the returns.
The buyer is responsible for all the shipping cost incurred.
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V600-D8KR12
6AV2125-2GB23-0AX0 3HAC046277-001 IC695PSD040B 6EP1933-2EC41 1756-M16SE 6ES7223-3AD30-0XB0 IC200ALG328D IC694PWR331F 1747-L551 CZ-V21A IC695CPE302 6ES7132-4BF00-0AB0 DVS-005I00 3HAC17396-1 |
1794-PS1
6GK5208-0BA00-2AF2 IC200MDL930 3HAC031851-001 6ES7157-1AB00-0AB0 1794-IA8 6ES7590-1AF30-0AA0 6EP1331-1SH03 IC694PWR331 F-PWR 01 1756-IV32 3DO650.6 IC200ALG264F EE-SX871 6AV7860-3EH00-0AA0 |
6ES7214-1BG40-0XB0
IC695CPE310 6ES7488-3AA00-0AB0 V600-D8KR04 3IF613.9 F-PWR 02 6AV2125-2GB23-0AX0 3HAC022286-001 IC200ALG264F EWF-11A-D KD485 1756-M16SE 6FC5812-2GY47-0YA0 YT674 B8512C4A50-HW11 |
1794-OA8
IC200ALG328D 6ES7132-4BF00-0AB0 IC695CPE302 1794-IB16 3RK7137-6SA00-0BC1 X20AI4632-1 3HAC059673-001 A12-FC-XX-C1 MHS3-25D KV-LE21V CZ-H32 X20MM2436 EWF-11B-D AS1201F-M5-04 |



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