CompactLogix 1769-L23 Migration Recommendations

The CompactLogix 1769-L23 controller series has been discontinued and many industrial facilities are now upgrading to newer CompactLogix controller platforms to improve performance, communications capability, software compatibility, and long term system support.

Recommended migration paths for 1769-L23 controller systems depend on communication requirements and existing application functionality.

Recommended Controller Replacements

For applications not requiring onboard RS232 ASCII communications:

• 1769-L23E-QBFC1B → 1769-L24ER-QBFC1B
• 1769-L23-QBFC1B → 1769-L24ER-QBFC1B
• 1769-L23-QB1B → 1769-L24ER-QB1B

For applications requiring RS232 ASCII communications:

• 1769-L23E-QBFC1B → 1769-L24ER-QBFC1B + 1769-ASCII module
• 1769-L23-QBFC1B → 1769-L24ER-QBFC1B + 1769-ASCII module
• 1769-L23-QB1B → 1769-L24ER-QB1B + 1769-ASCII module

Where RS232 Modbus communications are required, a ProSoft MVI69-MCM communication module may also be used as part of the migration solution.

Software Compatibility Recommendations

The CompactLogix L23 controller family was originally introduced with RSLogix 5000 Version 17 and supported through Version 20. Existing systems using RSLogix 5000 Version 20 can migrate directly to L24 controller platforms with native compatibility.

Systems operating on earlier RSLogix versions may require upgrading to:

• RSLogix 5000 Version 20

or

• Studio 5000 Logix Designer Version 21 or later

Migration Considerations

When upgrading CompactLogix L23 systems, important considerations may include:

• Existing serial and Ethernet communications
• ASCII or Modbus device compatibility
• I/O expansion compatibility
• Panel space and wiring modifications
• HMI and SCADA integration updates
• Software version compatibility
• Future expansion and industrial Ethernet requirements

PLC GEAR can assist with CompactLogix migration planning, controller replacement selection, communication compatibility, software upgrade guidance, and sourcing of replacement automation hardware for legacy industrial control systems.

Condition: NEW (Factory Sealed)

In stock at supplier (7-10 Days Delivery)

Choose Options from Drop-Down List Above or please send request to sales@plcgear.com.au

Controllers are shipped with 1GB SD card and can support up to 2GB SD card.

1768 / 1769 CompactLogix System, CompactLogix 5370 L1 Controller, Dual Ethernet w/DLR, Controller uses POINT I/O (1734) backplane

1769L16ERBB1B L1, 384KB, 6 I/O Expansion via 1734 POINT I/O, 4 Ethernet IP Nodes, 24VDC.

1769L18ERBB1B L1, 512KB, 8 I/O Expansion via 1734 POINT I/O, 8 Ethernet IP Nodes, 24VDC

1769L18ERMBB1B L1, 512KB, 8 I/O Expansion via 1734 POINT I/O, 8 Ethernet IP Nodes, 2 Axis CIP motion with Kinematics function, 24VDC

1769L19ERBB1B L1, 1MB Memory, 8 I/O Expansion via 1734 POINT I/O, 8 Ethernet IP Nodes, 24VDC. 

1768 / 1769 CompactLogix System, CompactLogix 5370 L2 Controller, 2 EtherNet/IP Ports With Device Level Ring Capability

1769L24ERQB1B L2, 750KB, 16 DC Inputs, 16 DC Outputs, Up To 4 1769 I/O Expansion Modules, 8 EtherNet/IP and 120 TCP Connections, 24V DC

1769L24ERQBFC1B L2, 750KB Memory, 16 DC Inputs, 16 DC Outputs, 4 Universal Analog Inputs, 2 Analog Outputs, 4 High Speed Counters, Up To 4 1769 I/O E0xpansion Modules, 8 EtherNet/IP And 120 TCP Connection

1769L27ERMQBFC1B L2, 1MB Memory, 16 DC Inputs, 16 DC Outputs, 4 Universal Analog Inputs, 2 Analog Outputs, 4 High Speed Counters, Up To 4 1769 I/O Expansion Modules, 4 CIP Motion Axis With Kinematics Function, 16 EtherNet/IP and 120 TCP Connections,

1768 / 1769 CompactLogix System, CompactLogix 5370 L3 Controllers, Dual Ethernet w/DLR capability

1769L30ER L3,1MB Memory, 8 I/O Expansion, 16 Ethernet IP Nodes.

1769L30ERM L3, 1MB Memory, 8 I/O Expansion, 16 Ethernet IP Nodes, 4 Axis CIP motion with Kinematics function. 

1769L30ERMS L3, 1MB standard + 0.5MB Safety Memory, 8 I/O Expansion, 16 Ethernet IP Nodes, 4 Axis CIP motion, Kinematics with Integrated Safety function

1769L30ERNSE L3, 1MB Memory, 8 I/O Expansion, 16 Ethernet IP Nodes, No Supercap for RTC. Controllers are shipped with 1GB SD card and can support up to 2GB SD card.

1769L33ER L3, 2MB memory, 16 I/O Expansion, 32 Ethernet IP Nodes

1769L33ERM L3, 2MB memory, 16 I/O Expansion, 32 Ethernet IP Nodes, 8 Axis CIP motion with Kinematics function

1769L33ERMS L3, 2MB standard + 1MB safety memory, 16 I/O Expansion, 32 Ethernet IP Nodes, 8 Axis CIP motion, Kinematics with Integrated Safety function

1769L36ERM L3, 3MB memory, 30 I/O Expansion, 48 Ethernet IP Nodes, 16 Axis CIP motion with Kinematics function.

1769L36ERMS L3, 3MB standard + 1.5MB safety memory, 30 I/O Expansion, 48 Ethernet IP Nodes, 16 Axis CIP motion, Kinematics with Integrated Safety function.

Obsolete

1769L23QBFC1B 512KB, 16DI, 16DO, 4AI, 2AO, 4HSC , 24VDC

1769L31 1768 / 1769 CompactLogix System, Dual Serial Processor, 512K Memory

1769L32C 1768 / 1769 CompactLogix System, ControlNet Processor, 750 Kbyte Memory

1769L32E 1768 / 1769 CompactLogix System, EtherNet Processor, 750 Kbyte Memory

1769L35CR 1.5Mbyte Memory 1769-L35E 1768 / 1769 CompactLogix System, EtherNet Processor, 1.5Mbyte Memory